IRS Publication 5041 – IRS Form, Instructions, Pubs 2026

IRS Publication 5041 – Federal agencies rely on standardized processes for interagency reimbursable work. IRS Publication 5041 delivers essential IRS-specific guidance for the Treasury’s official Interagency Agreement (IAA) forms when the IRS serves as the servicing (seller) agency. This short but authoritative 2-page document (revised August 2012, Catalog Number 59895T) remains the current official supplemental resource listed on IRS.gov as of February 2026.

Download IRS Publication 5041 PDF directly:
https://www.irs.gov/pub/irs-pdf/p5041.pdf

What Is an Interagency Agreement (IAA) and Why Does It Matter?

An IAA formalizes buy/sell transactions between federal agencies under authorities such as the Economy Act. One agency (Requesting Agency / Buyer) pays another (Servicing Agency / Seller) for goods or services on a reimbursable basis. Payments typically flow through the Intra-governmental Payment and Collection (IPAC) system.

The standard Treasury forms are:

• Form 7600A – General Terms and Conditions (GT&C) Section: Sets the overarching framework (roles, authorities, period, etc.).
• Form 7600B – Order Requirements and Funding Information (Order) Section: Details the specific order, funding, performance, and modifications.

Important 2026 Context: The Bureau of the Fiscal Service’s G-Invoicing platform is now the mandatory electronic system for most intragovernmental buy/sell transactions (full transition required by October 1, 2025). Legacy paper Forms 7600A/7600B may still be used in limited cases or during transition. When paper forms are required and the IRS is the seller, Publication 5041 provides the binding supplemental rules that override or supplement general Treasury instructions.

Purpose of IRS Publication 5041

Publication 5041 tells IRS personnel exactly how to complete the Seller side of the forms. It states clearly:

“In most cases, use the Treasury FMS Instructions to complete the Seller side of the forms unless more specific IRS supplemental instructions have been provided in this publication.”

The publication focuses on funds-in reimbursable agreements (IRS provides the service and gets reimbursed) and emphasizes strict fiscal-year controls, advance-payment restrictions, and exact matching of financial totals.

Key IRS Supplemental Instructions from Publication 5041

Form 7600A – General Terms and Conditions (GT&C)

• GT&C must be completed and signed each fiscal year as a new action.
• IAA Number: If the Requesting Agency does not establish it, the IRS (Servicing Agency) enters its own Agreement Tracking Number (e.g., RA2012B001) in the format -0000-__.
• Block 2 (Servicing Agency Agreement Tracking Number) = Reimbursable Agreement Number.
• Block 3 (Assisted Acquisition Agreement) – Rare for funds-in agreements; requires CFO organization approval if advances are involved.
• Block 5 (Agreement Period) – Up to one year but may not extend past September 30 of the funding year (limited exceptions for certain direct-charge obligations).
• Block 6 (Recurring Agreement) – Informational only; a new reimbursable agreement is required annually.
• Block 7 (Agreement Type) – IRS accepts only single orders per 7600A-B for funds-in reimbursable agreements.
• Block 8 (Advance Payments Allowed?) – Allowed on an exception basis only, with prior approval from the Director, Office of Financial Reports.
• Block 9 (Estimated Agreement Amount) – Must be greater than or equal to the TOTAL Modified Obligation in Block 26 of Form 7600B; amend if necessary.
• Block 10 (Statutory Authority) – Use the Economy Act (31 U.S.C. §1535) unless a more specific authority applies (examples: Working Capital Funds, Foreign Assistance Act §632(b), Federal Buildings Fund 40 U.S.C. §592(b)(2)).
• Block 12 (Roles & Responsibilities) – Mandatory IRS text: “The IRS will not IPAC customers nor will customers IPAC the IRS during the last three business days of the month.”
• Blocks 17 & 18 (Assisted Acquisition Organizations) – Complete only in the rare assisted-acquisition cases requiring advances and CFO approval.
• Block 23 (Agency Official, Servicing Agency) – Business Unit Program Official provides name, title, phone, fax, email and signs.

Form 7600B – Order Requirements and Funding Information

• Block 26 (Funding Modification Summary) totals must exactly match Block 28 line-item totals for every new order or modification.
• Block 27 (Performance Period) – Enter the estimated completion date. IRS agreements operate on a fiscal-year basis and DO NOT cross fiscal years.
• Block 28:
  • Object Class Code → Leave blank.
  • BPN → Enter 040539587 (IRS Business Partner Number).
  • BPN + 4 → Leave blank.
  • Additional Accounting Classification → Leave blank.
  • Type of Service Requirements → Do not select “not applicable”; the agreement is either severable or non-severable.
• Block 28 Breakdown of Reimbursable Line Costs must align perfectly with Block 26.
• Signatures:
  • Block 37: Business Unit Program Official.
  • Block 38: Business Unit Funding Official.
  • Block 39: BFC Government Payables and Receivables Section Chief (mark signature line N/A).
  • Block 40: Director, Budget Execution (required signature).
    Additional Director, Office of Financial Reports signature required if there is an advance or if revenue recognition methodology differs from “Monthly per work completed and invoiced.”

How to Use Publication 5041 in Practice (Step-by-Step)?

1. Download the latest fillable Forms 7600A and 7600B from the Bureau of the Fiscal Service website (fiscal.treasury.gov).
2. Complete the forms following general Treasury instructions for the Seller side.
3. Apply every IRS-specific rule listed in Publication 5041.
4. Ensure all financial totals match exactly and fiscal-year rules are followed.
5. Obtain all required IRS signatures (Program Official, Funding Official, Budget Execution Director, and Office of Financial Reports when applicable).
6. Route the completed IAA through normal IRS reimbursable agreement channels.

Frequently Asked Questions (FAQs)

Is Publication 5041 still current in 2026?
Yes. IRS.gov continues to list the August 2012 revision as the active document.

Does this apply when IRS is the buyer?
No. Publication 5041 provides instructions only when the IRS is the Servicing/Seller agency.

Can we still use paper 7600A/7600B forms?
Limited use may continue during the G-Invoicing transition, but agencies should prioritize G-Invoicing. When paper forms are used with IRS as seller, follow Pub 5041 exactly.

Where do I find the official forms today?
Bureau of the Fiscal Service – fiscal.treasury.gov (search for Form 7600A and 7600B).

What if I need advance payments?
Advance payments require explicit approval from the Director, Office of Financial Reports and are granted only on an exception basis.

Final Takeaway

IRS Publication 5041 ensures accurate, compliant, and auditable interagency agreements when the IRS provides reimbursable services to other federal agencies. By following these supplemental instructions alongside the standard Treasury forms, agencies avoid common pitfalls related to fiscal-year crossing, IPAC timing, advance payments, and financial-total mismatches.

For the most current guidance, always start with the official PDF on IRS.gov and cross-reference the Bureau of the Fiscal Service G-Invoicing resources. Proper use of Publication 5041 protects both the IRS and its partner agencies while maintaining strict adherence to federal financial rules.

Need the forms or further assistance?
Visit:

• IRS Publication 5041 → https://www.irs.gov/pub/irs-pdf/p5041.pdf
• Treasury IAA Forms & G-Invoicing → fiscal.treasury.gov/g-invoice

This guide is based solely on official IRS and Treasury sources and is current as of February 2026. Always verify with your IRS Office of Financial Reports or Business Unit finance team for agency-specific procedures.