Part 21 - Customer Account Services

An IRM procedural update, effective 01/05/2026, was issued to revise IRM 21.1.3 regarding Taxpayer Advocate Service (TAS) Changes to Form E-911 and TAS Procedures.

An IRM procedural update, effective 11/18/2025, was issued to revise IRM 21.1.3 regarding Taxpayer Services (TS) Live Chat

An IRM procedural update, effective 04/28/2025, was issued to revise IRM 21.2.1 regarding Systems Updates

An IRM procedural update, effective 03/26/2026, was issued to revise IRM 21.2.3 regarding TDS Transcript Updates

An IRM procedural update, effective 04/01/2026, was issued to revise IRM 21.3.3 regarding Clarified Status 22 Correspondence Routing to ACSS; CCP Case Handling by AM

An IRM procedural update, effective 02/03/2026, was issued to revise IRM 21.3.3 regarding Removed the Need for AM to Send STS 72 Cases to Insolvency Prior to Taking Account Actions

An IRM procedural update, effective 01/09/2026, was issued to revise IRM 21.3.3 regarding Updated TAS Referral Guidance

An IRM procedural update, effective 11/14/2025, was issued to revise IRM 21.3.10 regarding Removal of Links and ID.me Information

An IRM procedural update, effective 01/28/2026, was issued to revise IRM 21.3.10 regarding Updates to the TAS Criteria

An IRM procedural update, effective 04/22/2026, was issued to revise IRM 21.3.10 regarding Updates to Transfer Guidance; Form 8655.

An IRM procedural update, effective 02/12/2026, was issued to revise IRM 21.4.1 regarding Refund Research Direct Deposit

An IRM procedural update, effective 04/01/2026, was issued to revise IRM 21.4.1 regarding Updates to Refund Research

An IRM procedural update, effective 05/11/2026, was issued to revise IRM 21.4.1 regarding Various Changes to Refund Research

An IRM procedural update, effective 01/29/2026, was issued to revise IRM 21.4.1 regarding Various Changes to Refund Research

An IRM procedural update, effective 10/21/2025, was issued to revise IRM 21.4.1 regarding Various Changes to Refund Research

An IRM procedural update, effective 05/11/2026, was issued to revise IRM 21.4.2 regarding Various Changes to Refund Trace

An IRM procedural update, effective 04/01/2026, was issued to revise IRM 21.4.2 regarding Various Changes to Refund Trace

An IRM procedural update, effective 02/02/2026, was issued to revise IRM 21.4.2 regarding Various Changes to Refund Trace

An IRM procedural update, effective 10/21/2025, was issued to revise IRM 21.4.2 regarding Various Changes to Refund Trace

An IRM procedural update, effective 05/11/2026, was issued to revise IRM 21.4.3 regarding Various Changes to Returned Refunds/Releases

An IRM procedural update, effective 04/01/2026, was issued to revise IRM 21.4.3 regarding Various Changes to Returned Refunds/Releases.

An IRM procedural update, effective 02/06/2026, was issued to revise IRM 21.4.3 regarding Various Changes to Returned Refunds/Releases

An IRM procedural update, effective 05/11/2026, was issued to revise IRM 21.4.4 regarding Various Changes to Manual Refunds

An IRM procedural update, effective 02/09/2026, was issued to revise IRM 21.4.4 regarding Various Changes to Manual Refunds

An IRM procedural update, effective 04/01/2026, was issued to revise IRM 21.4.4 regarding Various Changes to Manual Refunds.

An IRM procedural update, effective 12/09/2025, was issued to revise IRM 21.5.6 regarding Various Freeze Code Updates.

An IRM procedural update, effective 01/20/2026, was issued to revise IRM 21.5.6 regarding Various Freeze Code Update

An IRM procedural update, effective 02/12/2026, was issued to revise IRM 21.5.6 regarding Freeze Code Direct Deposit

An IRM procedural update, effective 04/01/2026, was issued to revise IRM 21.5.6 regarding Various Freeze Code Updates

An IRM procedural update, effective 01/12/2026, was issued to revise IRM 21.5.9 regarding Changes to TAS Procedures for Carrybacks

An IRM procedural update, effective 02/06/2026, was issued to revise IRM 21.5.13 regarding Added Information for IRC 965 Employees Regarding the IRC 965 (i) Penalties and CP 234 Accounts

An IRM procedural update, effective 05/21/2026, was issued to revise IRM 21.5.13 regarding IRC 965 Employees Only: IRM Reference Updates; Word Corrections; Editorial Changes Made Throughout the IRM

An IRM procedural update, effective 03/31/2026, was issued to revise IRM 21.5.13 regarding RC 965 Case Reassignment Number (BMF) and Added Additional Information for Referrals IMF/BMF; Corrected Reason Code for Adjustments on IRC 965 (i) Election Denials

An IRM procedural update, effective 02/06/2026, was issued to revise IRM 21.6.3 regarding Various Updates to Credits Including Adoption Credit Changes Due to OBBBA

An IRM procedural update, effective 04/03/2026, was issued to revise IRM 21.6.3 regarding Various Updates to Credits Procedures Including Clean Vehicle Credits.

An IRM procedural update, effective 10/08/2025, was issued to revise IRM 21.6.3 regarding Withholding Credit Processing Clarification; Update to CTC Amount for 2025; Termination of CVC AS of September 30, 2025

An IRM procedural update, effective 01/12/2026, was issued to revise IRM 21.6.4 regarding OBBBA Changes Including Additional Deductions and Casualty and Theft Losses, Update to TAS Procedures, Updated Internal Controls

An IRM procedural update, effective 02/09/2026, was issued to revise IRM 21.6.5 regarding Adding Trump Accounts to Individual Retirement Arrangements.

An IRM procedural update, effective 01/02/2026, was issued to revise IRM 21.7.1 regarding Changes to Referrals via Accounts Management Service (AMS) E-911 Application.

An IRM procedural update, effective 11/21/2025, was issued to revise IRM 21.7.1 regarding Editorial Updates; Form 709-NA Added for Estate and Gift Inquiries; IDRS Number for Routing to OAMC Large Corp Updated.

An IRM procedural update, effective 04/30/2026, was issued to revise IRM 21.7.1 regarding EFTPS Same Day Payment Guidance for IMF and BMF Updated; IRM Link Updated for Electronic Funds Withdrawal (Direct Debit) and Credit Card Payment Tracer.

An IRM procedural update, effective 12/01/2025, was issued to revise IRM 21.7.2 regarding 1099-MISC and 1099-NEC Requirements (Section 70433); No Tax on Tips (Section 70201) and No Tax on Overtime (Section 70202) of One, Big, Beautiful Bill Act (OBBBA)

An IRM procedural update, effective 12/12/2025, was issued to revise IRM 21.7.2 regarding Added an Exception on OCEA Routing Cases and the Annual Updates for SS Tax Wage Base and CT-1 (Tier I and Tier II) Limits.

An IRM procedural update, effective 01/30/2026, was issued to revise IRM 21.7.2 regarding Form 941 and Form 943 Aggregate Return Filer Box and Instructions on Cases With -Q Freeze that are Reviewed for Limitations of Section 70605(d) of OBBBA

An IRM procedural update, effective 11/24/2025, was issued to revise IRM 21.7.2 regarding Handling RAAS Filtering Criteria for Risked Erc-Exam Potential Cases; Caution for Section 70605(d) With a P- Freeze; Link to 105c Cases That Meet IRC 6532(a).

An IRM procedural update, effective 02/19/2026, was issued to revise IRM 21.7.2 regarding Instructions for Cases Returned From HQ Reserved 9

An IRM procedural update, effective 05/21/2026, was issued to revise IRM 21.7.2 regarding IR-2026-58 IRS Announces New Option for Certain Taxpayers to Request More Time After ERC Claim Disallowance.

An IRM procedural update, effective 01/02/2026, was issued to revise IRM 21.7.2 regarding Replaced Paragraph 4 and 5 Providing Taxpayer Advocate Service (TAS) Guidelines and Information on Preparation of Form 911/e-911

An IRM procedural update, effective 11/05/2025, was issued to revise IRM 21.7.2 regarding Section 70605(d) of One, Big, Beautiful Bill

An IRM procedural update, effective 08/01/2025, was issued to revise IRM 21.7.2 regarding Updated IDRS Number to Assign Form 5884-C and Form 5884-D Cases for Processing.

An IRM procedural update, effective 07/10/2025, was issued to revise IRM 21.7.2 regarding Update Regarding ERC Withdrawal

An IRM procedural update, effective 03/04/2026, was issued to revise IRM 21.7.2 regarding Update to Various IDRS Numbers; Routing Address Changes; Obsolete Publication and Forms.

An IRM procedural update, effective 01/02/2026, was issued to revise IRM 21.7.3 regarding TAS 911/e-911 Changes; 2025 Credit Reduction State Data; 2025 State Wage Base for Unemployment.

An IRM procedural update, effective 01/02/2026, was issued to revise IRM 21.7.4 regarding Changes to Referrals via Accounts Management Service (AMS) E-911 Application; Updated Date for Perfecting Form 6765 Research Credit Claims to January 10, 2027.

An IRM procedural update, effective 12/04/2025, was issued to revise IRM 21.7.4 regarding Legislative Updates Based on the One Big Beautiful Bill Act Impacting Energy Credits, Login.gov AS a New Credentialing Service Provider, Routing Update Form 8752, Computing Credit Interest on Elective Payment Elections, Form 1099-K Reporting Changes Due to OBBBA, NOL Carryforward Resource Information Updated.

An IRM procedural update, effective 05/08/2026, was issued to revise IRM 21.7.4 regarding New Subsections Added for Form 1041, 1065, and 1120 Income Tax Adjustments Under Section 70605(e) of OBBBA - ERC Denials; Updated Guidance for Form 1065 and Form 1120-S CAT-A Referrals per Notice 2026-17; Updated Deadline to File Form 1065 AAR for Retroactive IRC 174A Elections and Late IRC 280C Elections; Updated OAMC Routing Information for Form 8752; Updated Reassignment IDRS Number for Large Partnership.

An IRM procedural update, effective 12/16/2025, was issued to revise IRM 21.7.4 regarding Removed Login.gov AS an Approved Credentialing Service Provider (CSP), CAT-A Procedures for Forms 1120-S, 1065, and 8082 Updated, IDRS Routing Number for Form 6765 Research Credit Claims Updated.

An IRM procedural update, effective 03/05/2026, was issued to revise IRM 21.7.11 regarding Added Paragraphs to Explain the Programming Error That Occurred and Resulted in CP234 Cases to Be Created and the Systemic Closure That Was Done for These Cases

An IRM procedural update, effective 01/30/2026, was issued to revise IRM 21.7.11 regarding CP 234 Cases on IRC 965 Accounts Should Be Reassigned to IRC 965 SMEs

An IRM procedural update, effective 01/09/2026, was issued to revise IRM 21.7.11 regarding Updated TAS Referral Guidance

An IRM procedural update, effective 11/21/2025, was issued to revise IRM 21.7.13 regarding Date of Death Check; EIN Prefix 41; International EIN Phone Applications and Foreign Entity; Electronic Signatures; Form SS-4 Application Status; Second Name/Sort Name Line Changes

An IRM procedural update, effective 03/16/2026, was issued to revise IRM 21.7.13 regarding Form SS-4 Line 7b for Foreign Responsible Party; Determining If Form SS-4 Is International; Forms SS-4 Missing Information; EIN International Phones; Removed PR and SS Employment Tax Form References; Trust Mandatory Abbreviations; Procedural Clarifications; Editorial Changes

An IRM procedural update, effective 04/30/2026, was issued to revise IRM 21.7.13 regarding Internet EIN Prefixes; Internal Requests for Copies of Forms SS-4 Processed 1938 - 1998; Form SS-4 Processing; Entity Update Requests.

An IRM procedural update, effective 05/14/2026, was issued to revise IRM 21.7.13 regarding Online CP 575 Notice Issues - Taxpayer Can Provide EIN, Type of Entity - LLC Form SS-4 Processing

An IRM procedural update, effective 01/09/2026, was issued to revise IRM 21.7.13 regarding Procedural Clarifications; Taxpayer Advocate Service Guidelines; Faxing Letter 147c; Forms SS-4 Received by Fax During a Phone Call; TPD EIN Posted to Masterfile; Employment Tax Filing Requirement Change Requests

An IRM procedural update, effective 04/03/2026, was issued to revise IRM 21.8.1 regarding IMF International.

An IRM procedural update, effective 11/17/2025, was issued to revise IRM 21.8.1 regarding IMF International Live Chat

An IRM procedural update, effective 02/24/2026, was issued to revise IRM 21.10.1 regarding Add Wording to IRM 21.10.1.9.6.1(5).

An IPU titled No Longer Using a Turnaround Document for Rebuttals was issued for IRM 21.10.1 on 03/02/2026.