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All IPAC transactions, whether submitted manually or via bulk file, must be fully processed in the IPAC system before 11:59 PM (EST) on September 30, 2021 to be dated as FY21. Any transactions not fully processed until 12:00 A.M. (EST) or after on October 1, 2021 will be dated as FY22.

Bulk files, for example, could possibly take a couple of hours to process to completion so please allow sufficient processing time when submitting any IPAC transactions at year-end. We advise agencies to obtain confirmation in IPAC that the bulk file has completed successfully before the end of the accounting period cutoff.

Per the TFM for Buy/Sell transactions, Volume 1 Part 2 Chapter 4700 Appendix 8, “Treasury has established an IPAC cutoff date that requires all IPAC Buy/Sell transactions to be successfully processed no fewer than three business days before the close of each month or five business days before the close of year-end reporting.”

G-Invoicing is the long-term solution for Federal Program Agencies (FPAs) to manage their intragovernmental (IGT) Buy/Sell transactions. G‑Invoicing helps (or will help) agencies and their trading partners:

  • Negotiate and accept General Terms and Conditions (GT&C) agreements
  • Broker orders
  • Exchange performance information
  • Validate settlement requests through IPAC

FPAs must implement G-Invoicing for New Orders by October 2022. The mandated implementation deadline of October 2022 for New Orders includes Orders with a Period of Performance beginning October 1, 2022 or later.

FPAs must implement G-Invoicing for "In-Flight" Orders by October 2023. The mandated implementation deadline of October 2023 for "In-Flight" Orders includes the conversion of Orders with an open balance and a Period of Performance extending beyond September 30, 2023.

FPAs must submit quarterly implementation status updates to Treasury by providing updated plans and/or Attachment As to the IGT mailbox (

Treasury will help agencies get ready for and start using G-Invoicing. (See more on the Enrollment page.)

Log In Enroll Now

Benefits of G-Invoicing

Better communication between trading partners: Using G Invoicing to communicate, trading partners share a common platform and a clear record of their negotiations.

Transparency: G-Invoicing supports each phase of the IGT buy/sell lifecycle. This common repository will decrease differences between agencies.

Common data standard: G-Invoicing replaces the various terms and forms that agencies now use. Standard terms reduce misunderstandings.

Agreed-upon processes: Common processes support timely and accurate accounting.

Streamlined settlements of funds in IPAC: With performance reporting in G-Invoicing, trading partners can settle more quickly and efficiently.


Treasury Financial Manual (TFM) Sections Interface Specifications  Data Standards Interagency (IAA) Forms Implementation Timelines for Enterprise Resource Planning and Software Providers G-Invoicing Playbook G-Invoicing Rules of Engagement GINV-IPAC Settlement Data Element Mapping Intragovernmental Transactions Working Group (ITWG) Agency Implementation Template G-Invoicing Program Guide G-Invoicing Trading Partner Directory



January Newsletter

Issue 7, January 2020

March Newsletter

Issue 6, March 2019

October Newsletter

Issue 5, October 2018

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Last modified 08/30/21