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6209-section-8a-2012

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PDF page 1

8A-1 
Section 8A - Master File Codes - Transaction, MF and IDRS 
Collection Status, Freeze and IDRS Status 48, Restrictive and Filing Requirement 
1 Nature of Changes 
Description Page No. 
Transaction Codes 8A - 1 
MF and IDRS Collection Status Codes 8A-37 
Master File Freeze Codes and IDRS status 48 8A-41 
Restrictive Conditions 8A-48 
Filing Requirement Codes (FR Codes) 8A-48 
2 Transaction Codes 
Transaction Codes (TC) consist of three digits.  They are used to identify a transaction being processed and to maintain a 
history of actions posted to a taxpayer’s account on the Master File. Every transaction processed by ADP must contain a 
Transaction Code to maintain Accounting Controls of debits and credits, to cause the computer at ECC to post the 
transaction on the Master File, to permit compilation of reports, and to identify the transaction when a transcript is 
extracted from the Master File. Transaction codes that are unique to IDRS are also included. 
The definitions of several transaction codes are necessarily changed since there will be no resequencing, offsetting, or 
computer generated interest. In addition, all refunds will be scheduled manually with the refunds posted to the IMF using 
TC 840. 
Refer to Handbook 2.24.1 for obsolete transaction codes. 
Refer to Section 13.06 for pending transaction and merged related codes. 
Reversal Codes 
An “R” following the transaction code indicates the transaction has been reversed. 
The Reversal Code indicates the transaction has been reversed.  Its valid values are "0", indicating no reversal and "1" 
indicating a reversal.  An 'R' following the transaction code display indicates the transaction has been reversed.   
IMF Payment or penalty transaction codes ending with a transaction code of “3” which are NOT LISTED in this section are 
actually reversed transactions which originally ended with a transaction code of "0".  For programming purposes, the “0” in 
the third position of the transaction code has been converted to “3” to indicate the original payment or penalty transactions 
(or portion of it) which has been reversed. However, for account analysis purposes, those IMF payment/penalty 
transaction codes ending with 
a “3” which are NOT LISTED in this section should be treated as transactions which have 
been reversed (reversal code = "1")."  
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
000 I/B/E Establish an 
Account 
BMF: 04, 63, 
80, 81 
IMF: 63 
EPMF: 04, 63 
Adds a new taxpayer entity to the applicable Master File. 
IMF— Establishes Scrambled SSN Indicator. TC 000 with 
DLN block/serial overlay of 99999 is computer generated 
from joint return with CCC’F to create an account for the 
spouse. 
E Establish a Plan 64 Establish a Plan Data module. 
001 B/E Resequence an 
Account due to a 
TIN Change 
Generated 
Transaction 
Resequences an account to a different TIN or 
accomplishes a merge of accounts. Generated when TC 
011, 040, or 041 posts. Carries old TIN as reference. 
001 E Resequence due 
to Plan Number 
64 Resequences a plan data module due to a plan number 
change. Carries old plan number as reference. 
Any line marked with # is for official use only  
  
 
 
 
  
 
 
 
 
 
 
  
 
 
 
  
 
 
 
 
 
 

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8A-2
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
change 
001 I/A Resequence an 
Account 
Generated 
Transaction 
Resequences an account because of an SSN change or 
a change in SSN validity. 
001 B/E TIN Change 
Failed to  
Resequence 
Generated 
Transaction 
Account did not meet merge criteria. Restores entity and 
tax modules to the MF that were processed as TC 001 
under old TIN. 
002 E Resequence 
EPMF Merge-
Fail 
64 Resequences contents of a TC 001 or 005 transaction 
when there is a merge-fail between two plans of an EPMF 
entity. 
003 B Duplicate Tax 
Modules are not 
Re-
sequenced 
Generated 
Transaction 
Resequences a discovered “duplicate” Tax Module 
(identical MFT and Tax Period) of a TC 001 back to the 
old EIN. Account Balance is adjusted. Changes all MFR 
Codes to 8. A CP 209 is issued in the cycle the TC 003 
posts. 
003 B BMF Partial 
Merge 
IDRS transaction. See Section 14.7. Appears at the old 
EIN. 
004 B BMF Partial 
Merge 
IDRS transaction. See Section 14.7. Appears at the new 
EIN. 
005 I/B Resequenced 
Account for 
Merge 
Generated 
Transaction 
Account being resequenced for an attempted merge with 
another account. Posts as a TC 005/006 combination if 
merge is successful and as TC 006 if unsuccessful. 
005 E Resequenced 
Plan for Merge 
64 Assigned to the To Plan Data Module and each of its 
return modules being resequenced during the merging of 
two plans for one EPMF entity. 
006 I/B 
E 
Account 
Resequenced to 
Master File 
Location 
Generated 
Transaction 
Indicates consolidation of accounts has been made (See 
TC 002 for BMF/
IMF and EPMF: TC 005 for IMF). A TC 
006 without a cross-reference TIN indicates an 
unsuccessful merge. A TC 006 (preceded by a TC 005) 
with a cross-reference TIN indicates a successful merge 
from the cross-reference TIN. 
006 E Merge Plan  
Resequenced 
64 Indicated successful merge of two plans of an EPMF 
entity. Carries old plan number as a reference. 
007 I/B Carrier 
Transaction 
Generated 
Transaction 
A carrier transaction for transactions from a dissolving 
account as a result of a successful merge. The TC 007 
does not post to Master File. It causes generation of TC 
446. 
008 I/B IMF/BMF 
Complete Merge 
IDRS transaction. See Section 14.7. Appears at the new 
TIN. 
BMF: Generated transaction 
011 I/B 
E 
Change EIN or 
SSN. 
63 Changes TIN of an Account on the Master File or 
consolidates two TINs. BMF: Prevents posting of TC 
other than 002, 003, 006 and 026. 
011 E Change Plan 
Number 
64 Changes the number of an EPMF entity. 
012 I/B 
E 
Reopen Entity 
Account 
IMF: 63 
BMF: 63, 80 
EPMF: 63 
Updates FR Codes. Reopens an Account on the Master 
File; may include other Entity changes shown in TC 013, 
014, 015 and 016 (TC 016 not EPMF). BMF/IMF; If City, 
State present and no street address, drops MF street 
address. Zeros zip code for foreign addresses. 
012 E Reopen Plan 64 Reopens a plan of an EPMF entity. Changes FRC 8 to 
blank. 
013 I/B 
E 
Name Change BMF: 63, 80 
Others: 63 
Changes a name of an Account on the MF. May include 
other Entity changes shown in TC 012, 014, 015, and 
016, (TC 016 not EPMF). IMF/IRAF Replaces or 
establishes name line for tax year indicated by new name 
line. Deletes second name line if none is input. BMF 
Replaces all name lines. IMF: TC 013 with DLN 
block/serial overlay of 99999 is computer-generated from 
TC 150 with CCC’9’ which causes establishment of new 
Any line marked with # is for official use only  

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8A-3
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
name line for primary taxpayer only. TC 013 with a 
Reference MFT Code of 55 present will only update the 
Civil Penalty name line. Normal name line processing will 
be by-passed. 
013 E Plan Name 
Change 
64 Replaces the plan name for a plan of an EPMF entity. 
014 I/B 
E 
Address Change BMF: 63, 80 
Others: 63 
Changes the address of an account on the MF. May 
include other Entity changes shown in TC 012, 013, 015, 
016 (TC 016 not EPMF). Replaces Street Address, City, 
State and zip code. If street address blank, literal “local” is 
generated for street address. Updates “cycle of last 
address change” in the entity. Zeros zip code for foreign 
addresses. BMF: Generated when BMF address is 
changed, based on data input from IMF on TC 996. 
EPMF Changes mailing address. 
015 I/B 
E 
Location and/or 
Zip Code 
50, 63 Changes the District or Area Office Location Code and/or 
Zip Code of an Account on the MF. If TDA is being 
transferred from one District or Area Office to another, 
use Doc. Code 50; otherwise, use Doc. Code 63. Other 
Entity changes described in TC 012, 013, 014 and 016 
(TC 016 not EPMF) may be included with Doc. Code 63. 
An address change (TC 014) may be included with Doc. 
Code 50. EPMF: Out of SC changes are valid. 
016 I/B 
E 
Miscellaneous 
Change Entity 
Codes 
BMF: 63, 80, 
81 
Others: 63, 64 
Changes the following codes: Filing Requirement Codes, 
Railroad Board number, FYM, PMF indicator, Backup 
Withholding Indicator, F8123 indicator, Employment 
Code, Magnetic Tape Code (also updated by TC 960 and 
961), Date of Death, Sole Proprietor/Spouse SSN, PDT 
indicator (blocking series 700-749 turns indicator on; B.S. 
750-799 turns indicator off). TC 016 with special DLN 
xx96388888888X is generated to validate sole proprietor 
SSN in the entity. Updates no other entry data. May 
include other entity changes shown in TC 012, 013, 014, 
and 015. Doc Code 80/81 updates the EO Entity Section. 
FRC only. IMF: TC 016 also generated by CC IRCHG 
when validating an IRS name control. 
017 I Spouse SSN 63 Adds or changes the Spouse’s SSN in the First Name 
Line of the taxpayer’s Account.  
017 E Change File 
Folder Number 
64 Replaces the File Folder Number. 
018 I/B Release 
Undelivered 
Refund Check 
Freeze 
64 Updates address: releases all 740 freezes in the account. 
IMF-Unpostable 174 if no 740 freeze is present. 
019 I/B/E Zip Code/Area 
Office Change 
50, 63 Generated whenever Zip Codes or Primary Location 
Code changed. Will post as a TC 015. Does not update 
the “cycle of last address change.”  When Location Codes 
or zip code change; otherwise, will be dropped. 
Generated to IRAF from IMF. 
020 I/B 
E 
Closes Account 
Deactivates 
Account 
63 Removes an account from Master File or inactivates the 
account so future tax modules can not be created. Any 
entity TC other than TC 012 will go unpostable 349. 
Changes all filing requirement codes to “8” if tax modules 
are present in the Account. 
020 E Delete a Plan 64 Delete a plan when it does not have a return module or 
an unreversed TC 121, 123 or 125 in the Plan Data 
Module; otherwise, the plan MFR is changed to an “8” 
022 B Delete EO  
Submodule 
63 Delete EO Section that was erroneously added to an 
entity module. 
023 B Reverse the  77 Reverses the TC-024 election. 
Any line marked with # is for official use only  

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8A-4
 
 
  
 
 
 
 
 
 
  
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
Election to Lobby 
024 B Election to Lobby 77 The election by an organization to lobby for legislation 
from Form 5768. 
025 No RSQ-SSN Generated 
Transaction 
Failure to merge two Master File accounts. Does not post 
to the Master File. 
026 I/B 
E 
Delete Changed 
TIN or Old Plan 
Data 
Generated 
Transaction 
Deletes the Entity data that remained on the MF under 
the old EIN or SSN. IMF: Creates a “memo” level locator 
record with the “TO” SSN. 
026 I/B IMF/BMF 
Complete Merge 
IDRS transaction. See Section 14.7. Appears at the old 
TIN. 
026 E Delete Old Plan 
Data 
64 Deletes plan data under Old Plan Number after 
resequencing of a plan. 
030 I/B Update Location 
Codes Out-of-
Campus 
50, 63 Updates Location Codes when a change in Campus 
Code is involved. If TDA is being transferred, use Doc. 
Code 50; otherwise, use Doc. Code 63. Entity changes 
described in TC 013, 014, 015 or 016 may be included 
with Doc. Code 63. Change of address (TC 014) may be 
included with Doc. Code 50. 
040 I/B Directs Change 
to Valid SSN 
63 Changes SSN or name of an Account which is on the 
Valid Segment of the IMF or the valid portion of the BMF. 
May include changes to Filing Status Code, and spouse 
SSN: Generated from the IMF transaction. 
041 I/B Directs Change 
to Invalid SSN 
63 Changes SSN or name of an Account which is on the 
Invalid Segment of the IMFor the invalid portion of the 
BMF. May include changes to FSC or spouse SSN.  
052 B Reversal of 053, 
054, 055 
63 Reverse all previously posted TC053, 054 or 055 
transactions. 
053 B/E Plan Year 
Ending Month 
Change 
63, 77, 64 Form 1128 processed to accept change of accounting 
period. 
054 B Retained FYM 63 Rev. Proc. 87-32. 
055 B Change or Adopt 
New FYM 
63 Form 8716 - Election to have a tax year other than a 
required tax year. Rev. Proc 87-32. 
057 B Reversal of 054, 
055 
Generated 
Transaction 
Reverses TC 054/055 when a CU UPC 307 
F1120/1120S/1065 return is posted with CC “Y” and FYM 
12 or TC 620 posted. 
058 B Rejection of 
Form 8716 
63 Rejection of Election of Tax Year other than a required 
Tax Year. Form 8716 was denied. 
059 B Rejection of 
Form 1128 
63 Rejection of Application for change in Accounting Period. 
Form 1128 was denied. 
060 B Elect Foreign 
Sales 
Corporation 
(FSC) 
63 FSC or Small FSC election, Form 8279. 
061 B Revoke 
Reverses TC 
060, 063, 064 or 
065 
63 Revocation of FSC or small FSC election 
062 B Erroneous 63 Reversal of TC 060, 063, 064, 065 
063 B FSC Election 
received 
63 Election as a FSC or small FSC has been received. 
064 B FSC election 
denied 
63 Denial of election to be treated as a FSC or small FSC 
065 B FSC Revocation 
Received 
63 Notification of revocation received for FSC or small FSC 
066 B Terminate FSC 
Received 
63 Election to be treated as a FSC or small FSC has been 
terminated 
070 B Church 63 Records the filing of Form 8274, Certification by 
Any line marked with # is for official use only  

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8A-5
 
 
 
 
 
 
  
 
 
 
 
 
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
Exemption From 
Social Security  
Taxes 
Churches and Qualified Church-controlled Organizations 
Electing Exemption From Employer Social Security Taxes 
(FICA). Establishes an effective date, update 
Employment Code to “C,” From 941 Filing Requirement to 
“04” and the Form 940 File Requirement Code to “0”. 
071 B Revocation of 
Church 
Exemption From 
Social Security 
Taxes 
63 IRS terminates or revokes the filing of Form 8274 (TC 
070). Establishes a revocation/termination effective date 
and updates the 941 File Requirement to “01.” The 
Employment Code may also be changed to “W” or be 
deleted if necessary. If Employment Code deleted, Form 
940 Filing Requirement is updated to “0”. 
072 B Deletion of TC 
070 Input in 
Error 
63 Records the correction of an erroneously posted TC 070. 
The Employment Code is deleted and the 941 FR is 
updated to “01.” 
073 B Correction of 
Erroneous 
Revocation/ Ter­
mination 
63 Used when 8274 election has been erroneously 
terminated by IRS with input of TC 071. Reverses all 
previously posted TC 071 transactions. The election must 
be re-established with input of another TC 070. 
076 PSC inputs to indicate acceptance of Form 8832, Entity 
Classification Election. 
077 B Reversal of TC 
076 
53 Reverses the acceptance of an Entity Classification 
Election input in error. 
078 B Rejection of 
Form 8832, 
Entity 
Classification 
Election 
53 Rejection/Denial of an Entity Classification Election. 
079 B Revocation of 
Form 8832, 
Entity
Classification 
Election 
53 Indicates the revocation of an Entity Classification 
Election beginning with the date specified in the 
 transaction. 
080 I Validates 
Spouse’s SSN 
63 Transaction validates spouse’s SSN. Does not post to the 
Master File. 
082 B Acceptance of 
Form 8869 
53 Indicates the deemed liquidation of the subsidiary into the 
parent beginning with the date specified in the 
transaction. Following the deemed liquidation the QSub 
is not treated as a separate corporation; all of the 
subsidiary’s assets, liabilities, and items of income, 
deduction, and credit are treated as those of the parent. 
083 B Reversal of TC 
082 
53 Reverses the acceptance of a Qualified Subchapter S 
subsidiary (QSub) Election input in error. 
084 B Termination of 
Form 8869 
53 Indicates the termination of a Qualified Subchapter S 
Subsidiary (QSub) Election beginning with the date 
specified in the transaction. 
085 B Reversal of TC 
084 
53 Reverses the Termination of a Qualified Subchapter S 
Subsidiary (QSub) Election input in error. 
086 B Effective date of 
revocation 
53 Revocation of a Qualified Subchapter S Subsidiary 
Election (QSub). 
087 B Reversal of TC 
086 
53 Reverses the Revocation of a Qualified Subchapter S 
Subsidiary (QSub) Election input in error. 
090 B Small Business 
Election 
53 Indicates that beginning with the date specified in the 
transaction, the corporation will be taxed as a small 
business corporation. Changes 1120 FR to 2. Blocking 
Series 950-999 generate a TC 474 for MFT 02 period 
ending and month preceding the effective date. 
091 B Terminate Small 
Business 
53 Indicates the termination or revocation of being taxed as 
a small business and updates the Form 1120 FR to “01”. 
Blocking Series 950-999 does not update filing 
Any line marked with # is for official use only  

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8A-6
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
requirement or FYM yet, but delays update for 26 weeks. 
092 B Reverses 090, 
093, 095, 097 
53 Records the correction of an erroneously posted TC 090, 
093, 095 or 097. Reverts Filing Requirements to “01”. 
093 B Application for 
Small Business 
Election 
53 Application for Sub-Chapter S election Form 2553 
094 B Application for 
Small Business 
Denied 
53 Sub-Chapter S election denied 
095 B Application for 
Small Business 
Pending 
53 Form 2553 requesting termination received. No 
determination made. 
096 B Small Business 
Election  
Terminated 
53 Sub-Chapter S election terminated. Updates 1120 FR to 
“01”. Blocking Series 950-999 does not update filing 
requirement or FYM yet, but delays update for 26 weeks. 
097 B Application for 
Small Business 
Pending National 
Office Approval 
53 Form 2553 has been sent to National Office for 
determination. 
098 B Establish or 
Change in a 
Fiduciary 
Relationship 
63 Indicates that Form 56, Notice Concerning Fiduciary 
Relationship, or correspondence was received 
establishing or indicating a change in fiduciary 
relationship when a 1 is entered in the FORM-56-CHG­
IND. 
099 B Termination of 
Fiduciary 
Relationship 
63 Indicates that Form 56, Notice Concerning Fiduciary 
Relationship, or correspondence was received, 
terminating a fiduciary relationship. 
100 B Acceptance of 
Qualified 
Subchapter S 
Trust (QSST) 
53 Indicates acceptance of an election to be treated as a 
Qualified Subchapter S Trust (QSST) beginning with the 
date specified in the transaction. 
101 B Revocation of 
Qualified 
Subchapter S 
Trust (QSST) 
53 Indicates revocation of an election to be treated as a 
Qualified Subchapter S Trust (QSST) beginning with the 
date specified in the transaction. 
102 B Acceptance of 
Electing Small 
Business Trust 
(ESBT) 
53 Indicates acceptance of an election to be treated as an 
Electing Small Business Trust (ESBT) beginning with the 
date specified in the transaction. 
103 B Revocation of 
Electing Small 
Business Trust 
(ESBT) 
53 Indicates revocation of an election to be treated as an 
Electing Small Business Trust (ESBT) beginning with the 
date specified in the transaction. 
110 B — Generated 
Transaction 
Designates Windfall Profits Tax return to the GMF 
unpostable system. 
120 I/B Account 
Disclosure Code 
77 or 
Generated 
Indicates information extracted for external use. Is input 
with Doc. Code 77 or is generated for mass extracts from 
Master File. Posts to a separate disclosure file when TC 
990, 991, 992, or 993 is processed with Doc. Code 56 or 
an agency code. IMF ONLY: Generated. 
121 E Employee Plan 
Characteristics 
01, 03, 06, 07, 
09, 53 60, 61, 
62, 72, 73, 78 
Posts Employee Plan Characteristics from Forms 3672, 
3672A, 4461, 4461-A, 4578, 5300, 5301, 5303, 5306, 
5306SEP, 5307 and 5309. 
122 E Reversal of 
Employee Plan 
Characteristics 
77 Reverses TC 121. 
123 E Update of 
Employee Plan 
Characteristics 
01, 03, 06, 07, 
09, 53, 60, 61, 
62, 72, 73, 78 
Updates Employee Plan Characteristics. 
Any line marked with # is for official use only  

PDF page 7

 
 
 
  
 
  
 
  
 
 
 
  
 
8A-7
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
125 E Termination 10,11 Form 5310 Posts a complete termination of an Employee 
Plan (Doc Code = 10). Form 5310-A posts a merger, 
consolidation or transfer of an Employee Plan (Doc Code 
= 11) 
126 E Reversal of  
Termination 
77 Reverses TC 125. 
127 E Administrator 
Data Change 
64 Changes the Name, Address or EIN of the Plan 
Administrator. 
128 E Administrator 
Data Change 
64 Replaces the Plan Name and Administrator Data 
129 I HHS Request 57 Parent Locator Service Address Request transaction 
(blocking series 422). Child Support Enforcement Agency 
information request (blocking series 419). 
130 I/B Entire Account 
Frozen from 
Refunding 
77 Entire account is frozen from refunding, overpayment is 
applied to NMF. Credits of $25.00 or more. 
Overpayments in excess of $24.99 will cause a CP44 to 
be generated.  
IMF: Freeze only if more than $24.99. TC 131 or TC 824 
will reverse all previously posted TC 130s See note 
below (TC 824 may or may not have a money amount). 
Credits under $25.00 before interest will be refunded, but 
TC 130 Freeze will not be released. TC 130 with closing 
code 03, 12, or 24–32 should correspond to a BMF lia­
bility written off with TC 530 and will have similar TC 130 
closing code.  
131 I/B Reversal of TC 
130 Refund 
Freeze 
77 Releases the TC 130 Account refund freeze if input as 
the same type as the original TC 130, permits refunding 
of overpayment if other freeze conditions are not present. 
DMF: agency refund of a prior offset of refund reversal 
correcting a prior agency refund. 
132 I Reversed TC 
130 
Generated 
Transaction 
A TC 130 which was reversed. 
136 B Suppress FTD 
Alert 
77 Suppress issuance of Federal Tax Deposit FTD) Alert. 
137 B Reverse 
Suppress 
77 Reverses TC 136. 
140 I IRP Delinquency 
Inquiry 
Generated 
Transaction 
Establishes Entity and/or Tax Module and Status Code 02 
(Delinquency Inquiry) within the affected tax module. 
141 I/B/E Delinquency 
Inquiry 
Generated 
Transaction 
Generated by MCC Return Delinquency Check (BMF, 
EPMF) to record Compliance issuance and by IDRS to 
record issuance of Delinquent Return Notice (IMF, BMF, 
EPMF). Establishes MCC tax module and/or posts to 
EPMF module, does not post to BMF module, posts to 
IMF module only if it establishes the module. MCC 
generated TC 141 posts one cycle after Compliance 
issuance; IDRS generated TC 141 posts two cycles after 
Notice issuance. Transaction date is 23C date for 
Compliance or Notice issuance cycle and is posted as the 
02 status date. Status cycle is generated from current 
MCC posting cycle except that IDRS generated IMF TC 
141 status cycle is taken from IDRS issuance cycle in the 
transaction. 
142 I/B/E Delinquency 
Investigation 
Generated 
Transaction 
Records the issuing of a Taxpayer Delinquency 
Investigation (TDI). Establishes Status Code 03 within the 
affected tax module. Processed same as TC 141. 
148 I/B Issuance of TDA 
or TDI Assembly 
77 Causes the accelerated issuance of a TDI (BMF Only) or 
TDA assembly when certain non-compliance conditions 
are present in ANY of the TDA modules within the 
Account. TC976, 977, 291 AND 150 (Except SFR return) 
Any line marked with # is for official use only 

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Trans 
Code
 
DR/CR File Title Valid Doc. 
Code 
Remarks 
will Unpost UPC 191. Requires two digit code for IDRS 
input. Refer to IRM for code titles and definitions. 
149 I/B Reversal of TC 
148 
77 Reverses TC 148 and permits the normal issuance of TDI 
and TDA. 
150 Debit* 
(NPJ) 
I/B 
E/A 
P 
Return Filed & 
Tax Liability 
Assessed 
IMF: 05 thru 
12, 21, 22, 26, 
27, 51, 72, 73, 
BMF: 03, 05– 
11, 13, 16, 20, 
21 (AUSC 
Only), 23, 29, 
35, 36, 38, 
40-44, 46, 51, 
59, 60, 65, 66 
(PSC only) 
67, 68, 71, 78 
(OSC Only), 
81, 83, 90-93, 
95 EPMF: 30, 
31, 32, 37 
PMF: 69 
A tax liability assessed from the original return 
establishes a tax module. *BMF: Assessment may be 
Credit for Form CT-1, 720 and 941. See TC 976-977 for 
amended return.    
150 I Entity Created by 
TC 150 
Generated 
Transaction 
This TC 150 when posted to the Entity Transaction 
Section indicates the Master File Entity was created from 
the posting of the return. 
151 E Reversal of TC 
150 or 154 
77 EPMF: Reverses return data (TC 150, 154, 155, 156, 
976, 977) or moves a return to a different module. 
152 I/A Entity Updated 
by TC 150 
Generated 
Transaction 
Designates a return which updated entity data and is 
posted to the Entity Transaction Section. 
154 E Posting F5330 
Data 
35 Form 5330. Effective January 2001, the 5330 will post to 
the BMF as a TC 150. The EPMF TC 154 is an 
information transaction indicating that the 5330 posted to 
the BMF. 
155 E 1st 
Correspondence 
Letter sent 
30, 37, 38 EPMF First Correspondence letter. Posts to EPMF to 
Bypass delinquency 
156 E Subsequent 
Correspondence 
sent 
30, 37, 38 EPMF Second Correspondence letter. Posts to EPMF to 
Bypass delinquency. 
157 E Schedule A 30, 37, 38 Received by EPMF through S.C. GPP for forwarding to 
Dept. of Labor, not posted to EPMF. 
157 B Form 5578 
Non-
Discrimination 
Certification 
84 Posted to indicate input of Form 5578 
159 I Settlement Data Generated 
Transaction 
Designates data as a Settlement Section of Return. Such 
data is dropped as soon as the return is settled. Does not 
appear on outputs. 
160 Debit 
(NPJ) 
B Manually  
Computed Delin­
quency Penalty 
47, 54 A Delinquency Penalty Assessment manually computed 
by Audit or Collection. Penalty is not recomputed by 
computer. 
161 Credit 
(NPJ) 
I/B Abatement of 
Delinquency  
Penalty 
47, 54 Abates previously posted 160, 166 Delinquency Penalty 
liability assessment in whole or in part. Penalty is not 
recomputed by computer. 
162 I/B Failure to File 
Penalty 
Restriction 
Deletion 
47, 54 Removes restriction on computation of FTF Penalty on 
previously posted TC 160 or 161. Causes recomputation 
and allows normal computation of FTF Penalty. 
166 Debit I/B Delinquency Generated Computer generated assessment of Delinquency Penalty 
Any line marked with # is for official use only  

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Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
(NPJ) Penalty Transaction on returns posted after the due date without reasonable 
cause and for returns containing penalty-interest codes 1 
(if Condition Code R not present) or 2; penalty is 
computed on the assessment tax less pre-payments. IMF 
only: Penalty may also be generated from amounts 
recorded on returns. 
167 Credit 
(NPJ) 
I/B Abate 
Delinquency 
Penalty 
Generated 
Transaction 
Abates a previously assessed TC 166 when change 
occurs in return due date or tax due at due date. 
170 Debit 
(NPJ) 
I/B Estimated Tax 
Penalty 
IMF: 11, 12, 
21, 22, 
BMF: 10-14 
Both: 17, 18, 
24, 47, 51, 54 
Computer generated self-assessment from TC 150 or 
manually assessed. ES penalty for failure to make 
adequate ES payments. Applicable to Form 990C, 1040, 
1041, 990T, 990PF and 1120, except on Adjustment or 
Revenue Receipt input. 
171 Credit 
(NPJ) 
I/B Abatement of 
Estimated Tax 
Penalty 
24, 47, 48, 54 Abates previously posted 170 or 176 Estimated Tax 
Penalty in whole or in part. 
176 Debit 
(NPJ) 
I/B Estimated Tax 
Penalty 
Generated 
Transaction 
Computer-generated assessment of 990C, 1040, 1041, 
990T, 990PF and 1120 Estimated Tax Penalty for failure 
to make adequate ES payments. 
177 Credit 
(NPJ) 
I/B Abatement of 
Estimated Tax 
Penalty 
Transaction 
Generated Abates a previously assessed TC 176. Issues Adjustment 
Notice. 
180 Debit 
(NPJ) 
B Deposit Penalty 11, 17, 18, 20, 
24, 25, 38, 40, 
41, 43, 47, 48, 
51, 54, 58 
47, 54 
A manually assessed or generated from TC 150 input 
penalty for insufficient and/or untimely deposit of taxes 
(FTD) (720, 940, 941, and 943, 945 and 1042, CT-1). 
181 Credit 
(NPJ) 
B Deposit Penalty 
Abatement 
Abates a previously assessed 180, 186 Deposit Penalty 
in whole or in part. 
186 Debit 
(NPJ) 
B FTD (Deposit) 
Penalty 
Assessment 
Generated 
Transaction 
Computer generated FTD Penalty if taxpayer fails to 
make timely and sufficient payments as required by 
regulations on Forms CT-1, 720, 940, 940EZ, 941, 943, 
945 and 1042. 
187 Credit 
(NPJ) 
B Abatement of 
FTD Penalty 
Assessment 
Generated 
Transaction 
Abates a previously assessed TC 186. Issues Adjustment 
Notice. 
190 Debit 
(PJ) 
I/B Manually 
Assessed 
Interest 
Transferred In 
51 Manually computed interest assessed prior to transfer in. 
Is input only as part of an account transferred in. See TC 
370. 
191 Credit 
(NPJ) 
I/B Interest 
Abatement 
51, 52 Abates TC 190 interest; input only as a part of an account 
transferred in. See TC 370. 
196 Debit 
(NPJ) 
I/B Interest 
Assessed 
Generated 
Transaction 
Computer generated interest that is due: at First Notice 
time; upon issuance of an Account Adjustment Notice 
resulting from posting of TC 290/300; posting of TC 680 
(Designated Payment of Interest), or if a credit condition 
exists in the module: at TDA time; and upon issuance of 
Credit Reversal Notice (CP 60). 
197 Credit 
(NPJ) 
I/B Abatement of 
Interest 
Assessed 
Transaction 
Generated Abates previously posted 190 or 196 interest 
assessments. TC 197 is generated when postings cause 
the interest assessed to exceed interest due (example: 
Abatement of tax liability). In addition, TC 197 is 
generated (as necessary) when a TC 682 is posted. 
200 Debit 
(NPJ) 
I Taxpayer 
Identification 
Number Penalty 
Assessment 
IMF: 11, 12, 
21, 22 
Both: 17, 18, 
24, 47, 54, 58 
Assess penalty against taxpayer for failure to furnish 
requested identifying numbers. 
201 Credit 
(NPJ) 
I Taxpayer 
Identification 
47, 54 Abates a previously assessed TC 200 penalty in whole or 
in part. 
Any line marked with # is for official use only  

PDF page 10

8A-10  
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
Number Penalty 
Abatement 
234 Debit 
(NPJ) 
B Assessed Daily 
Delinquency 
Penalty 
47, 54  
BMF: 81, 90, 
91 
Manual assessment or generated from TC 150 input of 
$20 Daily Delinquency Penalty to maximum of $10,000.   
235 Credit 
(NPJ) 
B Abates Daily 
Delinquency 
Penalty 
47, 54 Abates previously assessed TC 234/238 penalty in whole 
or in part. 
238 Debit B Daily 
Delinquency 
Penalty 
Generated 
Transaction 
Computer generated assessment of $20 Daily 
Delinquency Penalty to a maximum of $10,000 from 
return.      
239 Credit 
(NPJ) 
B Abatement of 
Daily 
Delinquency 
Penalty 
Generated 
Transaction 
Abates a previously assessed TC 238. Also if module 
contains a TC 234 amount for less than a previously 
posted TC 238, TC 239 is generated in amount of 
difference and TC 234 is dropped; if greater, TC 239 is 
generated for TC 238 amount and TC 239 and TC 234 
are posted. 
240 Debit 
(NPJ) 
I/B A Assessment of 
Miscellaneous 
Civil Penalty 
47, 54, 51 
Computer generated TC 240 post to a tax module 
when a miscellaneous type penalty is assessed 
(i.e., other than those penalties which are identified 
with their own TC or reference no.).  See Section 
11.10(6) for appropriate Penalty Reference 
Numbers.
 
241 Credit 
(NPJ) 
I/B Abatement of  
Miscellaneous 
Civil Penalty 
47, 54 Computer generated TC 241 post to a tax module 
when a previously assessed miscellaneous type 
penalty is being partially or completely abated.  Also 
abates TC 246 for MFT 06 (Form 1065, BMF only).
 
246 Debit B 8752 or  
1065 Penalty 
Generated 
Transaction 
Failure to provide information penalty on 1065 or 8752, 
generated when a Form 1065 or 8752 is incomplete. 
Also, failure by large partnerships to file electronically - 
identified by Reference No. 688. 
247 Credit B Abatement of 
1065 Penalty 
Generated 
Transaction 
Abates a previously assessed TC 246 when a timely 
credit posts to a BMF module. 
270 Debit 
(NPJ) 
I/B  Manual 
Assessment 
Failure to Pay 
Tax Penalty 
17, 18, 24, 47, 
48, 54 
Manual computed Failure to Pay Tax Penalty assessed if 
return liability and/or Examination/DP tax adjustment is 
not paid on or before date prescribed for payments. 
BMF/IMF: Restricts penalty computation for this module. 
Condition code “Z” input with TC 150 generates a TC 270 
for zero amount (IMF only). 
271 Credit 
(NPJ) 
I/B  Manual 
Abatement of 
Failure to Pay 
Tax  
Penalty 
47, 54 Manual abatement of previously “net assessed” FTP 
Penalty (TC 270/276) in whole or in part. Restricts penalty 
computation for the module unless input with Reason 
Code 62. 
272 I/B/A  Failure to Pay 
Penalty 
Restriction Dele-
tion 
47, 54 Removes restriction on computation of FTP Penalty on 
previously posted TC 270 or 271. Causes recomputation 
and allows normal computation of Failure to Pay Penalty. 
276 Debit 
(NPJ) 
I/B Failure to Pay 
Tax Penalty 
Generated 
Transaction 
Computer-generated FTP Penalty assessed if return 
liability and/or Examination/DP Adjustment is not paid on 
or before date prescribed for payment. 
277 Credit 
(NPJ) 
I/B Abatement of 
Failure to Pay 
Tax Penalty 
Generated 
Transaction 
Computer-generated abatement of “net assessed” FTP 
Penalty (TC 276) in whole or part. 
280 Debit 
(NPJ) 
I/B Bad Check 
Penalty 
18, 24, 45, 54, 
58, 87 
Manually computed bad check penalty  assessment (may 
be with a zero amount). 
The penalty is two percent (2%) of the amount of the 
dishonored payment, or if the amount of the dishonored 
Any line marked with # is for official use only 

PDF page 11

8A-11
 
 
 
 
 
   
 
   
 
 
 
   
 
 
 
 
   
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
payment is less than $1,250, then the penalty is the 
lesser of $25 or amount of the payment.   
Effective July  2, 2010, the penalty now  includes all 
“instruments” (forms) of payment  
For dishonored checks or money  orders received after 
May 25, 2007, and prior to July 2, 2010, the bad check 
penalty was only applicable to paper checks and money  
orders. The penalty was two percent (2%) of the amount 
of the dishonored payment, or if the amount of the 
dishonored payment was less than $1,250, then the 
penalty was the lesser of $25 or the amount of the 
payment. No penalty w as assessed on checks less than 
$5.00. See IRM 20.1.10 Miscellaneous Penalties. 
281 Credit 
(NPJ) 
I/B Abatement of 
Bad Check 
Penalty 
47, 54 Abates previously posted 280 or 286 transaction in whole 
or in part. Will post prior to return (Account with no TC 
150) if it is the only transaction with the TC 290 and there 
is an unreversed TC 280 or TC 286 of equal or greater 
amount in the module. 
286 Debit 
(NPJ) 
I/B Bad Check 
Penalty 
Systemically 
Generated 
Transaction 
Systemically generated bad check penalty assessment 
initiated by the posting of any of the following TC 
reversals: 611, 621, 641, 651, 661, 671, 681, 691, or 721. 
The penalty is two percent (2%) of the amount of the 
dishonored payment, or if the amount of the dishonored 
payment is less than $1,250, then the penalty is the 
lesser of $25 or the amount of the payment.  Effective 
July 2, 2010, the penalty now includes all “instruments” 
(forms) of payment.  
For dishonored checks or money orders received after 
May 25, 2007, and prior to July 2, 2010, the bad check 
penalty was only applicable to paper checks and money 
orders. The penalty was two percent (2%) of the amount 
of the dishonored payment, or if the amount of the 
dishonored payment was less than $1,250, then the 
penalty was the lesser of $25 or the amount of the 
payment.  No penalty was assessed on checks less than 
$5.00.  See IRM 20.1.10 Miscellaneous Penalties. 
287 Credit B Reversal of Bad 
Check Penalty 
Systemically 
Generated 
Transaction 
Systemically reversed any posted, unreversed TC 
280/286 when the module status is: “06” with a debit 
balance and the net TC 28X amount equals the module 
balance. 
290 Debit 
(NPJ) 
I/B Additional Tax 
Assessment 
54 Additional tax as a result of an adjustment to a module 
which contains a TC 150 transaction. TC 290 with zero 
amount or TC 29X with a Priority Code 1 will post to a —L 
freeze module. Generates assessment of interest if 
applicable (TC 196).  
Releases the following freezes: O—Reactivated Account, 
—A Duplicate Return, —K Refund Hold, W—470 hold, — 
R 570 hold, —F Advanced Payment, —X Manual Refund, 
P—841/720, —G Math Error, —J Math Error/TDA, R— 
RPS, B— Subsequent Payment, —Q WPT, 680 Hold 
(See Freeze Code Section for specific conditions).  
TC 290 with zero amount blocked 96X indicates a 
taxpayer penalty abatement request was considered and 
rejected. 
Reversal is TC 290 blocked 97X. Can be used for Civil 
Penalty assessments on MFT 30, 55, and 13. 
IMF: Additionally releases 680 hold and freezes for 
Invalid SSN or Account Reactivation. Needs reason and 
source codes. May need priority and/or hold codes.  
290 Debit I/B Additional Tax 54 BMF: Releases freezes for 842. TC 290’s, MFT 10, 
Any line marked with # is for official use only  

PDF page 12

 
 
 
 
 
 
 
 
 
  
8A-12
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
(NPJ) Assessment Blocking Series 500-519, have been designated for FUTA  
use only. A Reference Code of 998 or 999 is generated 
by BMF files respectively from Alpha Code “T” or “W” 
along with a valid state code on FUTA Adjustments. May  
need priority and/or hold codes.  
IMF: If a TC 888 is input without a TC 886, and the 
Taxable Income (TXI) on the tax module is greater than 
.00, then the TXI is automatically adjusted by the TC 888 
amount. The TXI on the module will not be adjusted 
below zero.  
TC 290 blocked 180-198, 780-789, 960-969 or 980-989 
(MFT 55: Blocking Series 530-539, 960-969, and 980­
989. Exception: prior control is doc code 54 blocked 59X), 
will generate a CP55 Notice to Re-file Return.    
Re: Form 1042, 290-to increase tax liability no reference 
number is used, 291-to decrease tax liability  no reference 
number is used, 150-reference number “011” to update 
the gross income paid See section 8 for credit reference 
adj. codes. 
291 Credit 
(NPJ) 
I/B Abatement Prior 
Tax Assessment 
54 Abates a previously posted 150 and/or 290 or 300 in 
whole or in part.  
Generates abatements (TC 197) of computer-generated 
interest where applicable. 
Releases same freezes and holds as TC 290. TC291’s, 
MFT 10, Blocking Series 500-519, have been designated 
for FUTA use only. A Reference Code of 998 or 999 is 
generated by BMF files respectively from Alpha Code “T” 
or “W” along with a valid state code on FUTA 
Adjustments. May need priority and/or hold codes. IMF 
needs reason and source codes. 
294 Debit 
(NPJ) 
I/B Additional Tax 
Assessment with 
Interest 
Computation 
Date 
54 Used to adjust a previously posted tentative allowance 
(e.g. TC 295 or 305), contains a beginning interest 
computation date, and can carry TC 290, 291 or penalty 
code. To post, a TC 295 or 305 must be present in the 
module and the TC 294 amount cannot exceed the TC 
295 or 305 amount. Otherwise, same as TC 290. 
Blocking Series 900-909 will generate a CP 55. 
295 Credit 
(NPJ) 
I/B Abatement of 
Prior Tax 
Assessment with 
Interest 
Computation 
Date 
54 Used to input a tentative allowance, contains a beginning 
interest computation date, and can carry TC 290, 291 or 
penalty code. Otherwise same as TC 291. Will post to 
module even if AIMS Indicator (TC 420) is on.  
IMF: Will resequence until interest computation date is 
earlier than current 23C date.  
BMF: Will unpost (UPC 497, RC2) with secondary TC 
date later than current 23C date. Valid with tax class 2 or 
3 only.  
Form 1045, Application for Tentative Refund, is used by 
taxpayers.  
Form 1139, Corporation Application for Tentative Refund, 
is used by corporations. Claims refund from carryback of 
a net operating loss, unused general business credit, 
unused research credit, net capital loss or overpayment 
of tax due to a claim or right adjustment under section 
1341(b)(1) or 6411; Regs. Sec. 1.6411-1. Blocking Series 
900-909 will generate a CP 55.  
298 Debit 
(NPJ) 
I/B Additional Tax 
Assessment with 
Interest 
Computation 
Date 
54 Used to input an additional assessment of tax to a 
module which contains a TC 150. Generates assessment 
of interest from the interest computation date which must 
be included in the transaction. 
BMF: Can be used with another tax adjustment code on 
the same document (record) i.e., TC 290 or 291, but is 
Any line marked with # is for official use only  

PDF page 13

8A-13
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
not acceptable with TC 294 or 295. Can also be used  with 
penalty codes and interest codes. Otherwise same as TC  
290. IMF: Cannot be used with other tax and interest 
transaction codes, but may be used with penalty codes. 
Otherwise same as TC 290. 
299 Credit 
(NPJ) 
I/B Abatement of 
Prior Tax 
Assessment 
Interest 
Computation 
Date 
54 Used to input an abatement of tax to a module which 
contains a TC 150.  
Generates abatement of interest and FTP penalty from 
the interest computation date which must be included in 
the transaction. BMF: Can be used with another tax 
adjustment code on the same document (record) but is 
not acceptable with TC 294 or 295. Can be used with 
penalty codes and interest transaction codes. Otherwise 
same as TC 291.  
IMF: Same as TC 291. Will resequence until interest 
computation date is earlier than current 23C date.  
BMF: Will unpost (UPC 497, RC2) with secondary TC 
data later than current 23C date.  
300 Debit 
(NPJ) 
I/B Additional Tax or 
Deficiency 
Assessment by 
Examination 
Division or 
Collection 
Division 
47 Assesses additional tax as a result of an Examination or 
Collection Adjustment to a tax module which contains a 
TC 150 transaction. Generates TC 421 to release 42 Hold 
if Disposal Code 1-5, 8-10, 12, 13, 34 and TC 420 or 424 
present. If TC 420 or 424 is present, TC 421 is generated 
when disposal code of 1-4, 8-10, 12 (only if Appellate 
Code is 000 or if TC 300 blocked 700-799) 13, or 34.  
Releases freezes for 640, 720, 840 or 841. IMF: 
Additionally releases TC 680 hold and freezes for Invalid 
SSN or Account Reactivation. Blocking Series 790-799 or 
900-999 will generate a CP 55.  
BMF: Releases freezes for Joint Committee or TC 842. 
301 Credit 
(NPJ) 
I/B Abatement of 
Tax by 
Examination or 
Collection 
Division 
47 Abates a previously posted TC 150, 290 and/or 300 in 
whole or in part.  
Generates abatements of computer generated interest 
where applicable. (TC 197 or 337) Releases same 
freezes and holds as TC 300. Blocking series 790-799 or 
900-999 will generate a CP 55. 
304 Debit 
(NPJ) 
I/B Additional Tax or 
Deficiency 
Assessment by 
Examination 
Division with 
Interest Compu­
tation Date 
47 
305 or 295), contains a beginning interest computation 
date. 
To post, a TC 305 or 295 must be present in the module 
and the TC 304 amount cannot exceed the TC 305 or 
295. Otherwise, same as TC 300. 
Adjusts a previously posted tentative allowance (e.g., TC 
305 Credit 
(NPJ) 
I/B Abatement of 
Prior Tax 
Assessment by 
Examination 
Division with 
Interest Compu­
tation Date 
47 Inputs a tentative allowance, contains a beginning interest 
computation date. Otherwise, same as TC 301. Valid with 
Tax Class 2 and 3 only. 
308 Debit 
(NPJ) 
I/B Additional Tax or 
Deficiency 
Assessment by 
Examination Div. 
with Interest 
Computation 
Date as a Result 
of CB/CF. 
47 Inputs an Examination Deficiency of tax to a module 
which contains a TC 150.  
Generates assessment of interest from the interest 
computation date which must be included in the trans-
action. 
BMF—Can be used with another tax adjustment code, 
except TC 304, 305 or 309. Can be used with penalty and 
interest transactions. Otherwise same as TC 300. IMF— 
Cannot be used with other tax transaction codes, but may 
be used with interest and penalty codes. 
Any line marked with # is for official use only  

PDF page 14

8A-14
 
 
 
  
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
308 Debit B Additional Tax or 
Deficiency 
Assessment by 
Examination or 
Collection 
Division with 
Interest 
Computation 
Date 
47 Input on Examination Deficiency on Employment tax 
module in which interest is restricted due to IRC Section 
6205. 
309 Credit 
(NPJ) 
I/B Abatement of 
Prior Tax 
Assessment by 
Examination Div. 
with Interest 
Computation 
Date 
47 Used to input an Examination Overassessment of tax to a 
module which contains a TC 150. Contains an interest 
computation date which must be included in the 
transaction and generates abatement of interest from that 
date. Cannot be used if the amount of tax in the module is 
smaller than the amount on the Form 2285 that could be 
input with TC 309.  
BMF—Can be used with another tax adjustment code, 
except TC 304 or 305 on same document i.e. TC 300 or 
301. Can be used with penalty and interest transactions. 
IMF—Cannot be used with other tax transaction codes, 
but may be used with interest and penalty codes. 
310 Debit 
(NPJ) 
I Penalty for 
Failure to Report 
Income from 
Tips 
47, 54 Assesses penalty for taxpayer’s failure to report Tips 
Income. 
311 Credit 
(NPJ) 
I Tip Penalty 
Abatement 
47, 54 Abates previously posted unreversed TC 310, in whole or 
in part. 
320 Debit 
(NPJ) 
I/B Fraud Penalty 47, 54 Assesses Fraud Penalty. 
BMF/IMF: Restricts FTP Penalty on Fraud Penalties 
assessed under IRC 6653(b) for returns due before 
1/1/1989. 
321 Credit 
(NPJ) 
I/B Abatement of 
Fraud Penalty 
47, 54 Abates a previously posted 320 transaction in whole or in 
part. BMF/IMF: Releases restriction on FTP Penalty. 
336 Debit 
(NPJ) 
I/B Interest 
Assessment on 
Additional Tax or 
Deficiency  
Generated 
Transaction  
Assess computer-generated interest on additional tax or 
deficiency assessed upon posting of an Examination 
Adjustment (TC 300 with Doc. Code 47) and issuance of 
the adjustment notice. 
337 Credit 
(NPJ) 
I/B Abatement of 
Interest 
Assessed on 
Additional Tax or 
Deficiency  
Generated 
Transaction 
Abates previously posted 190, 196 or 336 interest 
assessment in whole or in part. Computer-generated 
when an Examination Adjustment TC 301 posts. 
340 Debit 
(NPJ) 
I/B Restricted 
Interest 
Assessment 
IMF: 11, 12, 
21, 22, 47 51, 
54 IRAF/BMF: 
47, 54 
Restricted interest which must be manually computed.  
IMF/BMF. CAUTION: After posting, interest is not 
computed or abated by computer for the applicable Tax 
Module and assessed interest thereafter must be 
computed manually and input with a TC 340 or 341. 
TC34X inputs posting after 010195 will allow the accruals 
of interest to be non-restricted from the “Interest To Date” 
of the AMCLS or ADJ54 action unless a reference 
number 221 or 222 is included with the action.  
IMF: TC 150 with Condition Code Z generates TC 340 for 
zero amount, turns on debit restricted interest indicator 
and restricted FTP penalty indicator. TC 500 generates 
TC 340. 
341 Credit 
(NPJ) 
I/B Restricted 
Interest 
Abatement 
47, 54 Abates a previously posted TC 190, 196, 340 or 336 in 
whole or in part.  
CAUTION: After posting, interest cannot be assessed or 
abated by computer for the applicable Tax Module and 
assessed interest thereafter must be computed manually 
Any line marked with # is for official use only  

PDF page 15

8A-15
 
 
 
 
 
 
 
 
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
and input with a TC 340 or 341.  
TC34X inputs posting after 01011995 will allow the 
accruals of interest to be non-restricted from the “Interest 
To Date” of the AMCLS or ADJ54 action unless a 
reference number 221 or 222 is included with the action. 
342 I/B Interest 
Restriction 
Deletion 
47, 54 Removes restriction on the computer computation of 
interest set by  a previously posted TC 340 or 341, and 
allows the computer to recompute normal interest. TC  
342 may not be input without first securing the source 
document for the TC 340/341 and making the 
determination that the TC 340/341 was unnecessary. Can 
only be input for 0 amount. CAUTION: TC should not be 
used without first determining interest should not be 
restricted. 
350 Debit 
(NPJ) 
I/B Negligence  
Penalty
I/B: 11, 12, 
 21, 22 
All: 47, 54 
Assesses all types of negligence penalties.  
351 Credit 
(NPJ) 
I/B Negligence 
Penalty 
Abatement 
47, 54 Abates a previously posted TC 350 in whole or in part. 
360 Debit 
(NPJ) 
I/B Fees and 
Collection Costs 
17, 18, 24, 48, 
54, 58 
Assesses legal fees, security and sale cost, lien fees and 
other expenses incurred while enforcing collection of 
delinquent balance due for the Tax Module.  
361 Credit 
(NPJ) 
I/B Abatement of 
Fees and 
Collection Costs  
54 Abates a previously posted 360 transaction in whole or in 
part. 
370 Debit 
(PJ) 
I/B Account 
Transfer-in 
I/B: 52 All: 51 Transfers a tax module from Retention Register to Master 
File. Posts all accompanying transactions input as a part 
of the transaction. This transaction inputs assessments, 
abatements, credits and debits which are being 
transferred to an account on the MF. The list of valid 
transactions are listed in IRM 3.17.21. Doc. Code 51 
includes all prompt, quick and jeopardy assessment 
transactions. If transaction goes unpostable with UPC 
171, Master File will not show  TC 370. 
380 Debit 
(PJ) 
I/B Overpayment 
Cleared 
Manually (Under 
$1) 
51 Manual Clearance of overpayment for less than $1.00. 
Input only as a part of an Account transferred in; see TC  
370. 
386 Debit 
(NPJ) 
I/B Clearance of 
Overpayment 
Generated 
Transaction 
Computer generated debit which equals a credit net 
balance of less than $1.00. Clears Module Balance so 
refunds, offsets, or freezes cannot be made in amounts 
less than $1.00. 
388 Debit 
(NPJ) 
I/B Statute 
Expiration 
Clearance to 
Zero Balance 
and Removal 
Generated 
Transaction 
Zero balances and removes a tax module which is past 
its Statutory Expiration Date and not subject to specific 
module retention holds. Contains the credit balance of the 
module. Writes off interest amounts present.  
389 Credit 
(NPJ) 
I/B Reversal of 
Statute 
Expiration 
Generated 
Transaction 
Reverses TC 388. Generated when TC 370 with Doc. 
Code 52 is processed.  
IMF only: Generated from automatic re-established on 
Tax Modules. 
400 Credit 
(NPJ) 
I/B Account 
Transfer-Out 
51 or 
Generated 
Transaction 
Transfer accounting control out of the Master File. Can be 
reversed by  input of TC 370 with secondary TC 402. After 
posting, all subsequent transactions (except TC 370 with 
secondary TC  402) are unpostable. Also generated when  
an attempt is made to post to a tax module with maximum  
transactions. 
IMF: Can be computer generated if tax module 
transaction section has exceeded maximum posting size. 
Any line marked with # is for official use only  

PDF page 16

8A-16
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
BMF: Will generate TC 400 if tax module transaction 
section has an overflow condition after normal and/or 
special consolidation analysis has been performed. 
Identified by blocking series 999. Generates CP296. 
402	 Debit 
(PJ) 
I/B Account Re­
Transferred-In 
51 Valid only as the first secondary transaction to TC 370. 
Reestablishes an Account Transferred-Out by debiting 
the Tax Module. Transaction date and amount are 
determined from the last posted TC 400.  
420	 I/B/E Examination  
Indicator 
29, 77 Computer generated at SC when opening record is 
posted. Can be input on Form 3177. Indicates that return 
has been referred to the Examination or Appeals Division. 
Generally, if TC 420 is unreversed, TC 290, 291, 298 and 
299 will unpost unless Priority Codes 1, 5, 6, 7, or 8 
 present. (See UPC 160, 330) Module will not be removed 
from MF. TC 290 with zero amount, 294 or 295 will post. 
(TC 294, 295, 298, 299-BMF/IMF only.) The return has 
been assigned in the Examination or Appeals Division. 
421	 I/B 
E 
 Reverse 
Examination 
Indicator 
47, 77 or 
Generated 
Transaction 
Generated at MCC when TC 300 posts with a Disposal 
Code of 1-5, 8-10, 12, or 34 to module and an unreversed 
 TC 420, or 424 is present. Can be input directly with Doc. 
47 or on Form 3177. Reverses TC 420 or 424.  
424	 I/B/E Examination 
Request 
Indicator 
77 Return referred to Examination or Appeals Division. 
Generates Examination opening inventory information. 
Deletes record, if present, from DIF file. This transaction 
 can also be generated for IMF when an IRP 
Underreported Case is referred to Exam. Generated as a 
result of input through PCS 
425	 I  Reversed TC 
424 
 Generated 
Transaction 
A TC 424 which was reversed. 
427	 B Requests 
Returns from 
SERFE file 
77 Requests blocks or return from the SERFE file 
428	 I/B/E Examination or  
Appeals Case 
Transfer 
Generated 
Transaction 
Updates the AIMS Control Number D.O. or SC Code on 
unreversed TC 420 or 424. Does not post to the IMF or 
BMF as a transaction. Generated when an Examination 
or Appeals Division case transfer is entered on the AIMS 
terminal. Contains the DO or SC code to which the case 
is being transferred. CC 89 allows refund & credit elect 
but prevents offset. 
429	 I/B Request AIMS 
Update from MF 
77 Request that an update record reflecting current MF 
information be sent to the AIMS data base. Does not post 
to MF. Also used to release tax shelter freeze (–E). 
430	 Credit 
(PJ) 
I Estimated Tax 
Declaration 
20, 61 Posts to the MF and establishes a tax module, if 
 necessary, to record ES tax payment. Reversed by TC 
661 or 662. 
430	 I  Entity Created by 
TC 430 
Generated 
Transaction 
  Indicates that the Master File Entity was created from the 
posting of the ES payment. Posts to the Entity. 
431 Obsolete 
432 I Entity Updated 
by TC 430 
Generated 
Transaction 
Designates an Estimated Tax Declaration which updated 
Entity Data and is posted to the Entity Transaction 
Section. 
446	 I/B 
E 
Merged 
Transaction 
Indicator 
Generated 
Transaction 
Posts to the MF module which receives the merged 
transactions from the module which is dissolved. 
Contains current cycle and a list of the transactions 
merged in the cycle the TC 446 posts. The transactions 
contain a cycle prior to that of the TC 446. 
450	 Debit 
(PJ) 
I/B Transferee 
 Liability 
Assessment 
May be posted as part of 370 transaction only. 
Any line marked with # is for official use only  

PDF page 17

  
 
 
 
8A-17
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
451 Credit 
(PJ) 
I/B Reversal of TC 
450 
Abates previously posted TC 450 in whole or in part. 
Posted as part of 370 transaction only. 
459 B Prior Quarter 
Liability, Forms  
941 and 720 
Generated  
Transaction 
Records the liability of the immediately prior quarter for 
use in assessing FTD penalty. MCC generates the 
transaction when the 150 return attempts to post. 
460 I/B 
P 
Extension of 
Time for Filing 
All: 77 
I/B 17, 19 
B: 04, 
Generated  
Transaction 
P:64 
B/19 
E: 77 
Doc. Code 77: IMF-Form 4868 extension for other than 
automatic 6 months and Form 2350.  Form 4868 with 
international FLC (20, 21,66 and 98) in DLN maximum 
extension to 12/15/YYYY (U.S. citizens who live and work 
or serve in the military abroad).  International DLN with 
Blocking range 400-499 indicates Form 2350.  Form 2350 
maximum extension to RDD plus 11 1/2 months. 
BMF-Forms 7004/8868/5558/8892. Establishes a Tax 
Module, updates Status to 04, and updates related filing 
requirements except for Forms 706 and 709. Applies to 
706-GS(D), 706-GS(T), 1041, 1041-N, 1041-QFT, 1042, 
1065, 1065-B, 1120 series, 3520-A, 8612, 8804, 5330, 
990, 990-EZ, 990-BL, 990-PF, 990-T series, 1041-A, 
4720, 5227 and 709.  
Doc. Code 17, 19 AUTOMATIC EXTENSION FORM 
4868 IMF ONLY. TC 460 as a secondary transaction with 
TC 670 indicates approved automatic extension. TY 2006 
and subsequent, generates Extended Due Date to 
October 15 (i.e. RDD plus six months). 
BMF: Generated when TC 670 with Secondary TC 460 is 
input to MFT 51 module. Extended due date on 
generated TC  460 is October 15 of the following year (i.e. 
RDD plus six months). Also generated  when qualifying 
Doc Code 04: Generated when approved extension TC  
620 posts to MFT  
02/05/06/07/08/12/33/34/36/37/42/66/67/76/77/78, 
Exception: MFT 05 (Form 1041 only), MFT 06 (Form 
1065 only) and MFT 08, Generated Extended Due Date 
to RDD plus 5 months for Tax Period 200809 and later. 
For MFT 36/37/44/67, first approved extension generated 
Extended Due Date to RDD plus 3 months; second  
approved extension generates Extended Due Date to 
RDD plus six months. 
EPMF: Doc Code 77 Form 5558 MFT 74 posts to EPMF. 
462 I/B/E Correction of a 
TC 460 
Transaction Pro-
cessed In Error  
77 Corrects erroneous posting of TC 460 by re-establishing 
the due date and restoring prior status. Zero the FRC for 
any MFT where: a) a TC462 reversed an erroneous TC  
460 which established the tax module; and, b) the TCs 
460/462 are the only TCs posted to the module; and, c) 
after posting the TC 462, the Status updates to “00”. 
463 B Waiver to file on 
mag. tape 
77 Taxpayer claims hardship to file information documents 
on magnetic tape. TC 463 provides a waiver for allowing 
submission of paper documents. 
464 B Reversal of TC 
463 
77 Reverses TC 463 to allow submission of paper 
documents. 
468 B Extension of 
Time to Pay  
Estate Tax  
77 Allows IDRS to recognize an extended payment date and 
may post before or after the TC 150 posts.   
This extension (Form 4768) give the taxpayer relief from 
the failure to pay  penalty (but NOT from interest) from the 
return due date until the approved extended payment 
date. It is only  applicable for Form 706 (MFT 52 and 53).  
Approved Forms 4768 will reflect an extended due date 
for payment of tax.  Disapproved Forms 4768 will reflect 
last due date for payment of tax.   
CSED will be updated based on approved extension 
Any line marked with # is for official use only 

PDF page 18

8A-18
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
dates (see IRC 6503(d)).   
IDRS will allow more than one TC 468 and will recognize 
the last one input to the module. Closing codes will 
reflect the following: 
ƒ CC01 = denied extension on TC 150 assessment 
ƒ CC02 = extension on TC 300 assessment 
ƒ CC03 = denied extension on TC 300 assessment 
ƒ CC04 = Appeals case 
469 B	 Reversal of TC  
468 
77 Corrects erroneous posting of TC 468 by re-establishing 
the payment due date and restoring prior status.  TC 469 
will reverse only the last TC 468 input. 
470 I/B	 Taxpayer Claim 
Pending 
77 See TC 470 Closing Code Chart (Chapter 11) for Closing 
Code Activity.  Prevents notices from going out. TC 470, 
CC 97 post to entity  also. 
471 I/B	 Reversal of  
Taxpayer Claim 
Pending 
51, 52 When posted, no reversing action is taken. It is treated as 
a TC 472 when analysis of the account is made. 
472 I/B	 Reversal of  
Taxpayer Claim 
Pending 
24, 48, 77 Records that a TC 470 was processed in error. Reverses 
TC 470. Input of Collection Closing Code 99 is required to 
reverse a TC 470 with Closing Code 99.  
IMF: Permits normal issuance of TDA whenever no 
adjustment is to be input. Closing Code 94, 95 or 96, 98, 
99 required to reverse TC 470 CC 94, 95 or 96, 99 
respectively. Closing Code 98 required to reverse TC 470 
CC 98. Next notice or TDA issued is dependent on the 
status when TC 470 was input to module. 
474 I/B/E	 Interrupts 
Normal 
Delinquency 
Processing 
49, 77 Creates unscheduled delinquent return period on ECC 
Master File or to prevent IDRS Delinquency notice or TDI 
issuance for specific Delinquent Return notice status 
period present on IDRS Taxpayer Information File (TIF). 
Establishes tax module; posts status 02 with status 
indicator “C” to module when  established or if module has 
status less than 02. 
BMF or EPMF delinquency check will issue Compliance 
for 02 “C” Status Period on first check made after TC 474 
is reversed or after number of cycles (input with TC 474) 
has expired since posting. Expiration of TC  474 delay  
(number of input cycles) or reversal of TC 474 will cause 
the module to revert to the prior TDI notice status and 
continue TDI processing. Use TC590 & reverse with  
TC592 to force account into TDI status. 
475 I/B/E	 Permits TDI  
Issuance 
49, 77 Reverses TC 474. 
480 I/B	 Offer-in-
Compromise 
Pending 
77 Module Notice Transcript “OIC”. A change in module 
balance during a posting cycle will cause a Module Notice 
Transcript “OIC”. Posting of TC 788, generates an “OIC”. 
Notice Transcript and then discontinues further issuance 
of an “OIC” Notice Transcript. Tax Modules are frozen 
from offsetting out (IMF only) and refunding. Suspends 
Assessment and Collection Statute Expiration Dates. 
Jurisdictional Codes: 1=DO  Collection; 2=Examination; 
3=Appeals; 9=SC Collection 
481 I/B	 Offer-in-
Compromise 
Rejected, 
Returned 
(Processable) 
77 Records date of rejection and return of termination of 
offer. Does not extend TFRP Assessment Statute 
Expiration Date. Generates “OIC” transcript and 
discontinues further OIC transcripts. 
BMF/IMF: Extends Assessment and Collection Statute 
Expiration Dates. Over the years various changes in the 
tax law have had an effect on the statutory collection 
period. See IRM 5.8.10.7, Special Case Processing, for 
Any line marked with # is for official use only  

PDF page 19

8A-19
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
 additional guidance.  Releases TC 480 freeze. 
482 I/B Offer-in­
Compromise 
Withdrawn, 
Terminated 
77 Records date of withdrawal or termination of offer. Does 
not extend TFRP Assessment Statute Expiration Date. 
Generates OIC Transcript and discontinues further 
transcripts. 
BMF/IMF: Extends Assessment and Collection Statute 
Expiration Dates. Over the years various changes in the 
tax law have had an effect on the statutory collection 
period. See IRM 5.8.10.7, Special Case Processing for 
additional guidance.  Releases  TC 480 freeze. 
483 I/B Correction of 
Erroneous 
Posting of TC  
480, Returned 
(Not 
Processable) 
77 Records information that TC 480 OIC was posted in error, 
or returned because OIC was not processable. Does not 
extend Assessment and Collection Statute Expiration 
Dates, reverts to normal date. Generates OIC  Transcript 
but discontinues further OIC transcripts. 
488 B Installment 
and/or Manual 
Billing 
77 Updates Module status to “14”, deletes any TDA deferred 
actions pertaining to the module, and (on non cc “S” Form 
1041) establishes the appropriate deferred action to issue 
CP 191, on BMF.  
Note: Status “14” is released by zero or credit balance, a 
subsequent debit balance does not update status to “14”. 
(BMF - Form 1041 and 706). 
489 B Installment 
Defaulted 
77  Updates module status to “21”, delete any deferred action 
to issue CP 191 and go through TDA analysis. 
490 P Mag Media 
Waiver 
64 Shows that a waiver of magnetic media filing 
requirements was issued. 
494 B/I Notice of 
Deficiency  
77  Indicates that a Statutory Notice of Deficiency (90-day) 
was issued. Issuing Organization Code two position 
numeric only (70, 71, 84). CC: STN 90 
495 B/I  Closure of TC 
494 or correction 
of TC 494 
processed in 
error 
77  Closure of Notice of Deficiency or Notice of Deficiency 
processed in error. Issuing Organization Code two 
position numeric only (70, 71, 84). CC: STN 90 
500 I Military  
Deferment 
77  Suspends Collections Statute Expiration Date. New 
expiration date is input with TC 550. Hold is established if 
tax module balance is debit; hold is released when 
balance becomes zero or credit and when TC 502 or 550 
is posted. Generates TC 340 Valid CC 50 or 51. See 
Section 11 Collection, for appropriate closing codes. 
502 I Correction of TC 
500 Processed  
in Error 
77  Corrects an erroneously posted military deferment and 
restores the original Collection Statute Expiration Date. 
Releases Hold established by  TC 500. TC 502 does not 
release the interest and/or penalty freezes. A TC 290 
must be input with the appropriate TC. 
503 77 TC 500 changed to 503 when posting TC 502 
510 I Releases Invalid 
SSN Freeze on 
Refunds 
77 Releases invalid SSN freeze indefinitely, as long as 
SSN/Name Control remain unchanged. 
520 I/B IRS Litigation 
Instituted 
77 or 
Generated 
Transaction  
Freeze is released by TC 521 or 522. Some CCs 
suspend CSED. See Section 11.08(6). For IMF only an 
optional CSED  TIN indicator (P) Primary, (S) Secondary  
or (B) Both can be used to identify  which taxpayer the 
extension applies to. (See Section 11 for appropriate 
closing codes) 
521 I/B Reversal of 520 77  Records reversal of a previously posted TC 520. If TC 
520 posted prior to cycle 8624, TC 550 must be input to 
extend the CSED. Refer to section 11 for specific CC 
Any line marked with # is for official use only  

PDF page 20

8A-20
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
reversal activity. 
522 I/B Correction of 520 
Processed in 
Error 
77  Indicates and reverses previously posted 520’s as an 
error, and causes Closing Codes, if 70-89, to be updated 
to zeros. 
524  Collateral 
Agreement 
Pending 
Indicates that a Collateral Agreement is pending. 
Suspends Collection action (IDRS only—Does not post to 
master file) 
525 Collateral  
Agreement No 
Longer Pending 
Reverses TC 524. 
528 I/B  Terminate Stay 
of Collection 
Status 
Terminates the stay of collection status 41 or 42. When a 
TC 528 pends to a module, it comes out of status 41/42. 
New status is determined by status prior to 41/42. (IDRS 
only—Does not post to master file). 
530 I/B  Currently not 
Collectible 
Account 
77 A balance due account is considered currently not 
collectible. Closing Code is 01-39. (see Section 11 TDA 
Closing Codes for appropriate closing codes) TC 530 CC 
08 generates TC 540 and set the MFR to 8. 
531 I/B Reversal of a 
Currently not 
Collectible 
Account 
77 Indicates that the Account is now considered collectible. 
532 I/B Correction of 530 
Processed In 
Error 
77 Indicates the previously posted 530 is in error. 
534 Credit 
(PJ) 
I/B Expired Balance 
Write-off, 
accrued or 
assessed 
54 May be input for zero or with an amount. If input with an 
amount, it credits the tax module for the portion of 
assessed module balance on which the CSED has 
expired and restricts the computer from interest and 
Failure to Pay Penalty computations. 
535 Debit 
(PJ) 
I/B Reversal of 
Expired Balance 
Write-off 
54  Reverses a TC 534 in whole or in part by debiting the tax 
module for the amount of the module balance which was 
written off incorrectly. If it completely reverses the TC 534 
amount, the restrictions on computer computation of 
interest and FTP Penalty are removed. 
537 I/B Reversal of  
Currently  not 
Collectible 
Account Status  
Generated 
Transaction 
Reversal of TC 530. Is generated when a TDA is reissued 
as a result of the TPI (Total Positive Income) reported on  
a subsequent return, or the posting of a change of 
address or TC  150, TC977 to account in Currently not 
Collectible status with Closing Code 03. 
538 B Trust Fund 
Recovery   
Penalty Cases  
54 When input with an amount equal to or less than module 
balance, to reduce the outstanding balance of the module 
without reducing the tax liability. 1) if TC 538 attempts to 
post to other than a MFT 01/03/09/11/12 tax module or, 
2) if TC 538 attempts to post to a module where a TC 971 
AC 93 is not present, or, 3) when TC 538 or multiple TCs 
538 exceed the module balance it will unpost. 
539 B Trust Fund 
Recovery   
Penalty Cases  
54 Reverses TC 538 in whole or in part, multiple  TCs 538 
may be reversed with a TC 539 with the same date.  
ƒ If TC 539 attempts to post to a module where a 
previously posted TC 538 is not present, or 
ƒ If TC 539 attempts to post to a module and does not 
have the same date as the previously posted TC 538 
or the TC 539 amount exceeds the amount of TCs 
538 with the same date, it will unpost. 
540	 I Deceased 
Taxpayer 	
IMF: 61, 09, 
10, 26, 27, 72, 
73 Both: 11, 
12, 21, 22, 77 
Records death of taxpayer.  
Changes FR Code to “8” so blank returns are not mailed. 
Also may  be generated as the result of a return (TC 150) 
posted with Condition Code “A” or “F” or by  TC 530 CC 
Any line marked with # is for official use only  

PDF page 21

8A-21
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
08. IMF: released by TC 542. 
542 I Correction of 540 
Processed in 
Error 
77 Indicates the previously posted 540 was in error. FR is 
changed to “4” (IMF). 
550 I/B Waiver 
Extension of 
Date Collection 
Statute Expires 
77 Extends the Collection Statute Expiration Date to the data 
input with this transaction.  
For IMF only, an optional CSED TIN indicator (P) Primary, 
(S) Secondary, or (B) Both can be used to identify which 
taxpayer the extension applies to. 
TC550-Definer-CD required with TC 550 input. See 
2.4.19-5(Cont 24) item 31 for values and meanings. 
560 I/B/E Waiver 
Extension of 
Date 
Assessment 
Statute Expires 
77 B/E 
Generated 
Transaction 
Extends the Assessment Statute Expiration Date to the 
date input. 
BMF: Generated when TC 300/301 posts with a Statute 
Extended Date that is equal to ASED on latest dated 
unreversed TC 560/564 already posted to the module.   
EPMF: Can be computer generated when a TC 421 posts 
with an EP Statute Date that is later than the module’s 
current ASED. 
570 I/B Additional 
Liability Pending 
and/or Credit 
Hold 
I/BA/A; 17, 
18, 24, 48, 58, 
77 
I/B; 09, 10, 
11, 12, 21, 22, 
26, 27 
I: 61	 
Indicates additional liability pending. Freezes (—R freeze) 
module from refunding or offsetting credit out. TC 570 can 
be generated to establish frozen status by the following:  
IMF/BMF: 
ƒ A return (TC 150) posted with CCC “3” (IMF) or CCC 
“X” (BMF).  
ƒ Document code 34 credit transaction input with credit 
freeze code. 
ƒ TC 670 posts creating a credit balance and an unre­
versed TC 420 or 424 is posted to module. 
ƒ A document Code 54 with TC 291 and Priority Code 7 
in blocking series 740-769.  
ƒ TC 150 blocking series 920-929.  
ƒ TC 24X with reference number 699.  
ƒ TC 680 if results in credit balance of $5 or more.  
ƒ TDI Refund Hold (Julian Date 999)  
BMF: When Form 706 module, in installment status 14, 
goes to credit balance.  
BMF: Generated when form 706 (MFT 52) in status 14 
(installment) goes to credit balance, except when a prior 
TC 460 is posted. Use module control DLN. Frozen status 
released by the following:  
ƒ TC 571 or 572. 
ƒ Module goes to zero or debit balance (except when 
module contains any TC with Doc Code 33 in the 
DLN. 
ƒ Posting of TC 30X (except with disposal code 7 or 
11). 
ƒ Posting of TC 29X (except with priority code 6 or 7 or 
blocked 200-299)  
ƒ TC 150  
ƒ TC 840 blocked 920-929.  
ƒ TC 29X with TC 180 with zero amount if there is no 
unreversed TC 180 or 186 posted.  
ƒ Zero balance, TC 290 or 300 PC 8, TC 571 or TC 572  
571 I/B Reversal of TC 
570 
77 Releases the 570/576 freeze status. 
572 I/B Correction of 570 
Processed in 
Error 
77 Used to remove TC570/576 Input in error. 
576 Debit I Unallowable Tax Generated Generated by TC 150 with a Credit Balance and 
  
  
 
  
 
 
 
 
 
 
 
 
 
   
 
 
  
  
 
 
 
 
 
  
Any line marked with # is for official use only  

PDF page 22

8A-22
 
 
   
  
 
  
 
 
 
 
 
 
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
(PJ) Hold Transaction Unallowable Tax.  
Holds the Unallowable Tax to the extent of the Credit Bal­
ance in suspense. 
Freezes the amount of the TC 576 from refund and offset 
out. 
Resequence all Debit transactions including generated 
Doc. Code 34 debits and transfer in (TC 370) except TC 
667 & 896. (This amount has not been assessed). 
577 Credit 
(PJ) 
I Reversal of TC 
576 
Generated 
Transaction 
Generated by TC 300, 571, 572 or TC 421 with Doc. 
Code 47 and Disposal Code 20-25, 27, 29, 31-33, 35 or 
36. Restores TC 576 Unallowable Tax into the tax module 
and releases 576 hold. 
582 I/B Lien Indicator 77 Federal Tax Lien has been filed for this tax period. This 
transaction can represent two different types of liens; 
“Self-releasing” and “Re-filed”. Each will have a unique 
indicator setting. 
On IMF this transaction is also used as a “2032A 
Indicator” and a Carry-over Basis Indicator.  
On BMF, used to post “2032A Election” (F706) or “2032A 
Heir” data (F1120, 1041, or 1065) or to post cross-
reference SSN data (F720, Abstract no. 52).  
ƒ Generated to post to the entity when an MFT 01/11 
TC 150 is input with a significant “parent EIN” field. 
Use the DLN for the TC 582 being generated and 
include the “parent EIN” in the TC 582.  
ƒ Generated to post the entity when a 
F1120/1120A/1120S/1041/1065 TC 582 posts to a tax 
module. Use the DLN of input TC 582 as the DLN for 
the TC 582 being generated. 
583 I/B Reverse Lien 
Indicator 
77 or 
Generated 
Transaction 
Reverses TC 582. Deletes Cross-Reference SSN (BMF 
only). TC 583s will be generated in the conversion run for 
those modules where the last CSED has expired and the 
first “lien only” TC 582 posted after cycle 198301 (BMF), 
or 198313 (IMF) (i.e. “Self-releasing” liens). 
Posts a cross reference TIN from a transfer on a revenue 
receipt transaction. 
Effective 1/2007, TC 583 must be used with one of the 
following definer codes: 
DC 1 – released 
DC 2 – withdrawal due to administrative error 
DC 3 – withdrawal due to collection due process appeal 
rights. 
DC 4 – reversal 
DC 5 – self-released (statute expiration) 
586 B Transfer/revenue 
receipt cross-ref 
TIN 
24, 48 Posts a cross reference TIN from a transfer on a revenue 
receipt transaction. 
590 B/I/E Satisfying Trans. 14, 49 or 
Generated 
Transaction 
Not liable this tax period. Satisfies this module only. 
Requires a two digit closing code for IDRS input.  
See Section 11 for appropriate closing codes. 
591 B/I/E Satisfying Trans. 14, 49 or 
Generated 
Transaction 
No longer liable for tax. Satisfies this module and all 
subsequent modules for same MFT if not already 
delinquent. Requires a two digit closing code for IDRS 
input. 
See Section 11 for appropriate closing codes. 
592 B/I/E Reverse 59X 
Trans 
14, 49 Reverse any previously posted TC 59x (regardless of the 
TC 59x cc) present in the module. Updates FRC from 0 to 
1. 
593 B/I/E Satisfying Trans 14, 49 or 
Generated 
Unable to locate taxpayer. Satisfies this module and all 
subsequent modules for same MFT. Requires a two digit 
Any line marked with # is for official use only  

PDF page 23

8A-23
 
 
 
 
 
 
  
  
   
  
 
               
 
 
  
Trans 
Code 

 
DR/CR File Title Valid Doc. 
Code 
Remarks 
Transaction closing code for IDRS input. 
See Section 11 for appropriate closing codes. TC 593 
updates the Filing Requirement Code to zero.  
Note: when an address change posts to the entity, a TC 
592 is generated 1 cycle later for each module with a 
RDD within the previous 5 years of the current 23C date. 
594 B/I/E Satisfying Trans 14, 49 Return previously filed. Satisfies this module only. 
Requires a two digit closing code for IDRS input.  
See Section 11 for appropriate closing codes. 
595 B/I/E Satisfying Trans 14, 49 Referred to Examination. Satisfies this module and all 
subsequent modules for same MFT. Requires a two digit 
closing code for IDRS input. Updates FRC to zero.  
See Section 11 for appropriate closing codes. 
596 B/I/E Satisfying Trans 14, 49  
 
 
 
 
597 B/I/E Satisfying Trans 14, 49 Surveyed. By National Office direction only. Satisfies this 
module only. Requires a two digit closing code for IDRS 
input. 
See Section 11 for appropriate closing codes. 
598 B/I/E Satisfying Trans 14, 49 Shelved. By National Office direction only. Satisfies this 
module only. Requires a two digit closing code for IDRS 
input. 
See Section 11 for appropriate closing codes. 
599 B/I/E Satisfying Trans 14, 49 Return secured. Satisfies this module only. Requires a 
two digit closing code for IDRS input.  
See Section 11 for appropriate closing codes. 
600 Credit 
(PJ) 
I/B/E Underpayment 
Cleared 
Manually (Under 
$5) 
Manual Clearance of underpayment for less than $5.00. 
Input only as a part of an account transferred in: see TC 
370. 
604 B/I Assessed Debit 
Cleared 
Generated 
transaction 
Generated when a TC 971 AC 31/32 posts and the 
module balance is debit.  
Post TC 604 to the module for the amount of the 
assessed balance. 
Accrued Interest and Accrued Penalty fields will be 
posted. 
Update Status as appropriate. 
A TC 604 indicator (restricting penalty and interest) will be 
displayed in the tax module balance section. 
The Julian date of the generated TC 604 should be 
modified to be 999 for AC 31 and 998 for AC 32.  
When TC 608 posts, extract to IDRS if the module is 
under IDRS control. 
605 B/I Generated 
Reversal of TC 
604 
Generated 
transaction 
Generated TC 605 for the full amount of the previously 
posted unreversed TC 604 when a TC 972 AC 31/32 
posts. 
606 Credit 
(NPJ) 
I/B Underpayment
Cleared (Under 
$5) 
 Generated 
Transaction 
Clears any debit (plus) net balance less than $5.00. For 
MFT 61 debit balance must be under $1.00.       
607 Debit 
(NPJ) 
I/B Reversal of 
Underpayment 
Cleared 
Generated 
Transaction 
Reverses a previous write-off under certain conditions if a 
dishonored check is posted to a module or a remittance is 
received which equals or is less than the amount of a 
previous small balance write off. 
608 Credit 
(NPJ) 
I/B Statute 
Expiration 
Clearance to 
Zero Balance 
Generated 
Transaction 
Generated weekly when Collection Statute Expiration 
Date expired and module assessed balance is debit. Post 
TC 608 to the module for the amount of the assessed 
balance. Accrued interest and accrued penalty fields will 
Any line marked with # is for official use only 

PDF page 24

	 
	
8A-24
 
 
  
 
 
 
 
 
 
 
 
 
 
  
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
and Remove be posted. Update status as appropriate.  
The TC 608 will carry a zero amount when the assessed 
balance is already zero and there are only accruals of 
FTP and/or interest when the last module CSED expired. 
609 Debit 
(NPJ) 
I/B Reversal of 
Statute 
Expiration 
Generated 	
Transaction 
Generate TC 609 for the full amount of previously posted 
unreversed TC 608 when:  
1) a subsequent transaction carrying a money amount 
posts, or 
2) CSED is extended or suspended.  
For partial reversals, subsequent to the generation of the 
TC 609 generate TC 608 for the remaining balance.  
Prior to 1993: Generated with transaction code 370 (Doc 
Code 52). 
Issue a new TDA Information Record when current 
module status is TDA status or Status 12 preceded by 
TDA status, the total module balance is $25.00 or more, 
and a TC 609 posted in the current cycle but there is no 
TC 29X or TC 30X posting in the current cycle. 
610	 Credit 
(PJ) 
I/B Remittance with 
Return 
IMF: 11, 12, 	
17, 18, 19, 21, 
22, 24, 26, 33, 
34, 58, 70,76 
BMF: 03, 05, 
06, 08-14, 16­
20, 24, 25, 34, 
38, 40-44, 46, 
58, 65, 70, 
71,76, 81, 83, 
90, 91, 95 
19, 24, 58, 87 
Credits the tax module with a payment received with the 
return, including payment with voucher.  
611 Debit 
(PJ) 
I/B Dishonored 
Remittance with 
Return 
Reverses a dishonored payment submitted with return.  
Reduces TC 610 credit in whole or in part. BMF/IMF: If 
not accompanied by a secondary TC 280, a TC 286 is 
systemically generated. 
612 Debit 
(PJ) 
I/B Correction of 610 
Processed in 
Error 
19, 24, 34 	 Reverses a 610 transaction in whole or in part that is 
posted in error by debiting the Tax Module for the amount 
of the remittance with return. NOTE: Form MFT 04, only 
valid for tax periods subsequent to 199412 (not valid with 
34 doc code). 
620	 Credit 
(PJ)	 
B Initial installment 
payment: 
Form 7004, MFT 
02, 05, 06, 07, 
08, 12, 33, 42, 
77, 78; 
Form 8868 (TY 
2005 and 
subsequent), 
MFT 34, 36, 37, 
44, 50, 67; 
Form 5558 (TY 
2007 and 
subsequent), 
MFT 76. 
04, 17, 19 Credits the module with the remittance received with the 
Form 7004. Form 7004 TC 620 Doc Code 04 generates 
TC 460 to extend the due date (if Condition Code “L” not 
present) for filing return and generates Status Code 04 for 
1120 series,706-GS(D), 706-GS(T), 1041, 1041-N, 1041­
QFT, 1042, 1065, 1065-B, 3520-A, 8804 or Status Code 
14 for Form 8868. Form 8868 – TC 620 Doc Code 04 
generates TC 460 to extend the due date and generates 
Status Code 04 if Notice Code 1 (approved first 
extension) or 2 (approved second extension) is present.  
Form 5558 – TC 620 Doc Code 04 generates TC 460 and 
Status Code 04 and extends the due date for filing return 
if Notice Code 1 (approved extension) is present. 
621 Debit 
(PJ) 
B Dishonored 
Installment 
Payment  
19, 24, 58, 87 Reverses a dishonored payment  submitted with a 
tentative Form 1120 return or Forms 7004/2758/8736.  
Reduces TC 620 credit in whole or in part.  BMF: If not 
accompanied by a secondary TC 280, a TC 286 is 
systemically generated. 
622 Debit 
(PJ) 
B Correction of 620 
Processed in 
19, 24, 34 	 Reverses TC 620 by debiting the Tax Module for the 
amount of the 622 transaction.  
	
Any line marked with # is for official use only  

PDF page 25

8A-25
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
Error Releases credits only to the amount of the input TC 622. 
630 Credit 
(PJ) 
I/B Manual 
Application of 
Appropriation 
Money 
51, 52 Manually computed credit for amount falling under 
Separate Appropriations.  
With identification number 02, indicates credit for solar or 
wind energy investment. 
632 Debit 
(PJ) 
I/B Reverse of 
Manual 
Application of 
Appropriation 
Money 
51, 52 Reversal of TC 630.  
Identification number 03 indicates reversal of credit for 
solar or wind energy investment. 
636 Credit 
(NPJ) 
I/B Separate 
Appropriations 
Refundable 
Credit 
 Generated 
Transaction 
Master File generated credit for amounts falling under 
Separate Appropriations. With identification number 02, 
indicates credit for solar or wind energy investment. 
637 Debit 
(NPJ) 
I/B Reversal of 
Separate 
Appropriations 
Refundable 
Credit 
Generated  
Transaction 
Reversal of TC 636. Identification number 03 indicates 
reversal of credit for solar or wind energy  investment. 
640 Credit 
(PJ) 
I/B Advance 
Payment of 
Determined Defi-
ciency or 
Underreporter 
Proposal 
All: 17, 18, 19, 
24, 58, 
I/B: 34 
Credits the tax module with an advance payment of a 
determined deficiency.  
BMF/IMF: Overpayment interest is never allowed on TC  
640 (blocked 990-999) “Cash Bonds” which are in excess 
of the audit deficiency to which it is applied.  
Overpayment interest is not allowed even if the deficiency  
is subsequently abated in whole or in part. Also refer to 
Revenue Procedure 2005-18 for more information. 
Tax module frozen from refunding, offsetting out or credit 
elect when TC  640 posted and no TC 300 present or TC  
300 has disposal code 7 or 11 or the 23C date of TC 300 
(not disposal code 7 or 11) is earlier than transaction date 
of TC 640.  
Freeze is released when TC 640s are reversed, posting 
of TC 300 (not disposal code 7 or 11), TC 29X blocking 
series 500-519, 540-589, 600-619 or 640-679, or module 
balance becomes zero or debit. (MFT 55 640 freeze 
released when TC 640s are reversed or total module 
balance becomes zero or debit). 
Module is frozen from offsetting in when TC 640 posts 
and there is not a TC 300 with a 23C date prior to the 
transaction date of the TC 640. Freeze is released when 
TC 640s are reversed, posting of TC 29X (except PC 6 or 
7 or B.S. 500-519/600-619) or 30X for an amount, module 
becomes zero or debit balance, TC  
846/706/826/896/736/340/341/780 or 856 posts. Also 
used to post URP CP-2000/Stat. Notice Payments, etc. 
641	 Debit 
(PJ) 
I/B Dishonored 
Advanced 
Payment 	
19, 24, 58, 87 Reverses a dishonored payment submitted as a 
designated advanced payment.  Reduces TC 640 credit 
in whole or in part. BMF/IMF: Releases TC 640 freeze, if 
net of 64X transactions reach zero. If not accompanied by  
secondary a TC 280, a TC 286 is systemically generated. 
642 Debit 
(PJ) 
I/B Correction of 6
Processed In 
Error 
40 All: 19, 24 
I/B: 34 
  Reverses a 640 transaction in whole or in part by debiting 
the Tax Module for the amount of the remittance. 
BMF/IMF: Releases TC 640 freeze if net of 64X 
transactions reach zero. 
650 Credit 
(PJ) 
B Federal Tax 
Deposit 	
19, 24, 34, 97 (FTD) Credits Tax Module for Federal Tax Deposit 
payment when MFT 01, 03, 09, 10, 11, 12 or 16. (Tax 
Module is frozen from refunding or offsetting until TC 150 
posts.) 
NOTE: For MFT 04, only valid for tax periods subsequent 
Any line marked with # is for official use only  

PDF page 26

8A-26
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
to 199412. Tax period must end in ‘12’. Not valid with doc 
code 34. 
651 Debit 
(PJ) 
B Dishonored 
Federal Tax 
Deposit (FTD) 
19, 24, 87, 97 Reverses a dishonored payment submitted as a Federal  
Tax Deposit. If not accompanied by a secondary a TC  
280, a TC 286 systemically  generates. Valid MFTs are 
01, 03, 09, 10, 11, 12, 14, and 16. 
652 Debit 
(PJ) 
B Correction of 
FTD Posted In 
Error	 
19, 24, 34, 97 Reverses TC 650 in whole or part by  debiting the module. 
Debits Tax Module for Federal Tax Deposit posted in 
error when MFT is 01, 03, 09, 10, 11 or 34.  
NOTE: For MFT 04, only valid for tax periods subsequent 
to 199412. Tax period must end in ‘12’. Not valid with doc 
code 34. 
660 Credit 
(PJ) 
I/B Estimated Tax 17, 24, 34, 58 Credits tax module for amount of Estimated Tax paid. 
Credit is frozen from refunding or offsetting until a TC  
590/591(BMF only) or a TC 150 posts.  
Applicable to Forms 990C, 990T, 990PF, 1040, 1041, 
1041ES, and 1120 only.  
IMF: See UPC 198 and UPC 305. 
660 Credit 
(PJ) 
B Federal Tax 
Deposit 
19, 97 The transaction code that identifies the credit on the tax 
module as an FTD payment. Applicable MFTs that can be 
used with this TC are 02, 05, 33, 34 and 44.  
661 Debit 
(PJ) 
I/B Dishonored ES  
Payment or FTD  
I/B: 19, 24, 
58, 87 
B: 97 	
Reverses a dishonored payment submitted as an 
estimated tax payment or a Federal Tax Deposit.  If not 
accompanied by a secondary  TC 280, a TC  286 is 
systemically generated. 
662 Debit 
(PJ) 
I/B Correction of 660 
Processed In 
Error 
I/B: 19, 24, 
34, 58, 87 
B: 97 	
Reverses a TC 660 or TC 666 in whole or in part by  
debiting the module. IMF/BMF may reverse TC 430 
remittance amount.    
BMF: Debits tax module for Federal Tax Deposit posted 
in error when MFT 02, 05, 33, 34 or 44.    
IMF: Records the transfer of underclaimed ES Credits 
which are frozen.   
Doc. Code 24 or 34 indicates the credits have been 
transferred to another account: the amount of the 
transaction is debited to the Tax Module and any  balance 
is unfrozen. 
Reverses the TC 430 remittance amount: TC 662 in zero  
amount releases frozen excess ES credits. 
666 Credit 
(NPJ) 
I Estimated Tax 
Credit Transfer 
In 
Generated  
Transaction 
When taxpayer claims more ES credits than are posted in 
tax module, settlement is frozen and a TC 667 is 
generated and resequenced to search the spouse’s tax 
module. TC 666 represents the amount of ES credits 
transferred-in from the spouse’s module (may  be zero if 
none available or spouse’s account is not found) and 
freeze is released.  Also, credits to a deceased taxpayer’s 
spouse’s account. (Julian 999) Initialized when a CCC “F” 
return posts requesting credit elect. 
667 Debit 
(NPJ) 
I Estimated Tax 
Debit Transfer 
Out 
Generated  
Transaction 
Debit transaction representing amount of ES Credits 
transferred to a spouse’s account. Release Excess ES 
Credit Freeze. 
670 Credit 
(PJ) 
I/B Subsequent 
Payment 
All: 17, 18, 19, 
24, 58 
I/B: 34 	
If return has posted, credits the Tax Module with payment 
on account. If return has not posted, credits the Tax 
Module with prepayment on account. See UPC 198, and 
UPC 305.  May carry a Designated Payment Code (DPC) 
(See section 11.12) Processing of TC 670 with secondary 
TC 460 use doc code 19. 
671	 Debit 
(PJ) 
I/B Dishonored 
Subsequent 
Payment  
19, 24, 58, 87 Reverses a dishonored check submitted as a subsequent 
payment. IMF/BMF: If not accompanied by  a secondary 
TC 280, a TC  286 is systemically generated, except for 
blocking series 800-899 (EFT  Payments).  
Any line marked with # is for official use only  

PDF page 27

8A-27
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
Note: Not valid with doc code 34. 
672 Debit 
(PJ) 
I/B Correction of 670 
Processed In 
Error 
All: 24 
I/B: 34 
Reverses a 670 in whole or in part by debiting the mod­
ule. 
Note: For MFT  04, only valid for tax periods subsequent 
to 199412, tax period must end in ‘12’, not valid with doc 
code 34. 
673 Input of a TC 672 Changes an existing TC 670 to TC 673. 
678 Credit 
(PJ) 
B Credits for 
Treasury Bonds 
17, 24, 58 Credits Tax Module for amount of estimated tax paid by  
Treasury Bonds. Applies only to Estate  Tax.  
679 Debit 
(PJ) 
B Reversal of 
Credits for 
Treasury Bonds  
24, 58 
module. 
 Reverses TC 678 in whole or in part by debiting the 
680 Credit 
(PJ) 
I/B Designated 
Payment of 
Interest 
17, 18, 19, 24 Input to pay assessed and/or unassessed interest due 
without tolerance application.  If unrestricted, updates 
interest paid field by the TC 680 amount. If the interest 
paid field exceeds the interest assessed field, generates 
TC 196 to the extent of paid unassessed interest due. 
Any  portion that exceeds TOTAL interest due is applied to 
tax and penalty. The TC 680 amount which pays 
assessed interest is excluded  when recomputing interest. 
681 Debit 
(PJ) 
I/B Dishonored 
Designated 
Payment  
19, 24, 58, 87 Reverses a dishonored check submitted as a designated  
payment of interest..  Reduces the TC 680 transaction in 
whole or in part. If not accompanied by  a secondary TC  
280, a TC 286 is systemically  generated. 
682 Debit 
(PJ) 
I/B Correction of 6
Processed In 
Error 
All: 19, 24, 58, 
87 I,B: 34 
Reverses 680 credit in whole or in part by debiting the 
Tax Module.  
IMF: When posted, computer automatically generates a 
TC 197 interest reversal (of TC 196) generated from the 
posting of TC 680 if interest has not been abated 
previously. TC  197 will not generate if interests restricted 
with TC 340/341. 
80 
690 Credit 
(PJ) 
I/B Designated 
Payment of 
Penalty  
17, 18, 19, 24, 
34, 58 
Credits the Tax Module for a designated payment of a 
penalty  assessment. 
691 Debit 
(PJ) 
I/B Dishonored 
Designated 
Payment  
19, 24, 58, 87 Reverses dishonored payment submitted as a designated 
payment of penalty.   Reduces the TC 690 transaction in  
whole or in part. If not accompanied by  a secondary TC  
280, a TC 286 is systemically  generated. 
692 Debit 
(PJ) 
I/B Correction of 690 
Processed In 
Error 
19, 24, 34 Reverses a 690 credit in whole or in part by  debiting the 
Tax Module. 
694 Credit 
(PJ) 
I/B Designated 
Payment of Fees 
and Collection  
Costs 
All: 17, 18, 19, 
24, 58 
I/B: 34 
Designated Payment of Fees and collection costs. The 
money amount must be equal to or less than the net 
amount of unreversed TC  360’s excluding amount of 
previously applied TC 694’s. Will also go unpostable if 
there is no TC 360 present. 
695 Debit 
(PJ) 
I/B Reverse 
Designated 
Payment of Fees 
and Collection  
Costs 
All: 19, 24 
I/B: 34 
Reverses TC 694 in whole or part. 
700 Credit 
(PJ) 
I/B Credit Applied  24, 58 Credits Tax Module for a manually transferred amount. 
Will have corresponding debit TC 820 if amount is from a 
MF Account. Accounting credit posts in erroneous refund 
cases to prevent bill from generating. Credit will be 
reversed once refund repaid. For MFT 04, only valid for 
tax periods subsequent to 199412. Tax period must end 
in “12”. Not valid with doc code 34. 
701 Debit I/B  Reverse 24 Reverses the generated 706 credit applied in whole or in 
Any line marked with # is for official use only  

PDF page 28

8A-28
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
(PJ) Generated 
Overpayment 
Credit Applied 
part by  debiting the Tax Module. Transaction date must 
match TC 706 date. CAUTION: When transaction dates 
are the same, sequencing matters.  
Multiple transactions must be processed either in the 
order the TC 706s occur or decreasing money  amounts. 
The corresponding credit is TC 821. 
702 Debit 
(PJ) 
I/B Correction of 
Erroneously  
Applied Credit  
24, 58 Reverses TC 700 credit applied in whole or in part by  
debiting the Tax Module. Transaction date must match 
TC 700 date. The corresponding credit is TC  822. For 
MFT 04, only valid for tax periods subsequent to 199412, 
not valid with Doc Code 34. 
706 Credit 
(NPJ) 
I/B Generated 
Overpayment 
Applied from 
Another Tax 
Module 
Generated 
Transaction 
An ECC computer generated transaction in the amount of 
a credit offset into a Tax Module. A TC 826 debit 
transaction is the corresponding entry. Before generating 
a refund, the computer analyzes all Tax Modules in the 
account and offsets the credit to any Tax Module with a 
balance past due. 
710 Credit 
(PJ) 
I/B Overpayment 
Credit Applied 
from Prior Tax  
Period 
48, 58 Credits Tax Module for amount of overpayment from prior 
year’s return  which taxpayer elects to apply to the 
succeeding year’s estimated tax. If Document Code 48, it 
is transferred from one tax period to another within the 
ADP system and therefore must be accompanied by TC  
830. Document Code 58 is used during conversion to 
ADP to transfer these credits from the District Office to 
the proper Tax Module on the Master File. 
712 Debit 
(PJ) 
I/B Correction of 
710 or 716 Pro-
cessed In Error  
48 Reverses a TC 710 or 716 credit in whole or in part by  
debiting the Tax Module. Generally requires a counter 
entry  of TC 710 to credit the correct Module. Releases 
excess ES Credit Freeze. Transaction date must match 
TC 710 or 716 date. 
716 Credit 
(NPJ) 
I/B Generated 
Overpayment 
Credit Applied 
from Prior Tax  
Period 
Generated  
Transaction 
An ECC computer generated credit which applies the 
amount of credit elected and available from the preceding 
year’s Tax Module. A TC 836 debit is generated for the 
amount of the credit. Applicable to Forms CT-1, 720, 940, 
941, 943, 945, 990C, 990T, 990PF, 1040, 1041, 1042 
and 1120. 
720 Credit 
(PJ) 
I/B Refund 
Repayment 
45, 48 BMF/IMF Tax Module is frozen from offsetting and 
refunding unless TC290/291 is posted with Priority  Code 
8 or tax balance becomes zero or debit. Companion TC is 
772 for interest amount. 
721 Debit 
(PJ) 
I/B Dishonored 
Refund 
Repayment 
45 Dishonored check: may be equal to or less than the TC  
720. Companion TC is 770 for interest amount. If not 
accompanied by a secondary  TC 280, TC 286 is 
systemically generated. 
722 Debit 
(PJ) 
I/B Correction of 720 
Processed In 
Error 
48 Taxpayer’s correction or adjustment made to refund 
repayment. Companion TC is 770 for interest amount. 
730 Credit 
(PJ) 
I/B Overpayment 
Interest Applied 
24, 58 Credits Tax Module for a manual transfer of an 
overpayment of interest. Document Code 24 records a 
transfer with the ADP system and generally requires a 
corresponding TC 850 debit. Doc. Code 58 transfers such 
overpayment to the MF from a non-ADP return. Reversed 
by  a TC 732. 
731 Debit 
(PJ) 
I/B Reverse 
Generated 
Overpayment 
Interest Applied 
24 Reverses the generated TC 736 interest credit applied in 
whole or in part by debiting the Tax Module. Transaction 
date must match TC 736 date. Reverses erroneously  
posted TC 756. The TC 731 must match the date of the 
TC 756 and is used in the same manner as TC 731 when 
reversing a TC 736. 
732 Debit I/B/A Correction of 730 24, 58 Reverses TC 730 interest credit applied in whole or in 
Any line marked with # is for official use only  

PDF page 29

 
 
 
 
8A-29
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
(PJ) Processed in 
Error 
part by debiting the Tax Module. Transaction date must 
match TC 730 date. 
736 Credit 
(NPJ) 
I/B Generated 
Interest 
Overpayment 
Applied 
Generated 
Transaction 
Records the computer generated transfer of an interest 
refund to a Tax Module in debit (underpaid) status. 
Credits the module for the amount of interest, whichever 
is less. The corresponding debit is a TC 856. Reversed 
by  a TC 731. 
740 Credit 
(PJ) 
I/B Undelivered 
Refund Check 
Redeposited 
45 BMF/IMF: Freezes module from refunding and causes 
issuance of CP 31 for IMF or CP 231 for BMF 
(undelivered refund check notice). If any module in the 
account is in 740 Freeze condition, IMF-Freeze condition 
is released by the posting of TC 018, or BMF-Freeze 
condition is released by TC 018 or an address change 
posting, the frozen credit is released for subsequent 
reissuance of the refund. 
742 Debit 
(PJ) 
I/B Correction of 740 
Processed In 
Error 
45 Must match an unreversed TC 740 on date and amount 
to post. After posting, if the amount of the TC 740 
transaction is zero, the 740 Module Freeze is released. 
756 Credit 
(NPJ) 
B Interest on 
Overpayment 
Transferred from 
IMF 
Generated 
Transaction 
Posts interest generated on an IMF overpayment 
transferred to a BMF Tax Module in debit (underpaid) 
status. Credits module with amount of interest or amount 
of underpayment whichever is less. Corresponding debit 
is TC 876. 
760 Credit 
(PJ) 
I/B Substantiated 
Credit Payment 
Allowance 
48 Credits the Tax Module for a payment which was 
substantiated as having been paid, but not posted to the 
MF. 
762 Debit 
(PJ) 
I/B Correction of TC 
760 Processed 
In Error 
48 Reverses TC 760 in whole or in part by debiting the 
module. 
764 Credit 
(NPJ) 
I Earned Income 
Credit 
47, 54 Posts Earned Income Credit generated from line items 
from Adjustments. The Credit is for full years except 
decedents for tax periods ending 12/31/1975 through 
11/30/1977. The Credit is available for offset, refund or 
credit elect. 
765 Debit 
(NPJ) 
I Earned Income 
Credit Reversal 
47, 54 Reverses TC 764 or 768. 
766 Credit 
(NPJ) 
I/B Generated 
Refundable 
Credit Allowance 
47, 54 ECC generated to allow  a refundable credit (other than 
ES or excess FICA) which was verified on a Form 720, 
(abstract 11 amount) 941, 942, 943, 945 (Advanced 
Earned Income Credit) 990C, 990PF, 990T, 1040, 1040C, 
1041, 1120 or 1120S return but not previously posted to 
the Tax Module, or from the appropriate line item 
adjustment of an Examination or DP Tax Adjustment. 
Includes credit allowed for gasoline tax paid, credit from 
Regulated Investment Co., or Covenant Bonds with item 
reference 334 (199312-199411 only) for installments of 
1993 additional taxes. 
766 
w/OTN 
Credit I/B IRS TOP Offset 
Reversal 
47, 54 Reverses a prior posted TC 898, TOP Offset, when input 
with the same offset trace number (OTN). See Section 
8.17 for the explanation of the credit references. 
767 Debit 
(NPJ) 
I/B Generated 
Reversal of 
Refundable 
Credit Allowance 
47, 54 A generated error correction which reverses a TC 766 
credit allowance posted in error. Results from the 
appropriate line item adjustment of an Examination or DP 
Tax Adjustment with item reference 334 (199312-199411 
only) for installment of 1993 additional taxes.  
767 
w/OTN 
Debit I/B Rejected TOP 
Offset Reversal 
47, 54 Reverses a prior posted TC 766, TOP offset reversal, 
when input with the same offset trace number (OTN). 
Caution: This transaction must not be input except to 
correct a TC 766 on the FMS Reject Listing.  
Any line marked with # is for official use only  

PDF page 30

8A-30
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
768	 Credit 
(NPJ) 
I Earned Income 
Credit 
Generated 
Transaction 
Posts Earned Income Credit which is generated from 
information received from Code and Edit. 
770 Credit 
(NPJ) 
I/B Credit Interest 
Due Taxpayer  
45, 47, 48, 54 Credits the Tax Module to allow  credit on overpayment. 
Includes restricted interest on overpayment or offsetting 
interest adjustment to TC 721, 722 or 840. Overpayment 
interest is not computer generated until module balance 
reaches zero. Manual reversal of netted interest. 
771 Debit 
(NPJ) 
B Interest Reversal 
Prior to Refund 
Issuance 
48  Reverses amount of interest (TC 770 or 776) included in 
refund deletion. Accompanies T C 842. 
772 Debit 
(NPJ)
I/B Correction of 770 
Processed In 
Error or interest 
netting 
45, 47, 48, 51, 
54 
Reverses a 770 or 776 transaction in whole or in part by  
debiting the Tax Module. When secondary to TC 720, it 
represents an offset to the original TC 776 allowance. 
Manually calculated debit interest that is charged at credit 
interest rates when “netting” is applicable. 
776 Credit 
(NPJ) 
I/B Generated 
Interest Due on 
Overpayment 
Generated 
Transaction 
BMF/IMF: Credits the Tax Module for the amount of 
computer generated interest due when a Tax Module is 
overpaid as the result of a credit or an abatement. If 
restricted credit interest was previously posted to the Tax 
Module, interest must be manually computed.  
777 Debit 
(NPJ) 
I/B Reverse 
Generated  
Interest Due 
Taxpayer or  
interest netting 
Generated  
Transaction 
Generated from the posting of TC 740 or 841 to reverse 
the generated interest amount allowed on latest dated 
refund (TC 840 or 846) when a TC 740 (undeliverable 
refund check) or a TC 841 (Cancelled Refund Deposit) 
posts. Also generated debit interest that is changed at 
credit interest rates when “netting” is applicable. An 
interest netting TC 777 is generated with “999” in the 
Julian Date of the DLN to identify the transaction as 
“netted interest”. 
780 I/B Master File 
Account 
Compromised 
77 To post, a return (TC 150) and an unreversed TC 480 
must be posted. Issuance of OIC transcripts is continued. 
(1) Unreversed TC 780 generates OIC Transcript 
whenever module net balance changes.  
BMF: Releases TC 480 freeze, but does not stop 
issuance of transcripts. Freezes module from offset in. 
Prevents computer calculation of interest and FTP.  
IMF: Prevents computer generation of credit or debit 
interest. Credits are frozen from refunding in all tax 
modules of the account for 8 weeks; also, credits in the 
affected tax module are frozen from offsetting in or out. 
78 Hold released by TC 781, 782 or 788. 
781 I/B Defaulted 
Account 
Compromise 
77 Reverses all previously posted TC 780 transactions in the 
module. OIC Transcript is issued in cycle of posting and 
discontinues further OIC Transcripts. IMF: Releases 
Credit/Debit Interest, FTP Restrictions and 780/480 
Indicators. BMF: Releases interest and FTPP 
computation restrictions. 
782 I/B Correction of 780 
Processed In 
Error 
77 Records the correction of 780 posted in error. Reverses 
all previously posted TC 780 transactions in the module. 
BMF/IMF: Does not stop transcripts. Tax Module reverts 
to status under  TC 480. IMF: Re-freezes the Tax Module 
against offsetting out and refunding. IMF: Releases 
debit/credit interest restriction. BMF: Releases interest 
and FTPP computation restrictions. 
788 I/B All Collateral 
Conditions of the 
Offer Completed 
77 To post, an unreversed TC 780 must be posted. Records 
the closing of an accepted Offer-in-Compromise. 
Issuance of future OIC transcripts is discontinued. 
BMF/IMF: Account and Tax Module is released for 
offsetting and refunding insofar as pertains to OIC freeze. 
Credit/Debit interest restriction (and FTP on BMF) 
Any line marked with # is for official use only  

PDF page 31

8A-31
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
established from the posting of TC 780 are retained.  
790 Credit 
(PJ) 
B/I Manual 
Overpayment 
Applied from IMF 
A/B/I: 24 
B: 34 
Manually applied overpayment credits transferred from 
the IMF to the BMF. IMF credits are not applicable to 
taxpayers with a Form 706, 709, 990, 990C, 990PF, 
990T, 1041, 1041A, 1065, 1120, 4720 or 5227 filing 
requirement Corresponding debit is TC 890. Will unpost 
unless TC130 present. 
792 Debit 
(PJ) 
B/I Correction of 790 
Processed In 
Error 
B/A/I: 24  
B: 34 
 Reverse TC 790 or 796 in whole or in part by debiting the 
tax module. Transaction date must match TC 790 or 796 
date. The corresponding credit is TC 892. 
796 Credit 
(NPJ) 
B Overpayment 
Credit from IMF 
All: Generated 
Transaction   
A: 29 	
Credits the tax module for an amount of IMF overpayment 
transferred to the BMF or IRAF. The credit is for the 
lesser of the amount of the IMF overpayment or the BMF 
underpayment.   
BMF: Generated when a taxpayer overpays his/her IMF 
account by  $100 or more and underpays his/her BMF 
account. Not applicable if this account contains a Form 
706, 709, 990, 990C, 990PF, 990T, 1041, 1041A, 1065, 
1120, 4720 or 5227 filing requirement or tax module. 
Reversed by a TC 792. 
800 Credit 
(PJ) 
I/B Credit for 
Withheld Taxes 
48, 51 Identifies a manually prepared transaction for the input of 
Claimed Withholding and Excess FICA Taxes collected at 
source. 
802 Debit 
(PJ) 
I/B Correction of an 
800 Processed 
In Error 
48, 51 Reverses an 800 in whole or in part; debits the tax 
module for amount of transaction. 
806 Credit 
(NPJ)	 
I/B Credit for 
Withheld Taxes 
and Excess 
FICA 
Generated 
Transaction or 
54 
Credits the tax module for the amount of withholding 
taxes and excess FICA claimed on a Form 1040 or 1041 
(198712 & later) return. May  also be generated by  
appropriate line adjustment on an Examination or DP Tax 
Adjustment. 
807 Debit I/B 
(NPJ) 
Reversed Credit 
for Withheld 
Taxes 
Generated 
Transaction or 
54, 51 
Reverses the TC 800 or 806 credits in whole or in part by  
posting a debit to the tax module. MCC computer 
generated from the appropriate line adjustment of an 
Examination or DP Tax Adjustment. MFT 05:  only 
reverses TC 806.  
810 I Refund Freeze 77  To freeze the module from refunds, offsets and credit 
elect. TC 810 with Code 1 indicates prefiling notification. 
Code 2 indicates ATSDT (Abusive Tax Shelter Detection 
Teams). Code 3 earned Income Credit Check Freezes 
YR input. Contact Examination Branch if this transaction 
needs to be input. 
811 I Reverse Refund 
Freeze 
77 Reverses TC 810 in whole or in part. TC 811 with zero 
will reverse the TC 810 and allow release of all credit 
(providing no other freezes are in effect). 
820 Debit 
(PJ) 
I/B Credit 
Transferred 
24, 58 Manually transfers previously  posted credit amount to 
another tax module, another account, excess collections, 
or other destination as required. BMF/IMF Releases 
Assessment Statute Expiration Freeze for Doc. Code 24 
only.  
CAUTION: CREDIT MUST BE AVAILABLE ON MASTER 
FILE AT  TIME OF POSTING OR WILL UNPOST.  IMF: 
SEE UPC 175. BMF: SEE UPC 325. The corresponding 
credit is TC 700. NOTE: Form MFT 04, only  valid for tax 
periods subsequent to 199412.  Tax period must end in 
‘12’. Not valid with 34 Doc code. 
821 Credit 
(PJ) 
I/B Reverse 
Generated 
Overpayment 
Credit 
24 Reverses the generated TC 826 overpayment credit 
transferred in whole or in part by crediting the tax module. 
Transaction date must match TC 826 date.  
CAUTION: When transaction dates are the same, 
Any line marked with # is for official use only  

PDF page 32

 
 
8A-32
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
Transferred sequencing matters. Multiple transactions must be input 
in the order that the TC 826’s occur. The corresponding 
debit is TC 701. 
822 Credit I/B Correction of an 
Overpayment 
Transferred In 
Error 
24, 58 Reverses TC 820 and 824 in whole or in part by crediting 
the Tax Module. The corresponding debit is TC 702. 
NOTE: For MFT 04, only valid for tax periods subsequent 
to 199412. Not valid with 34 doc code. 
824 Debit 
(PJ) 
I/B Overpayment 
Credits 
Transferred to 
Another or to 
Non-MF 
Accounts 
24, 58 Transfers overpayment credits frozen by TC 130 Account 
Refund Freeze. Releases TC  130 Account Refund 
Freeze. 
IMF: See UPC 168 and 175. 
BMF: See UPC 325. 
826 Debit 
(NPJ) 
I/B Overpayment 
Transferred 
Generated 
Transaction 
An ECC computer generated debit for the amount of 
overpayment credit transferred to another tax module  
within this taxpayer’s account.  The corresponding credit is 
706. 
830 Debit 
(PJ) 
I/B Overpayment 
Credit Elect 
(Transferred) to 
Next Periods Tax 
48 Debits the tax module for the amount of credit elected to 
be transferred to the following period with same type of 
tax. A manual transfer. The corresponding credit is 710. 
Release Hold Refund Freeze.  
CAUTION: Credit must be available on Master File at time 
of posting or it will be unpostable. IMF: See UPC 175.  
BMF: See UPC 325. 
832 Credit 
(PJ) 
I/B Correction of 
Credit Elect 
Transfer 
48 Corrects an 830 or 836 transaction posted in error. 
Transaction date must match TC 830 or 836 date. 
836 Debit 
(NPJ) 
I/B Overpayment 
Credit Elect 
Transferred to 
Next Periods Tax 
Generated  
Transaction 
A debit for the amount of overpayment elected to be 
applied to the following tax period. ECC computer 
generated upon posting a Form CT-1, 720, 940, 940EZ, 
941, 943, 945, 990C, 990T, 990PF, 1040, 1041, 1042, 
1120 if a credit amount exists.  
840 Debit 
(PJ) 
I/B Manual Refund 45 Designates a manual refund was issued prior to or after a 
return (TC 150) has posted. If return has not posted, 
freeze module from refunding or offsetting out. Refer to 
Freeze Code -X in Section 8. 
841 Credit 
(PJ) 
I/B Cancelled 
Refund Check 
Deposited 
45, 48 Credits the tax module for the amount of the transaction 
from a refund check (TC 840 or BMF/IMF 846) which was 
cancelled. BMF/IMF: Module is frozen from offsetting or 
refunding. (Exception: Refunds that have been recertified 
are not frozen. Block and serial no. 88888.) is released 
by: BMF—An Examination or DP tax adjustment Doc. 
Code 24 or 34; TC 820, 830 or 843; when tax module 
balance becomes zero or debit; or by TC 571 or 572 if a 
TC 570 has posted. It is used on Non-Master File to 
assess the amount that has been erroneously abated. 
842 Credit 
(PJ) 
B Refund Deletion 48 The transaction will delete the scheduled refund prior to 
its release to the Treasury Disbursing Center. The 
transaction is posted to the BMF tax module as a credit. 
Companion TC is 771 for interest amount. Tax module is 
frozen from offsetting or refunding unless TC 290/291 is 
posted with Priority Code 8. It is released by: Examination 
or DP Tax Adjustment; Doc. Code 24 or 34; TC 820 or 
830; or tax module balance becomes zero or debit; or by  
TC 571 or 572 if a TC 570 has posted. Item is not 
journalized but is fully controlled. 
843 Debit 
(PJ) 
I/B Check 
Cancellation 
Reversal 
45 Reversal of erroneous TC 841. Date and amount must 
match those of the TC 841 being reversed. 
844 I/B Erroneous 77 Zero amount transaction which identifies tax module 
Any line marked with # is for official use only  

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8A-33
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
Refund 	 containing an erroneous refund. Must find an unreversed 
TC 840 or 846 to post. Freezes entire account from 
refunding. Freezes any modules with a TC 844 present 
from offsetting in or out. Refer to -U Freeze in Section 8. 
Generates “TRANS-844” Transcript for any  module that 
the net module balance has been changed and is credit. 
845 I/B	 Reverse  
Erroneous 
Refund 
77 Zero amount transaction. Reverses TC 844. Must find an 
unreversed TC 844 to post. 
846 Debit I/B Refund of 
Overpayment 
Generated 
Transaction 
24, 58 
Debits the tax module for the amount of overpaid tax 
(plus applicable interest) to be refunded to the taxpayer. 
850 Debit 
(PJ) 
I/B Overpayment 
Interest Transfer 
Manually transfers interest on overpayment to another tax 
module and generally requires a corresponding 730 
credit. 
851 Credit 
(PJ)	 
I/B Reverse 
Generated 
Overpayment 
Interest Transfer
 
24 
module.
 
Reverses TC 856 in whole or in part by crediting the tax 
852 Credit 
(PJ) 
I/B Correction of 850 
Processed In 
Error 
24, 58 Corrects 850 transaction by posting a credit to the tax 
module. 
856 Debit 
(NPJ) 
I/B Overpayment 
Interest Transfer 
by Computer 
Generated  
Transaction 
 Debits the tax module for the amount of interest which 
can be transferred and applied to a tax module in debit 
(balance due) status. The corresponding credit is TC 736. 
860 I/B	 Reverses 
Erroneous 
Abatement 
51 Reverses erroneous abatement after statute of limitations 
has expired. (Does not post to Master File.) 
876 Debit 
(NPJ) 
I Interest on 
Overpayment 
Transferred to 
BMF 
Transaction 
 Generated Posts interest generated on an IMF overpayment 
transferred to a BMF tax module in debit (underpaid) 
status. Corresponding credit is  TC 756. 
890 Debit 
(PJ) 
I Manual Transfer 
of Overpayment 
Credits to BMF 
24 Manual transfer of overpayment credits from the IMF for 
application to the BMF or IRAF. (BMF credits cannot be 
applied to taxpayers filing Form 990, 990C, 990PF, 990T, 
1041, 1041A, 1065, 1120, 4720 or 5227.) The 
corresponding credit is TC 790. Will unpost unless TC  
130 is present. 
892 Credit 
(PJ) 
I Correction of TC 
890 Processed 
In Error 
24 Reverses TC 890 or 896 in whole or in part by crediting 
the tax module. Transaction date must match TC 890 or 
896 date. Corresponding debit is TC 792. 
896 Debit 
(NPJ) 
I/B Overpayment 
Credit Offset 
Generated  T
Transaction or 
29	 
TX
C896 with AG/SA code represents a previously posted 
DMF offset. A DMF TC 896 will no longer occur after 
1/11/1999 because CC DMFOL no longer exists after that 
date. Instead, information about DMF offsets (TC 896) 
can be obtained from CCs IMFOL, BMFOL, INOLEX and 
MOD.    
897 Credit 
(NPJ) 
I/B DMF Offset 
Reversal 
47, 54 Credits the tax module with the amount of DMF offset 
reversal requested. Reverse in  whole or in part an 
associated TC  896 with a matching agency and sub­
agency.   
BMF: Valid on Form 1120. 
898 I/B FMS TOP Offset Generated 
Transaction 
Treasury Offset Program (TOP) offset initiated by FMS. 
Posts with the trans date and DLN of the refund from 
which it originated. It has a memo amount, an Offset 
Trace Number (OTN), and an XREF SSN. TC 898 
reduces the amount of the refund with which it is 
associated. Reversed by a TC 766 with the same OTN or 
TC899 with same OTN. 
899 I/B	 FMS TOP Offset Generated TOP offset reversal initiated by FMS. Posts with a type 
Any line marked with # is for official use only  

PDF page 34

8A-34
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
Any line marked with # is for official use only  
reversal or 
Agency 
Refund/Reversal 
Transaction code, memo amount, and OTN. Reverses a prior posted 
TC 898 with the same OTN. 
Type 1 - FMS TOP offset reversal.  
Type 2 - Agency refund of TOP offset.  
Type 3 - FMS refund of TOP offset.  
Type 4 - Agency refund reversal. 
901 I/B/E Delete IDRS 
Indicator 
79 Campus request to delete a specific entity or tax module 
from the TIF (IDRS) based upon the FLC. Does not post 
to Master File. 
902 I/B/E Campus IDRS 
Indicator 
79 Campus request to put a specific entity or tax module on 
the TIF (IDRS). The requested module data will be 
displayed on IDRS in approximately 2 weeks and will 
remain on IDRS for 3 weeks unless other action 
established a longer retention. If no account or modules 
exists a Master File, a TC 904 is generated. Does not 
post to Master File. 
903 I/B Master File IDRS 
Entity Delete 
Generated 
Transaction 
MCC computer generated to indicate that an entity was 
deleted by TC 020. Does not post to Master File. 
904 I/B/E Notify IDRS 
Entity or Module 
not Present 
Generated 
Transaction 
Generated by ECC to notify IDRS that the entity or tax 
module requested by TC 902 is not present on the 
IMF/BMF. TC 904 will identify the Retention Register D.O. 
if the module has been removed. Doc Code 99 (4th & 5th 
digit of the 904 DLN) indicates TIN is present but module 
requested is not. With Doc Code 79, TIN is not 
present/Name Control incorrect. 
910 I/B  
 
 
77  
 
 
911 I/B  
 
77  
912 I/B  
 
77  
914 I/B  
 
77  
 
 
 
  
 
  
 
 
915 IB 
 
 77  
 
 
916 IB  
 
 
77  
 
917 IB  
 
 
77  
918 I/B  
 
 
 
77  
 
919 I/B  
 
77  
920 I/B IDRS Notice 
Status 
79 Records notice Records in the Status History Section of 
the tax module, the status, date and amount of taxpayer 
balance due notices generated by IDRS. Does not post to 

PDF page 35

8A-35 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
Master File. 
922 I IRP 
Underreporter 
Generated 
Transaction or 
77 
IRP Underreporter status transaction. Posts to tax module 
balance section. The transaction date and process codes 
are updated by subsequent TC 922. Will not affect status 
history section. See “Underreporter Process Codes”, 
Section 8. 
924 I IRP COMM, IRP 
Communication Generated 
77,99 or 
Transaction 
IRP communication transaction. Posts to IMF. Posted TC
  
924 is updated by all other 924s. TC 924 may be input 
from IRP or generated by Master File when: TC 300 Ref 
+S7890; or TC  140 or 922 with Int/Div field of $500 or 
more. Also refer to Back-up Withholding, Section 11.          
930 I/B/E	 Return Required 
Suspense 
I/B 78, 
E 77 
Generates Campus Notice CP 98/198/498 when TC 150 
posts to a module containing TC 930. EPMF: Posts to a 
Plan Return Module when an unreversed return is not 
present in the module. A transcript is produced when an 
unreversed TC 150 posts. 
932 I/B	 Reverse Return 
Required 
Suspense 
78 Reverses a TC 930. 
940 I/B Strike Force 
Control 
77 TC 940—No longer valid after cycle 199052. 
942 I/B Reversal of 
Strike Force 
77 TC 942—No longer valid after cycle 199052. 
960 I/B/E Add/Update 77 
Centralized 
Authorization 
File Indicator 
Reporting 
Agents File 
Adds/updates CAF indicator to the module. Causes 
notices and/or refunds to be sent to authorized 
representative. Also can be generated when a TC 150 or 
620 (BMF) with a significant CAF code posts and an 
unreversed TC 960 is not already posted. Also posts to 
the entity  and sets the RAF-Filing and EFTPS Indicators. 
961 I/B/E	 Revers
Centralized 
Authorization 
File Indicator 
e 77 Reverses TC 960 and zeros module CAF indicator.  
BMF: For Reporting Agents File, posts to the entity, and 
zeros the RAF-Filing and EFTPS Indicators.
 
970 B	 F720 Additional  
Schedules; or 
Generated  
Transaction 
Generated when MFT 03 TC  150 posts with  data 
transcribed from accompanying F8743. 
F945 liability  
amounts from 
F945-A and 
related dates 
Generated when MFT 16 TC  150 posts with  data 
transcribed from accompanying F945-A. 
F941 liability  
amounts from 
Schedule B and  
related dates 
Generated when MFT 01 TC  150 posts with  data 
transcribed from accompany  Schedule B. 
971 B/I/A	 Miscellaneous 
Transaction  
77 Performs different actions based on the Action Code 
which are listed separately. 
972 B/I	 Revers
Amended/Duplic 
ate Return XREF  
TIN/Tax Period 
Data 
es 77 Used to reverse TC 971. 
973 B	 Application for 
Tentative Refund 
F1139 
Processed 
Return Filed­
8038 Series 
Return and 
Additional Filing 
84 Identifies receipt of Form 1139 application of tentative 
refund for corporation (valid for input after 4/1/1993). 
Tax liability assessed from additional original filing of 
Form 5330 and the posting of Form 8038 Series Return. 
Any line marked with # is for official use only  

PDF page 36

8A-36
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
of Form 5330 
976 Credit B Posted Duplicate 
Return 
Generated  
Transaction 
Identifies the input return (TC 150) which caused a 
duplicate posting condition. Also identifies an amended 
return (TC 150 with Condition Code G).  
CP 193 will be issued unless unreversed TC 420 or 424 
posted; in that case, CP 293 will be issued.  
Except for Forms 1065, with PIA Codes of 6212 or 6218, 
tax module is frozen from offset/refund until an Examina­
tion (TC 30X) or DP adjustment (TC 29X) is posted 
subsequent to TC 976 posting. 
976 Credit I Posted Duplicate 
Return 
Generated  
Transaction 
Identifies the input return which causes a duplicate 
posting condition. TC 150 is replaced with TC 976 by  
computer. 
IMF: CP 36, Notice of Duplicate Return is issued. Prints 
CP 29 Indicator on CP 36 if module contains an amended 
return with other than Doc. Code 54; amended return 
freeze was on in module at beginning of cycle; and 
current processing cycle is later than 19 cycles from 
normal return due date. Tax module is frozen from 
offsetting and refunding until released by  an Examination 
(TC 30X) or DP Tax (TC 29X) Adjustment. 
976 E Posted Duplicate 
Return 
Generated  
Transaction 
Generated by a corrected unpostable 808 TC 150 to 
identify a duplicate return. 
977 Credit I/E Posted Amended 
Return 
Posted 
Consolidated 
Generated  
Amended, Late  
Reply, or DOL 
Referral 
Generated  
Transaction 
Identifies an input return which contained Condition Code 
G (Amended), or an IMF 1040X (identified by Block 
number 200-299). TC 150 is replaced with TC 977 by 
computer. An amount posted with TC 977 is a remittance 
amount and does not reflect adjustment in liability. Any 
subsequent adjustment will be input via TC 29X or 30X.  
IMF: If an original return is not posted, CP 29 or 729 
notice of amended return is issued 19 cycles after the due 
date of the return. Tax module is frozen from offset out 
and refund until released by the original return (except 
1040X).  
980 B W-3/1096 
Transaction 
69, 98, 32, 88 Information from Forms W-3 and 1096 post to the CAWR 
 module. MFT 88. 
982 B CAWR Control  
DLN Transaction 
35, 37, 40, 41, 
43, 44, 47, 51, 
54, 97 
Transaction posted to the CAWR module (MFT 88) 
whenever the Control DLN of a 941/943/945/Schedule H 
(MFT 30 or 05) tax module is that of a DP adjustment or 
Doc. Code 51 assessment transaction.  
Generated with special DLN to MFT 88 tax module to 
indicate related MFT 01/11/16/30/05. 
984 B CAWR  
Adjustment 
Tr
 Any Campus transactions which will post to the CAWR 
module (MFT 88) and make adjustments to the module 
ansaction accumulators. 
986 B CAWR Status 
Transaction 
 Any Campus transactions which will post to establish various 
status or closing codes on the CAWR module (MFT 88). 
They w ill be entered to generate notices from CAP, 
reanalyze modules, close cases, etc.  A TC986 with 
Status 87 denotes a case sent from SSA to IRS. Status 
87 and some Status 88 are the result of SSA IND = 2 
CAWR cases referred by SSA to IRS to be worked by  
CAWR. 
990 I/B/E/ 
P 
Specific 
Transcript 
99(PMF), 
56(IMF), 
92(IRP), or 
Generated 
Transaction 
Generates a SPECIFIC transcript for the particular Tax 
Module designated by the MFT Code and Tax Period. 
This TC  with Doc Codes 56 and 99 is input via CC 
PATRA. 
991 I/B Open Module  
Transcript 
Generated  
Transaction 
Generates OPEN MODULE transcript of all open tax 
modules (debit or credit). Transcript will also indicate the 
Any line marked with # is for official use only  

PDF page 37

8A-37
 
Trans 
Code 
DR/CR File Title Valid Doc. 
Code 
Remarks 
current FR Codes of the account. 
992 I/B/E/ 
P 
Complete or Tax 
Class transcript 
 56 (IMF), 
99 (PMF) or 
Generated  
Transaction 
BMF: MFT 00 generates a complete transcript of all tax 
modules within the account regardless of the balance. 
Other than MFT 00 generates a transcript of every  
module within the specified MFT.  With Doc. Code 99, 
generates Tax Class Transcript.  
IMF: Generates a complete transcript.  This TC  with Doc 
Codes 56 and 99 is input via CC PATRA. 
993 I/B/P Entity Transcript 99(PMF), 
56(IMF) or 
Generated  
Transaction 
Generates an ENTITY transcript listing name line(s) and 
all transactions posted to the Entity module of an account. 
This TC  with Doc Codes 56 and 99 is input via CC 
PATRA. 
994 I — Generated 
Transaction 
Indicates that two accounts failed to merge; causes a 
complete account transcript to be generated. Does not 
post to Master File. 
995 I/B — Generated  
Transaction 
IMF: Indicates difference in validity status; causes a 
complete account transcript to be generated. Does not 
post to Master File. 
BMF: identifies UPC 305 transcript. 
996 B/I Follow-up on 
Uncollectible 
Generated 
Transaction 
Transmits information on IMF accounts containing TC 130 
with closing codes 03, 12 and 24-32 to the BMF cross-
reference which has been 53’d to reactivate the BMF 
account if the closing code condition has been met on the 
IMF. Updates entity.  
998 B  Update Entity 
Information 
 Generated 
Transaction 
Generated when TC 150 for MFT 51 posts with name line 
or spouse SSN. Also generated  when TC 150 for MFT 52 
posts with Date of Death different from DOD already 
posted. 
998 B Update Entity  
Information 
Generated  
Transaction 
Generated when TC 150 for MFT 51 posts with name line 
or spouse SSN. Also generated  when TC 150 for MFT 52 
posts with Date of Death different from DOD already 
posted. 
3 MF and IDRS Collection Status Codes 
The Master File codes are MCC computer generated as a result of the computer analysis after a transaction has posted to 
the Master File. The Status Code designates the current collection status of the module and will appear on the MCC 
transcripts and on IDRS. The ten-digit abbreviations appear on the MCC transcripts only. IDRS Status Codes which are 
unique to IDRS or vary in meaning from similar MF status codes are identified by *.  
 
Code File Abbreviation	 Explanation 
00 I/B RT NOT FIL Module is established but return is not filed. 
02** I/B/E DEL 
STATUS 
Return not posted; letter of inquiry mailed. 
03** I/B/E TDI STATUS IDRS in delinquency status. **NOTE: 02 and 03 Status Code are modified and further 
explained by Status Indicators following the Status Codes. (See Sec. 11 for a definition of  
these indicators) 
04 I/B EXT FILING Extension of time for filing granted. (Date of status is extension application filing date.) 
Installment basis, when applicable, to Forms 1041, 990C, 990T and 1120. 
05 B 7004 UNDER 	 7004 filed, underpaid installment notice sent. (990C, 990T, 1120 modules only.) 
06 I/B/E NO DEL RET 	  Delinquent return not filed. Collection activity suspended while examination or criminal 
investigation review, or until another tax period posts to the Master File. 
08 B 	  CAWR-SSA IND = 1 cases. SSA working case, but not yet referred to IRS for followup.  
MFT 88. 
09 B 	  CAWR and SSA IND = 2 cases.  WIRS ordered and case is awaiting documents from 
WIRS. MFT 88. 
Any line marked with # is for official use only  

PDF page 38

8A-38
 
Code File Abbreviation Explanation 
Any line marked with # is for official use only  
10 I/E RT NT EVEN Status Code 10 converted to status code 12, effective January 2002. 
B CAWR case in suspense, awaiting receipt of research for next action.  MFT 88. 
11 B MOD BAL CAWR module in balance.  MFT 88. 
12 I/B R OP OR PD Return is filed or assessed or, if MFT 13, TC 240 posted, overpaid or subsequently col­
lected.
 
*12 N Full Paid-generated in response to Command Code STAUP or when TC 291 appends to a 
module in IDRS Status 89 and the IDRS module balance is less than tolerance. 
13 B R INSF REM  Return filed and assessed; inquiry letter sent regarding insufficient installment remit­
tance—Form 990C, 990T, 1120, 2290 and 4638 only. Credit cannot be offset into the 
module. 
14 B INSTAL MBL  Form 1041 (without CC 5), or Form 706, 706NA, 4638,* 990C, 990T, 1120 and 2290
 
return is filed and assessed; or returns with Condition Code 5 (1120, 1041, 990C, 990T) 
filed and assessed. Balance due—installment basis and/or manual billing operations; no 
billing or computation of interest on the computer. Generate CP 191 BMF  Transcript 
Notice whenever there is a deferred action 32 for current cycle or whenever a transaction 
posts to a module in other than TDA status with this status present in the Status History
  
Section. Form 1120, 990C and 990T must have CC 5. 
16 B 1 NB DUE CAWR CP Notice 251 issued.  MFT 88. 
18 B BAL DU DEF Form 706 return filed and assessed; balance due with no installment, however, settlement 
payment deferred for 26 cycles or until Treasury Bond payment (TC 678) is posted. 
Suppress notices. 
16 B 1 NB DUE CAWR CP Notice 251 issued.  MFT 88. 
18 B BAL DU DEF Form 706 return filed and assessed; balance due with no installment, however, settlement 
payment deferred for 26 cycles or until Treasury Bond payment (TC 678) is posted. 
Suppress notices. 
19 I/B R BAL NDUE Status code 19 converted to status code 21, effective January 2002.  
20 B  RET INSTAL Return filed and assessed—installment basis and current—Forms 990C, 990T, 2290, 
4638 and 1120 only. Credits cannot be offset into the module. 
20 I IDRS CP 501 
NOTICE 
ISSUED 
on file. 
Return filed and assessed; First Notice issued. No longer being input but can be present 
21 I/ IMF 
SETTLEMEN 
T NOTICE 
Return is filed and assessed or, if MFT 13, TC 240 posted—First Notice issued. Also 
update to Status 21 in the cycle the duplicate freeze is present and TC 606 criteria are 
met.
 
B CAWR Federal Entity.  Correspondence issued.  MFT 88. 
22 I/B TDA REG  Return filed and assessed; or, if MFT 13, TC 240 posted TDA issued, ACS. If module 
overpaid in Status 22, the status will not be updated to status 12 until the assessed 
module balance has been reduced to zero. 
22 B TDA REG Return is filed and assessed; TDA issued ACS, Queue, ICS, or paper. 
*22 N TDA—Generated when one or more modules balance due meets the established TDA 
tolerance, or in response to CC STAUP. 
23 I/B BELOW TOL Return is filed and assessed or, if MFT 13, TC 240 posted—Module Balance below TDA 
tolerance. 
24 B CAWR Undeliverable (no SSA IND = 2 cases).  MFT 88. 
*24 I/B TDA REG Return filed and assessed; TDA issued, awaiting paper or ICS assignment, Queue. See 
BMF status 22 entry  and note that BMF carries all TDAs as status 22 on Master File. 
25 B Open CAWR and SSA IND = 2 cases.  Case referral to Exam. MFT 88. 
26 B CAWR - SSA IND = 2 cases.  BMF Status to CAP when TC 986 ST CD 91 attempts to 
post. MFT 88. 
*26 I/B TDA REG Return filed and assessed, TDA issued, awaiting paper or ICS assignment, CFF. See 
BMF status 22 entry  and note that BMF carries all TDAs as status 22 on Master File. 
*26 I/B TDA REG Return filed and assessed, TDA issued, awaiting paper or ICS assignment, CFF. See 
BMF status 22 entry  and note that BMF carries all TDAs as status 22 on Master File. 
27 B Open CAWR and SSA IND = 2 cases.  
 
28 B MAN NOT  CAWR and SSA IND = 2 cases.  99C letter issued. MFT 88. 
29 B CAWR and SSA IND = 2 cases.  Open Case Referral to Collection. MFT 88. 
29 I/B TRANS OUT  Account transferred out. Transactions other than TC 370 with secondary TC 402 (IMF), or 
TC 402 (BMF) attempting to post to the account are unpostable, UPC 311 (BMF); or UPC 

PDF page 39

8A-39
Code File Abbreviation	 Explanation 
186 (IMF). 
*29 N	 Transferred out—Generated in response to Command Code STAUP. Indicates module 
balance has been transferred to another file. 
28 B MAN NOT 	 CAWR and SSA IND = 2 cases.  99C letter issued. MFT 88. 
29 B	 CAWR and SSA IND = 2 cases.  Open Case Referral to Collection. MFT 88. 
29 I/B TRANS OUT 	 Account transferred out. Transactions other than TC 370 with secondary TC 402 (IMF), or 
TC 402 (BMF) attempting to post to the account are unpostable, UPC 311 (BMF); or UPC 
186 (IMF). 
*29 N	 Transferred out—Generated in response to Command Code STAUP. Indicates module 
balance has been transferred to another file. 
31 B CLOS EXAM 	 CAWR and SSA IND = 2 Closed to Examination. MFT 88. 
32 B CLOS COLL 	 CAWR and SSA IND = 2 Closed to Collection.  MFT 88. 
33 B CLOS INTEL  	 CAWR and SSA IND = 2 Closed to CI.  MFT 88. 
34 B CLOSED	 CAWR Closed with TC 290 for zero with TP reply received (no SSA IND = 2 cases).  MFT 
88. 
32 B CLOS COLL CAWR and SSA IND = 2 Closed to Collection.  MFT 88. 
33 B CLOS INTEL  CAWR and SSA IND = 2 Closed to CI.  MFT 88. 
34 B CLOSED CAWR Closed with TC 290 for zero with TP reply received (no SSA IND = 2 cases).  MFT 
88. 
35 B   Closed CAWR (no SSA IND = 2 cases) TC 290 with money amount and TP reply 
received.  MFT 88. 
36 B Closed CAWR (no SSA IND = 2) through research only.  MFT 88. 
37 B CAWR CAWR closed No reply (no SSA IND = 2 cases).  MFT 88. 
38 B CAWR or SSA IND = 2 cases closed due to completed merge at BMF. MFT 88. 
39 B CAWR CAWR closed UNDEL (no SSA IND = 2 cases).  MFT 88. 
38 B CAWR or SSA IND = 2 cases closed due to completed merge at BMF. MFT 88. 
39 B CAWR CAWR closed UNDEL (no SSA IND = 2 cases).  MFT 88. 
39 B CAWR CAWR closed UNDEL (no SSA IND = 2 cases).  MFT 88. 
40 B CAWR - Closed SSA IND = 2; TC 290, RC 549 (for any amount or zero) input to IDRS, 
BMF update. MFT 88. 
41 B CAWR - SSA IND = 2 cases with TC 290, RC 549 for zero or with $, entity is either 
bankrupt or defunct (CC 07 or 10 only) sent from BMF to CAP.  MFT 88. 
*41 I/B Stay of Collection (Negotiable Collateral)—Generated when TC 524 with Closing Code 
(CC) 41 pends to a module. This status suspends all notices except those called for in 
Collateral Agreements. 
42 B  CAWR and SSA IND = 2 cases.  2057C letter issued.  MFT 88. 
42 B  CAWR and SSA IND = 2 cases.  2057C letter issued.  MFT 88. 
*42 I/B Stay of Collection (Non-Negotiable Collateral)—Generated when TC 524 with CC 40 or 42 
pends to module. This status suspends all notices except those called for in Collateral 
Agreements. 
*42 I/B Stay of Collection (Non-Negotiable Collateral)—Generated when TC 524 with CC 40 or 42 
pends to module. This status suspends all notices except those called for in Collateral 
Agreements. 
43 B CAWR or SSA IND = 2 case closed.  Late reply received, worked, and closed.  MFT 88. 
*43 I/B Stay of Collection (Combat)—Generated when there is a combat freeze on the account 
and the module is in an active notice or TDA status. TC 500 with CC 50 pends to module. 
This status suspends all notices except those called for in Combat Deferments. 
44 B Reply to CAWR Correspondence (no SSA IND = 2 cases).  MFT 88. 
*44 I/B Stay of Collection (Military)—Generated when TC 500 with CC 51 pends to a module. 
This status suspends all notices except those called or in Military Deferments. 
CAWR and SSA IND = 2 cases, module re-analysis request.  MFT 88. 
46 B CAWR - SSA IND = 2 cases only, undeliverable closed/no new address/end of program 
(PCD). MFT 88. 
*46 I/B Expired Stay of Collection (Military/Combat)—Generated when a TC 550 pends to a 
module in IDRS status 43 or 44. This status initiates action for issuance of a 
Military/Combat Suspension Notice and TDA. 
47 B CAWR - Closed, Late reply received (needs to be worked).  MFT 88. 
Any line marked with # is for official use only  

PDF page 40

8A-40
 
Code File Abbreviation Explanation 
*47 I/B Temporary Freeze—Generated when a TC 4 70 with no CC pends to a module in IDRS 
notice status. This status suppresses all IDRS balance due notices up to a maximum of 
15 cycles, unless reversed by TC 472 or released by 29X, 30X. 
*48 I/B Generated by Command Code STAUP when status 20, 22, 24, 26, 54, 56 or 58 is 
requested with a significant (non-zero) number of cycles to delay. Suppresses the IDRS 
balance due notice for up to 15 cycles, depending on control base information. 
*49 I/B Deleted transaction—Generated when certain transactions which altered the IDRS Status, 
are deleted. Initiates analysis to recover prior IDRS status. 
*50 I/B Revise IDRS Status—Generated by CC STAUP when status 20, 22, 24, 26, 54, 56, 58 is 
requested and number of cycles requested is 00. Causes module to be accelerated to the 
requested notice/TDA status. 
*51 I/B Undelivered Notices—Generated by input CC ST AUP 5100 if master file status 19 or 21 is 
present. Accelerates final notice. 
*53 I/B Currently not Collectible Account—Generated when TC 530 with CC 01-08 or 10-39 
pends or posts to a module or when TC 470 with 90 or 93 pends or posts to a module. 
This status suppresses all IDRS balance due notices. 
53 N Currently not Collectible—Generated when TC 530 pends to a module with CC 01-08 or 
10-39. 
54 I 2
nd Notice IDRS CP 502 Notice Issued. 
55 B CAWR and SSA IND = 2 cases.  1534 C letter issued. MFT 88. 
56 I/B 3rd Notice IDRS CP 503 Notice Issued. 
*57 I Telephone Call Notice (Indefinitely suspended cycle 197927). 
58 I/B 4th Notice IDRS CP 504 Notice Issued. 
*60 I/B Installment—Generated when CC IAORG or IAREV is input to an account. Establishes 
active Installment Agreement. This status suspends all notices except those for Install­
ment Agreements. 
*61 I/B Suspended Installment Agreements—Generated when certain conditions specified in 
Installment Agreements are encountered. This status suspends all notices except those 
called for in Installment Agreements. 
*63 I/B Deferred Installment Agreement—Generated when CC IADFR is input to an account. 
Defers Installment Agreements. This status suppresses all notices except those called for 
in Installment Agreements. 
*64 I/B Defaulted Installment Agreement—Generated when CC IADFL is input to an account, or 
whenever an Installment Agreement is defaulted. This status initiates a Notice of Default 
during weekly update and a TDA eight cycles later. 
67 B CAWR and SSA IND = 2 cases, correspondence other than ST CD 16/21/28/42/55/69/90 
issued. MFT 88. 
68 B CAWR and SSA IND = 2 cases, reply received on Interim letter issued.  (Action 61 
Interim) MFT 88 
69 B CAWR - 98C issued.  Case Types 01 and 09 only.  MFT 88. 
*71 I/B OIC Pending/Suspend TDA—Generated when an unreversed TC 480 is present in a 
module, or an unreversed TC 780 is present, or CC STAUP is input with IDRS Status 
Code 71. This status suppresses all balance due notices except first notices. 
*72 I/B Litigation/Suspend TDA—Generated when a TC 520 with CC 70-89; (except ccs 71, 72, 
75 and 84) is input and posts to a module. This status suppresses all IDRS balance due 
notices. 
*73 I/B Obsolete as of January 1991, but may still be present on IDRS. 
*76 I/B Immediate TDA Pending—Generated when the First Notice and Immediate TDA are 
issued during the same cycle. This status suppresses TDA issuance for one cycle. 
*77 I/B Accelerated Notice Account—Generated for certain Primary TDA Selection Codes. This 
status causes analysis for fourth notice three to eight cycles after extraction. 
87 B CAWR SSA IND = 2 cases where IRS indicates case in balance but SSA indicates case is 
out of balance.  MFT 88. 
88 B MOD OUT 
BL 
CAWR and SSA IND = 2 Module out of balance; or, Case returned from CI (ST CD 27), 
Exam (ST CD 25), or Collection (ST CD 29).  MFT 88. 
*89 N Collection Suspended—Generated in response to Command Code STAUP, or when TC 
524, 520, 500 or 470 with CC 90 or 93 pends to the module. 
90 B CAWR SSA IND = 2 Case CP-253 issued.  MFT 88. 
Any line marked with # is for official use only  

PDF page 41

8A-41
 
Code File Abbreviation	 Explanation 
91 B	 CAWR SSA IND = 2 Case closed.  Could be as a result of systemic penalty assessment 
from CAWR Automated Program (CAP) or input by TE  when a response was received.  
MFT 88. 
92 B	 CAWR SSA IND = 2 cases.  Response received to CP253 — No automatic penalty  
assessment made. MFT 88. 
93 B	 CAWR SSA IND  = 2 cases. Undeliverable CP 253.  No automatic penalty assessment 
made. MFT 88. 
94 B	 CAWR SSA IND = 2 cases.  Closed as under tolerance at/by BMF (CAP sent ST CD 91 to 
BMF). BMF returns ST CD 94 to CAP and posts 94 on master file.  MFT 88. 
95 B	 CAWR - SSA IND = 2 cases. TC 290, RC 549 for zero, input to IDRS and posted to BMF.  
BMF sends ST CD 40 to CAP.  MFT 88. 
96 B	 CAWR - SSA IND = 2 cases, TC 290, RC 549 with $ input and posted to IDRS and to 
BMF. BMF sends ST CD 40 to CAP.  MFT 88. 
97 B	 CAWR reserved 
98 B	 CAWR and SSA IND = 2 cases. Closed unreconciled, by direction of H.Q.  MFT 88. 
*99 I/B	  Transferred Out/SC Location—Generated when the location codes of a module is 
transferred out of the SC. 
*99 N	 Transferred Out/SC Location—Generated  when a module in TDA or Suspended Status is 
transferred out of the Campus, but the account is still within the Campus. 
99 B	 CAWR - SSA IND = 2 cases.  Closed resolved through research (money match).  The 
case is in balance but master file not updated.  MFT 88. 
4 Master File Freeze Codes and IDRS status 48 
Master file processing uses alpha codes to identify specific conditions that are generated either systemically, during the 
processing operation, or manually, through input of a transaction code. These alpha codes are commonly referred to as 
“freeze” codes. This term is misleading since not all alpha codes indicate activity within a module or account is frozen. 
Various IDRS conditions also affect the status of a module. Assessment/abatement actions, refunds, offsets, status 
updates, issuance of TDA balance due notices or suspension of a CSED can be affected by these alpha codes or IDRS 
conditions. 
Freeze 
Code 
File Freeze Condition and Explanation Freeze Release 
Any line marked with # is for official use only  
—A I/B/A Duplicate Return Freeze—Initiated by TC 
976 return (with or without “G” code) or 
generated (IMF & BMF) from the posting of 
TC 971 with action code 10 or 12-15.  
IMF only—TC 150 if amended return freeze 
(E—) is present, TC 977 if TC 150 is 
present (except if the DLNs are equal or 
the TC 977 DLN has a doc code 11 with 
B.S. 99X), TC 290 (B.S. 200-289) posts to 
a module with amended/duplicate freeze or 
unreversed TC 576 is present.  
IMF: TC29X (except blocked 2XX or priority code 6, 
or 7, (except TC 291 with priority code 7 blocked 
740-769); TC 30X with priority code 1 or 3 (except 
with 51 doc code).  
BMF: Audit/DP Adjustment posting in a subsequent 
cycle. 
IMF: TC29X or 30X. 
BMF Exception - A TC 29X in blocking series 130­
149 or 400-499 will not release the freeze. 
A— I/B  
 
 
 
 
 
 
 
—B I/B  
 
 
      
B— B  
 
       
  
B— I Potential manual interest/penalty 
adjustment. Freezes Refunds or offsets out 
of module. 
Module goes to zero or debit balance or TC 29X 
(except Priority Code 6, or 7 or blocked 200-299) or 
TC 30X. 
—C I Combat Zone Indicator (ECZ).  Released when all modular TC 500 transactions with 
 
 
 
 
 
 
 

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8A-42
 
 
 
 
 
 
 
 
 
Freeze 
Code 
File Freeze Condition and Explanation Freeze Release 
Set by TC 150 CCC K or TC 500 CC 52, 54 
or 56 input to any module in the account.  
Prevents offsets, suspends the ASED and 
CSED, and restricts interest, FTP, 
delinquency and estimated tax penalty on 
all modules in the account containing a 
normal RDD prior to the Combat Departure 
Date plus grace period. 
CC 52, 54 or 56 have been reversed by TC 502 or 
when the ECZ is set to a 2. 
—C B Consolidation—Computer generated when 
the posting of transactions would cause the 
module to exceed the maximum size 
allowable. 
Upon consolidation of excess transactions. Com­
puter generated 
C— I/B Offset overflow—The offset storage area is 
not large enough to hold all generated 
transactions, transactions are resequenced 
because of Entity freeze, DLN of posting 
TC 150 with a credit balance is same as 
posted TC 977 DLN. A credit balance has 
been completely offset and 2 or more debit 
modules still exist. The 57 hold is released 
due to the credit module balance being 
equal to or less than the sum of the TC 197 
posted in the module. 
Computer released after all resequencing transac­
tions are posted and/or account becomes active or 
at least 1 debit module which is either completely or 
partially satisfied contains Accrued Late Payment 
Penalty. Transactions with money present being 
resequenced. Current year return with un-honored 
credit elect attempting to refund. 
—D I,B RSED—(Refund Statute Expiration Date). 
Tax module freeze prevents refund, offset 
out and credit elect processing. Set the 
freeze when TC 29X or 30X (doc code 47 
or 54) posts and creates a credit balance 
that is comprised of pre-paid credits 
(credits posted by the due date of the 
return), and the Refund Statute Expiration 
Date (RSED) has expired. Exclude from the 
selection criteria 29X with blocking series 
900-909, 910-919 and 920-929 all with 54 
doc code only. 
RSED freeze is released by posting of the 29X with 
priority code 4, or when module balance becomes 
zero or debit. 
D— I (1)ES validation freeze is initiated by a TC 
150 claiming more ES credits than are 
available resulting in a TC 667 resequenc­
ing to spouse’s account. Module freeze.  
(2) Used to offset an overpayment to a joint 
balance due account. 
Computer released by TC 666 (except with Julian 
date 999). 
Released by spousal TC 826 (normally in 3 cycles). 
D— I,B Large Corporation Offset Freeze. Created 
when TC 470 CC 97 posts; freezes entire 
account (all modules) from offset in/out. 
Released by the TC 472 CC 97 expiration of DA57, 
or when module balance becomes zero or debit. 
—E I Tax shelter freeze is set by posting TC 810 
to any module in the account. 
TC 811 (for each TC 810) with a credit release field 
of zero or with an amount in the credit release field 
will allow an equal amount of credit in that module to 
settle provided no other freeze is in effect. 
—E B Rollback freeze is set Whenever rollback 
analysis has been performed and a 
discrepancy still exists. It is also set on 
debit modules that do not qualify for 
Rollover/Rollback analysis if the account 
has no modules that are or have been in 
status 22 or 23 in the past 12 months. This 
freeze prevents offsets (generated) into the 
module. 
Computer released in 10 cycles, discrepancy is 
resolved by a subsequent posting of TC 650/660 or 
module balance becomes zero or credit or module 
reaches status 22/23/24/26. 
E— I/B Amended return freeze is set by TC 977 
(IMF) or TC 976 (BMF) posting to a module 
and a posted TC 150 is not present. The 
TC 150 (sets duplicate return freeze on IMF when 
DLNs are not identical). TC 971, action code 2. 
Any line marked with # is for official use only  

PDF page 43

 
8A-43
 
Freeze 
Code 
File Freeze Condition and Explanation Freeze Release 
Any line marked with # is for official use only  
freeze is also set when a TC 976 is 
generated from the posting of a TC 971 
with action code 10 or 12-15. The module 
is frozen from refunding or offset (in or out). 
Generates CP 29 unless initiated by TC  
971, action codes 10 or 12-15.  
F— I  
 
 
 
 
 
 
 
—F I/B Advance Payment freeze—TC 640. 
Freezes module from generated refund or 
offset to other tax modules. Module freeze 
if no TC 290 blocked 500-519, 540-589, 
600-619 or 640-679 or if no TC 300 present 
or, if TC 300 present containing disposal 
code 7 or 11 or, if 23C date of TC 290 
blocked per above or TC 300 (not disposal 
code 7 or 11) is earlier than transaction 
date of TC 640. 
TC 30X (without Disposal Code 7 or 11) posting if 
the 23C date is equal to or later than the TC  640 
trans date; TC  641/642 posting which reverses all 
TC 640 credits in the module; module going to zero 
or debit balance and module status is other than 14, 
18 or 20 or when TC 29X blocking series 500-519, 
550-589, 600-619, or 650-679 (for underreporter); or 
blocking series 540-549 or 640-649 (for substitute 
for return) posts. TC 641/642 or module balance 
becomes zero or debit (MFT  13/55). TC 24X 
transaction with a date equal to or later than TC 640 
transaction. Do not release Freeze if an unreversed 
TC 420 is posted. 
G— I The restricted failure to pay penalty freeze  
is set by:  
(1) TC 270 generated by posting of TC 150 
with condition code “Z” or computer 
condition code (CCC) K.  
(2) TC 270/271 (except with RC 62), 320 
(with significant amount), 500 or 780.  
(3) Doc Code 51 (except B.S. 100-159 or 
Doc Code 52. 800-949 input to MFT31. 
(2) TC 272, 321, 502, 781 or 782. (1)(3) Permanent 
restrictions. (4) T C 272, 781 or 782. 
G— B The restricted failure to pay penalty freeze 
is set by: (1) TC 270/271 (except with RC 
62), TC 320 (RDD is prior to 1-1-87), 534 
(for significant amount) or 780. (2)Doc 
Code 51 (except B.S. 100-199) or Doc 
Code 52. 
(1)TC 272 (zero amount) 321, 535 (if TC 534 
amount is completely reversed), 781 or 782. (2) 
Permanent restrictions. 
—G I/B (1) Posting of an original return  which 
contains a math error code.  
(2) Posting of an adjustment in the 770-789 
block. 
(3) TC 150 (IMF) posting which contains 
CC “X” or “Y”.  
TC 470 cc 94, TC 290 with priority code 6 or com­
puter release in 12 cycles. 
H— I IMF—BMF offset freeze set by 
resequencing a module TC 796. 
TC 896 
H— B TC 690 and unreversed penalty  
assessment not present for an equal or 
greater amount. 
TC 691/692 (posting for same amount), TC  29X/30X 
(with penalty assessment, including document code 
51) or computer released in 8 cycles. 
—H B Module is frozen for offset or refund 
whenever a transaction posts that creates a 
credit balance and the status code is 06  
with a TC 59X present. 
Module balance becomes zero or debit, or status 
updated from 06. 
I— I/B Credit interest is restricted under the 
following conditions:  
(1) TC 770, 780 or 534 (BMF—for 
significant amount).  
(2) TC 150 with CCC “U” (IMF).  
(3) TC 150 posting to invalid segment 
(1) TC 771 (BMF), 772, 535 (must completely  
reverse TC 534 amount), 781 or 782. (2)(3) IMF 
only—reversal by TC 29X which contains a Returns 
Processable Date. (1)(4) Net Module balance 
becomes zero or debit. 

PDF page 44

8A-44
 
 Freeze 
Code 
File Freeze Condition and Explanation Freeze Release 
Any line marked with # is for official use only  
(except if Accretion Indicator is set) or the 
doc code of the TC 150 is 72/73 with a 
temporary SSN (1st digit is 9).  
(4) TC 150 with CCC “Z” generates a TC
  
770 for zero amount. 
—I I/B	 Debit interest is restricted by  posting of TC  
340/341, TC 500/780 (IMF); including DC 
52, TC 150 on IMF (with CCC ‘Z’). TC 370 
doc code 52 posting cycle and subsequent 
TC 534 or status 14. Module freeze. 
TC 342, including DC 52, (must completely abate TC  
534), 781 or 782 including DC 52. 
J— I	 Excess Estimated Tax Credit freeze— 
taxpayer claims less credit than available 
on IMF. Module freeze. 
TC 662 (may be for zero amount), 667 or 712. 
TC29X  with Priority Code 8. 
J— B	   
  
 
 
 
, 
 
 
 
—J I/B	 Math error unsubstantiated protest, set 
when TC 470 CC 94 is input to a module  
containing math error freeze (-G).  Freezes 
TDA  
TC 472 CC 94, or posting of ADJ54 with PC 7. 
—K	 I/B Credit module balances are frozen from 
refund or offset  when the following 
conditions are present:  
(1) IMF—TC 29X/30X is posted with a hold 
code 1, 2 or 4.  
(2) BMF—TC 29X/30X is posted with a 
hold code 1, 2, 4  
(3) Form 1120 with a CCC “N” (Joint 
Committee Case) is posted. 
(1)(2) TC 150, 29X (IMF—except with priority code 
6, 7 or B.S. 2XX). TC 30X (IMF—except if the doc 
code is 51 and the hold code is 2 on a C—UPC 
transaction or an unreversed TC 576 is present), TC  
820 (BMF—except Doc code  58), TC 830, Doc code 
24 or 34 transaction, net module balance becomes 
zero or debit. (3) TC 29X/30X posts with doc code 
51. (4) CCC “N” released by posting of 29X/30X. 
NOTE: Posting of TC 29X/30X  with hold code 2/4 
will withhold issuance of adjustment notice. 
K— I/B	 Erroneous Credits freeze is set when credit 
balance module  with other than refundable 
cash credits, (i.e., TC 606 write-off). The 
total module balance plus accrued FTP 
penalty  less credit interest is greater than 
the net of transactions cited above (IMF). 
Module freeze.  
Module balance is made up of only refundable cash 
credits, becomes zero or debit. 
—L I/B	 AIMS Indicator—Account selected for audit 
freeze is set by posting TC 420/424. 
Module freeze.  
Certain TC 30X or 42X transactions or TC 914, 916 
or 918 if TC 424 is present and TC 150 is not 
posted. 
L—	 I/B Freeze from return and offset  
 
On setting the freeze, generate a 
record with fields that include credit 
balance and L- Freeze = ‘ON’, to be 
subsequently used for F2290 Credit 
Report. During the time this freeze is set, 
such a record should be generated 
whenever the module credit balance 
changes (but does not become zero).  Also 
set on IMF when a TC 971 AC 065 is 
posted, this means the TP has filed an 
Innocent Spouse claim. 
Release freeze when: 
1. Doc code 34/24 credit transfers posts; or
2. A TC 370 Doc Code 51 posts; or  
3. A TC 290 posts; or  
4. Module balance becomes zero or debit.  
On releasing the freeze, generate a record with 
fields that include credit balance, if any, and L- 
Freeze = ‘OFF’, to be subsequently used for F2290 
Credit Report.
Release this freeze set by TC 971 AC 065 with a TC  
972 AC 065. 
 
M— I/B	 Account transfer out freeze is set by  
posting of TC 400. Module freeze (except 
DC 52). 
TC 402 (input only by Accounting Branch). 
 
 
 
 

PDF page 45

 
 
8A-45
 
Freeze 
Code 
File Freeze Condition and Explanation Freeze Release 
Any line marked with # is for official use only 
—M B Maritime Industry Filer 
balance becomes zero or debit. 
Deletion of Employment Code “M” or module 
N— I/B Notice status account. Module indicator 
only. 
Module balance becomes zero or TDA issuance. 
—N I/B Appeals abatement refusal indicator is set 
when a TC 290 (Blocking Series 960-969) 
is posted. Subsequent abatement actions 
TC 161, 181, 235, 241, 271 and 281 
unpost (UPC 321). 
TC 290, blocking series 970-979. 
O— I/B The re-establishment or account 
reactivated freeze is set by TC 370 (doc 
code 52) when a module is transferred from 
the Retention Register to the master file. 
Offset out, refunding and Balance Due TDA 
issuance (BMF) is restricted. Module 
freeze. 
TC 150, 29X, 30X, 421, 550 or Doc. code 51 record. 
—O I/B Disaster freeze, set by TC971 AC 86 or 87.  
Causes unique penalty and interest 
processing, suppresses notices, TDA, TDI. 
Released when current date is beyond the disaster 
end date in the TC 971. 
P— I/B The refund cancelled/deletion/repayment 
freeze is set under the following conditions: 
(1) TC 720 or 841 (IMF/BMF) (except TC  
841 with block and serial of 77777 or 
88888 or if the module contains TC 29X 
with hold code 8 posted prior to cycle 
8714.)  
(2) TC 842 with TC 150 present (BMF). 
(1)(2) TC 29X/30X (IMF—except with priority code 
6/7 or B.S. 200-299), TC 721 (BMF), 722, 820, 830, 
doc code 24, doc code 34 (BMF and IMF (except 
with TC 720 or 841) TC 843 (IMF) or net module  
balance becomes zero or debit. 
—P B Beneficiary offset freeze. Prevents F1041 
(MFT 05) module from offset/refund/credit 
elect if credit beneficiaries field is significant 
on return and 820 not posted.  
Released by TC 820 or if module becomes zero or 
debit balance. Note: if debit balance is zero or credit 
is still holding check module for credit elect. 
Q— B  
  
 
 
 
 
 
 
 
        
 
 
 
 
 
 
 
—Q I Unal
 lowable tax hold or partial refund hold 
(TC 576). Freezes the tax module from 
refund and offset out. Module freeze. 
TC 30X, 571 or 572. TC 421 when Disposal Code is 
20-25, 27, 29, 31-33, 35 or 36. 
—R I  
 
 
 
 
 
 
 
  
 
  
     
 
        
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
—R B T
 he additional liability freeze is set when a 
TC 570 is posted to a module. TC 570 is 
generated on BMF under the following 
TC 571, 572, 29X (except with priority codes 5, 6 or 
7 or TC 180 for zero posts to module with no  
unreversed TC 186 (BMF), 30X (except disposal 
code 7 or 11) or net module balance becomes zero 

PDF page 46

8A-46
 
Freeze  
Code 
File Freeze Condition and Explanation Freeze Release 
conditions  	
1. TC 150 with CCC “X”.  
2. TC 291 with priority code 7.. 
or debit. TC 291 with priority code 7 and TC 570 can 
only be reversed by TC 300 (except disposal code 7 
or 11 or when the net module balance is zero. TC  
24X posts to the Civil Penalty  Module (MFT 13). 
R— I/B RPS Multiple 610 freeze Multiple TC 610s 
were present on the module when the TC  
150 posted or RPS TC 610 does not match 
DLN of posted TC 150. Module freeze. 
TC  29X (excluding priority code 6, 7 or blocking 
series 2XX (IMF) or TC 30X. BMF: TC 612 to 
reverse TC 610 (except doc codes 17, 18, 58 or 34) 
not matching on return DLN when TC 976 posts, or 
when module goes to zero or debit balance. 
S— I/B Undelivered Refund Check. TC 740 (I/B/A) 
or a refund attempting to generate from an 
IMF account with a Campus Zip Code. 
NOTE: CP 231 will be suppressed if TC  
740 posts with  bulk series “66666”. 
TC 018 (IMF/BMF), 150 (IMF), 742 (net of all TC  
74X is zero or debit), net module balance is zero or 
TC 014 (IMF/BMF). 
—S I/B Disaster Indicator for all taxpayers in a 
minor disaster area. 
Removed when the 23C date is later than the 
Disaster End Date of the -S freeze. Penalty  and 
interest relief is given at masterfile on all BMF MFTs  
(except MFTs  12 and 88) for all -S type disasters. 
Compliance is not waived by IDRS for the -S freeze. 
 T— I/B TDA status: 22-ACS, 24—Queue or 26-
paper (D.O.) This is a non-freeze alpha 
condition. Module indicator. 
Module balance becomes zero or credit. Status 22 
 —T I/B TC 910 entity freeze. Intel-910 transcript 
issued in the cycle TC 910 posts. Account 
freeze. 
TC 911 posting 
—U I/B Erroneous Refund Freeze (TC 844) 
Freezes entire account. 
TC 845 Account freeze released when all TC 844’s 
in entire account are reversed. 
U— I/B Installment status 60. Module freeze. Status updated to other than 60. 
V— I/B Indicates taxpayer has an outstanding 
liability on another account. Freezes entire 
account. 
 TC 131 or TC 824 
—V I/B Bankruptcy freeze is set by TC 520 with the 
appropriate closing code as follows: CC 
83/85/88 (freezes assessment actions), CC 
87 (freezes refunds), 83/85/88/89 (freezes 
offsets), CC 89 (allows credit elect 
transfer), CC 86/87/89 (allows assessment 
actions), CC 86/89 (allows refunds), CC 
86/87 (allows  offsets), CC—ALL 
(suppresses balance due notices and 
suspends CSED). See Section 11 for 
additional information. 
TC 521/522 with CC 83/85-89. Any TC 521 
(IMF/BMF) containing a Statistical indicator. 
W— I/B	  The claim pending freeze is set when a TC 
470 is posted to a balance due module. 
The freeze is also set on IMF with TC 840 
(if TC 150 without CCC “O” is present and 
no 29X/30X is present) or TC  976/977. No 
closing code or CC 90 prevents offset in. 
Module freeze.   
BMF MFT 02 only: releases in 52 weeks or 
TC 472 CC 98, or TC 295, or when total 
module balance is zero or credit. 
See 470 Closing Code Chart in Chapter 11. BMF: 
MFT 02 only TC 470 CC 98 carry back claim  
received. Prohibits offsets. 
—W 	 I/B  The litigation pending freeze is set by TC 
520 with the appropriate closing code. TC  
520 with CC 70, 84, 75-81, suspends 
running of the CSED unless a TC 550, TC  
552 or TC 522 is posted with a later 
transaction date. Refunds/offsets and credit 
elects are frozen except under certain 
TC  521/522 with the appropriate closing code. Also, 
reestablish CSED on Chapter XI cases, after plan 
confirmation by inputting confirmation date with  
appropriate TC. 
Any line marked with # is for official use only  

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8A-47
 
Freeze 
Code 
File Freeze Condition and Explanation Freeze Release 
Any line marked with # is for official use only  
conditions (See Section 11.08(6)). 
—X I/B  
  
 
 
 
 
 
 
 
   
 
 
 
  
  
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X— A The manual as
 sessment freeze is set when 
a module is in credit status and a CCC “X” 
is present. 
When net module balance becomes zero or debit. 
X— I/B Million Dollar Refund Freeze. Restricts 
offset. 
Module balance becomes zero or debit or with post-
ing of a TC 840. 
—Y I/B Offer in Compromise—TC 480/780/782. TC 481, 482, 483, 781, 782, or 788. 
Y— A The DP/Audit Adjustment freeze is set by 
TC 29X/30X that contains a hold code 1, 2 
or 4. 
TC29X/30X, 820, TC 300 (doc code 51), doc code 
24 or net module balance becomes zero or debit. 
—Z I/B   
 Z— I/B  
 
 
 
  
None I E
ntity freeze initiated by generated TC 667, 
666 with a Julian date of 999 (credit elect), 
spousal TC 706 or BMF 796 resequencing 
from this account. All input transactions are 
resequenced until the freeze is released. 
TC 666, 667 with a Julian date of 999 (credit elect), 
spousal TC 826, or BMF within the account. 
None I Memo freeze is set when an account is 
removed from IMF to resequence to 
another SSN or to merge with another 
account. Causes all input transactions to 
be resequenced. 
TC 026(entity  will be deleted) or TC 006 (successful 
or unsuccessful merge). 
None I   
 
 
 
  
 
 
 
 
None I Invalid SSN freeze is set when an overpaid 
TC 150 posts to the invalid segment of the 
MF and one of the following conditions are 
not present: 
(1)TC 150 previously  posted to the account 
in cycle 8001 or subsequent.  
(2)TC 29X (other than priority  codes 6 or 7) 
or TC 30X with a disposal code other than 
01 posted during the current calendar year, 
(3) Accretion invalid release indicator is 
present, or 
(4)TC 150 (doc code 72 or 73) posts with a 
temporary SSN (high order digit of 9). 
TC 510—resequence to valid segment of MF, peri-
odic DM—1 revalidation, TC  29X or TC 30X (with 
disposal code other than 1) or accretion invalid SSN 
indicator is set in the Entity. 
None  
 
 
 
 
 
 
 
 

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8A-48
 
 Freeze 
Code 
File Freeze Condition and Explanation Freeze Release 
Any line marked with # is for official use only  
     
 
 
 
 
                        
 
 
 
 
 
Status 
48 
I/B Command Code ST
AUP is input to balance 
due modules in notice status to suspend 
collection activity. Updates module to SC 
status 48. This status will now  be sent to 
MF to mark modules in IDRS status 48. 
The master files will post the status 48 
behind the current status. IDRS balance 
due notices or TDA issuance is suppressed 
for the requested number of cycles (up to 
15). 
Input of CC STAUP with next status and number of 
cycles, or systemically  at expiration of control base 
information or number of cycles originally input 
unless a restrictive condition is present. 
5 Restrictive Conditions 
IDRS balance due processing identifies certain restrictive conditions which prohibit issuance of balance due notice and 
TDA. If a restrictive condition exists on a tax module eligible for update to notice of TDA status, the module will not update 
to the next status. It will be analyzed in the next processing cycle for issuance of the appropriate status. 
Note: These conditions must be taken into consideration when a command code or transaction code are input to 
reactivate the balance due notice/TDA routine. If any of the conditions below are present on a module/account, 
IDRS will not update the status or resume balance due notice/TDA issuance until all restrictive conditions are 
removed. 
1 Unreversed TC 470 
2 Pending TC 470 (no cc, cc 94, or cc 98) 
3 Left hand freeze O (O–) 
4 Right hand freeze A, J, V, or X 
5 Pending unpostable transaction code (UN or NU) 
6 Current cycle is earlier than cycle of return due date 
7 FTP penalty  or interest accrual amount is negative 
8 Master file balance due notice issued within the past 5 weeks 
9 Unreversed TC 914, TC 916, TC 918 present 
10 Pinex notice 569T or 569R issued within the past 5 weeks 
11 PN TC 150 - 400, 411, 412, 488, 520 (except CC 71, 72, 75, or 84), 530, 534, 535, 611-692 
(except TC 6x0), 701-772 (except TC 7x0), 792, 802, 806, 807, 820-843, 850, 890, 971, 976, 977 
12 If next notice is 505 (TDA) and —G freeze present 
13 Module within 6 months of the latest CSED 
14 Unreversed TC 608 present 
6 Filing Requirement Codes (FR Codes) 
FR Codes are posted to the Entity Section of the Master File to identify the types of returns a taxpayer must file. They are 
not to be confused with Mail Filing Requirement Codes (MFR) which are used to identify the types of forms the IRS must 
mail to the taxpayer. The MFR codes follow the Quick Reference chart below. 
Reference IRM 2.4 Chapter 9 
Following is a BMF, IMF, EPMF, IRAF list and compatibility chart for quick reference: 
FR BMF Form No. 
00 941, 944, 944PR, 944-SS, 1120, 990, 8804 
(Return not required to be mailed or filed) 
0 All (Return not required) 
00 1040ES only—no 1040 
01 1040 not required 
FR IMF Form No. 

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8A-49
 
FR BMF Form No. 
01 941, 944, 944PR, 944-SS, 1120/1120A, 990, 990- 
EZ, 8804 
1 942*,720,CT-1, 706’s (D), 706G-S(T) 1066 
1 990C, 990T, 5227, 990PF 
1 990, 4720 
1 1065*, 1041* 
1 943,940,940EZ,11C,730,2290,1042,1120PC,1066, 07 
945 required to be mailed if filed 
02 941, 944. 944PR, 944-SS (Return required to be 
mailed and filed annually - Employment Code F) 
02 1120S, 990, 1065-B, 8804 
2 CT-1 990C, 5227, 990, 990T (401(a)), 940EZ 
03 990 Group Return 
03 941 no longer liable—Final Return Current 
Calendar Year  
03 1120L, 8804 
3 940, 990PF 
04 941E,1120M,1120PC 
4 940, 990 BL, 1120M 
4 720 Casual Filer 
06 941SS 
06 1120F 
06 944, 944PR, 944-SS 
06 990 Church 
6 720 with abstract #50 or 56 
7 720 (Windfall Profits Tax abstract #52) 
7 942PR (Location code 86601) 
07 941PR (Location code 86601), 944, 944PR,  
944-SS 
7 940PR (Location code 86601) 
07 1120 (6 mos. extended) 
7 943PR (Location code 86601) 
07 990 501(c)(1) filer 
8 INACTIVE (except 940, 940 EZ, 941 and 1120) 
09 941M (Criminal Filer) 
9 720M 
09 1120POL 
10 941M (Civil Filer) 
10 1120H 
11 1120ND 
11 941, 944 
13 941SS, 944-SS 
14 941PR, 944PR 
14 1120 (Subsidiary-TC 590 CC14 posted) 
14 990 not required to file...instrumentalities of states 
or political subdivisions 
16 1120 SF 
17 1120 RIC 
18 1120 REIT 
19 1120 personal service corp. 
20 1120C 
51 941 No longer liable—Final Return Last Calendar 
Year 
88 Inactive (941, 1120) 
FR IMF Form No. 
02 1040A, 1040EZ (Schedules A,B) 
03 1040 (Schedules A & B) 
04 1040 full non-business (Sch. A,B,D,E) 
05 1040 Business (Sch A,B,D,E,C,F) 
06 1040SS 
1040PR 
08 INACTIVE 
09 1040NR 
10 Schedule F Business with farm package 
11 IMF Child Care Credit Present 
12 Schedule R/RP present 
13 IMF 1040 EZ 
14 IMF 1040A (Sch. R/RD present) 
15 IMF 1040T  
16 Unnecessary filing 
17 Pension Withholding 
0 Not Required to File 
8 INACTIVE 
FR EPMF Form No. 
X 5500 
T  5500-C/R 
N 5500-EZ NOT LIABLE 
Z 5500-EZ 
T  5500-SF 
*1120 Return cannot be input to module with 942, 1041, 990PF, 990L, 990, 990T, 4720 or 1065 FR. 942 and 
1041 cannot be input to module with 1120 or 1065 FR. 1065 Return cannot be input to module with 942, 1041 
or 1120 FR. 
(1) BMF MAIL FILING REQUIREMENTS 
Any line marked with # is for official use only  

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8A-50
 
Note: For BNCHG input formats, see IRM 2.4.9. 
Code Definition 
 (1&2) Form 941—Employers Quarterly Federal Tax Return (Withholding and FICA Taxes) 
00 Return not required to be mailed or filed. 
01  Return required to be mailed and filed quarterly. 
02 Return required to be mailed and filed quarterly (Employment Code F Employer) 
03 Identifies taxpayers who are no longer liable for Form 941 taxes but to whom Publication is to be 
mailed. After mailing Pub. 393, FR is set to 51 (Generated) 
06 Virgin Islands (DO 21, 66, 78), Guam and American Samoa (DO 20, 60, 98) Filer—Form 941SS 
otherwise same as FR 1 
07 Puerto Rico (DO 21, 66, 78) Filer—Form 941PR in Spanish. Otherwise same as FR 1. 
09  Payment of Form 941M (Criminal Filers) required monthly. Mailing functions are not performed by 
Martinsburg Computing Center. 
10 941M (Civil Filer) required monthly. 
11 941 Seasonal or Intermittent Filer 
13 941SS Seasonal or Intermittent Filer 
14 941PR Seasonal or Intermittent Filer 
51 Final Form 941 was filed in previous calendar year 
55 Reserved for programming use 
88 Account currently inactive. Return not required to be mailed or filed 
(3&4) Form 1120—U.S. Corporation Income Tax Return 
00 Return not required to be mailed or filed 
01 Form 1120/1120A required to be filed. Form 1120 or 1120A required to be mailed in the month in 
which the corporations fiscal year ends. 
02 Form 1120S required 
03 Form 1120L required 
04 1120PC required 
06 Form 1120F required 
07 Form 1120 required to be filed 
09 Form 1120POL required. Return not required to be mailed. No FTD mail-out 
10  1120H required 
11 Form 1120ND required 
13 Use when a corporation becomes a Qsub of a parent corp.  Input the Qsub information under the 
parent filer. 
14 Subsidiary Organization. Return not required to be mailed or filed 
15 F1120 FSC required 
16 1120DF required 
17 1120RIC required 
18 1120 REIT required 
19 1120 Personal Service Corp. required 
55 Reserved for programming use 
88 Account currently inactive. Return not required to be mailed or filed. 
(5) Form 720—Quarterly Federal Excise Tax Return 
0 Return not required to be mailed or filed. 
1  Return required to be mailed and filed quarterly. 
4 Casual filer. Return not required to be filed quarterly. 
5 Reserved for programming use. 
8 Account currently inactive. Return not required to be filed. 
9 Payment on Form 720M required monthly. Mailing functions are not performed by the Martinsburg 
Computing Center. 
(6) Form 1041—U.S. Fiduciary Income Tax Return 
0 Not required to file Form 1041. 
1 Required to file Form 1041. 
5 Reserved for programming use. 
8 Account currently inactive. Return not required filed. 
9 Form 1041QFT required to be filed. 
(7) Form 1065—U.S. Partnership Return of Income 
0 Not required to file Form 1065. 
1 Required to file Form 1065. 
5 Reserved for programming use. 
8 Account currently inactive. Return not required to be mailed or filed. 
(8) Form 1065B—U.S. Return of Income for Electing Large Partnerships 
Any line marked with # is for official use only  

PDF page 51




8A-51
 
Code Definition 
0 Not required to file Form 1065-B 
2 Required to file Form 1065-B 
5 Reserved for programming use 
8 Account currently inactive.  Return not required to be mailed or filed. 
(9) Form 940—Employers Annual Federal Unemployment Tax Return 
0 Return not required to be mailed or filed. 
1 Return required to be mailed and filed. 
2  940 EZ 
3 Indian Tribal Government-Fed/State Compliant - Not Required To File 
4 Indian Tribal Government-Fed/State Non-Compliant - Required to File 
5 Reserved for programming use. 
7 Puerto Rico (DO 20, 60, 66) filer. Form 940 in Spanish, otherwise same as FR 1 
8 Account currently inactive. Return not required to be mailed or filed. 
(10) Form 943—Employers Annual Tax Return for Agricultural Employees  
0 Return not required to be mailed or filed. 
1 Return required to be mailed and filed. 
5 Reserved for programming use. 
7 Puerto Rico (DO 20, 60, 66) filer. Form 943PR in Spanish, otherwise same as FR1 
8 Account currently inactive. Return not required to be mailed or filed. 
 (11) Form 1042 U.S. Annual Return of Income Tax to be Paid at Source 
0 Not required to file. 
1 Required to file for Form 1042. 
5 Reserved for programming use. 
8 Account currently inactive. Return not required to be mailed or filed. 
(12) Form 990-C Exempt Cooperative Income Tax Return 
0 not required to file 
1 required to file Form 990-C 
2 not required to file if Form 1120 filed instead 
5 Reserved for programming use. 
8 account currently inactive, return not required to be mailed or filed 
(13) Form 990-T Exempt Organization Business Income Tax Return 
0 not required to file 
1 required to file Form 990-T  
2 not required to file annually (Pension Trust 401 (a)) 
5 reserved for programming use 
8 account currently inactive, return not required to be mailed or filed 
(14) Form 5227 Split-Interest Trust Information Return 
0 not required to file 
1 required to file Form 5227 
2 required to file Form 5227 and may also file Form 1041 
5 reserved for programming use 
8 account currently inactive. Return not required to be mailed or filed. 
(15) Form 990 PF Private Foundation Exempt From Income Tax 
0 not required to file 
1 required to file Form 990 PF 
2 revoked, required to file Form 990 PF and 1120. 
3 Presume to be private foundation, required to file Form 990PF 
5 reserved for programming use 
8 account currently inactive, return not required to be mailed or filed 
(16) Form 2290 Heavy Vehicle Use Tax Return 
0 not required to file 
1 required to file Form 2290 
5 reserved for programming use 
8 account currently inactive, return not required to be mailed or filed 
 (17) Form 11C Special Tax and Application for Registry 
0 not required to file 
1 required to file Form 11C 
5 reserved for programming use 
8 account currently inactive, return not required to be mailed or filed 
(18) Form 730 Tax on Wagering 
0 not required to file 
1 required to file Form 730 
5 reserved for programming use 
Any line marked with # is for official use only  

PDF page 52

8A-52
 
Code Definition 
8 account currently inactive, return not required to be mailed or filed 
(19 & 20) Form 990 and 990EZ Organization Exempt from Income Tax 
00 not required to file. 
01 required to file Form 990 Gross receipts over $25,000 
02 not required to file Form 990 Gross receipts of $25,000 or less 
03 Dummy Entity—group return filed 
04 not required to file—filing Form 990BL 
05 reserved for programming use 
06 not required to file—Church 
07  not required to file—exempt under 501 (c)(1) 
13 Not required to file—religious organization 
14 Instrumentalities of States or Political Subdivisions not required to file 
55 reserved for programming use 
88 account currently inactive, return not required to be mailed or filed 
(21) Form 8752—Required Payment or Refund under IRC Section 7519 
0 Not required to file (Calendar-Year Filers) 
1 Required to file (Fiscal-Year Filers) 
2 Grandfather Filers – Not required to file 
3 Natural Business Year/Law – Required to file.  This FR represents those fiscal-year filers with an 
acceptable business-year purpose to file on a fiscal-year basis. 
8 Account currently inactive, return not required to be mailed or filed 
(22) Form 945—Payer’s Annual Tax Return 
0 Not required to file 
1 Required to file 
 (23) Form CT-1 Employer’s Annual Railroad Retirement Tax return 
0 Return not required to be mailed or filed 
1 CT-1 filer - Local lodge or subordinate unit of a parent railway  organization  
2 CT-1 filer - Parent railway organization (an “R” us pre-printed in Name Caption which becomes CT­
1R)
 
5 Reserved for programming use 
8 Account currently inactive. Return not required to be mailed or filed 
(24) Form 941 - Employer’s Quarterly Tax return for Household Employees  
0 Return not required to be mailed or filed 
1 Return required to be mailed and filed quarterly 
5 Reserved for programming use 
7 Puerto Rico (DO 66) filer. Form 942PR in Spanish, otherwise same as FR 1 
8 Account currently inactive. Return not required to be mailed or filed 
(25) Form 1041A - Trust Accumulation of Charitable, etc., Amounts 
0 Return not required to be mailed or filed 
1 Filing requirement generated when filed - not required to file annually  
5 Reserved for programming use 
8 Account currently inactive. Return not required to be mailed or filed 
(26) Form 4720 - Initial Excise Taxes on Private Foundation 
0 Not required to be filed 
1 Filing requirement generated when filed - not required to file annually 
5 Reserved for programming use 
8 Account currently inactive. Return not required to be mailed or filed 
(27) Form 8804 – Annual Return for Partnership Withholding Tax 
00 Not required to file Form 8804 
01 th Form 8813 payment posts. TP required to file Form 8804.  The Return Due Date (RDD) is the 15
th day of the 4  month (3 ½ months) from the end of the partnership’s tax year.  Generate automatic 
mailout of Form 8804 & 8805. 
02 The Return Due Date (RDD) for Form 8804 is the 15th day of the 4th month (3 ½ months) from the 
end of the partnership’s tax year.  Generate automatic mailout of Form 8804 & 8805. 
03  The extended Return Due Date (RDD) for Form 8804 is the 15th day of the 6th month (5 ½ months) 
from the end of the partnership’s tax year.  Generate automatic mailout of Form 8804 & 8805. 
(28, 29 & 30) Forms 944, 944SS & 944PR -
00 Return not required to be mailed or filed 
01  Return required to mailed and filed annually 
02 Return required to be mailed and filed annually (Employment Code F) 
06 Virgin Islands (DO 60), Guam and American Samoa (DO 78) 
07 Puerto Rico (DO 60) filer – Form 944PR in Spanish; Otherwise, same as FRC 01 
11 944 Seasonal or intermittent filer 
Any line marked with # is for official use only  

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8A-53
 
Code Definition 
13 944-SS Seasonal or intermittent filer 
14 944PR Seasonal or intermittent filer 
(2) IMF Mail Filing Requirement Codes 
Form 1040—U.S. Individual Income Tax Return 
00 No return filed.  
01 Return not required to be mailed or filed 
02 Form 1040A or 1040EZ filer. (Package 50) 
03 Form 1040 with Schedule A and B only. Principal non-business filer (Package 10). 
04 Form 1040, Schedules A, B, D and E. Full non-business filer (Package 20). 
05 Form 1040, Schedules A, B, D, E, C and F. Form 1040 business filer (Package 30). 
06 Form 1040SS filer (Virgin Islands (DO 66), Guam, and American Samoa—DO 98). 
07 Form 1040PR filer (Puerto Rico—DO 66). 
08 Account is inactive. Return not required to be mailed or filed. 
09 Form 1040NR filer. 
10 Form Schedule F Business with Farm Package. (Package 40) 
11 IMF Child Care Credit present. (Package 00) 
12 Schedule R/RP present. (Package 80) 
13 Form 1040EZ 
14 1040A (Schedule R/RD present) 
15 1040EZ-TEL 
(3) EPMF Filing Requirement Codes 
Form FR DC 
5500 X 37 
5500-C T 38 
5500-EZ Z 31 
5500EZ N 31 
5500-R T 30 
5500-SF T 32 
Any line marked with # is for official use only 

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8A-54 
This Page for User Notes 
Any line marked with # is for official use only