Frequently Asked Questions - About Moving to G-Invoicing

No. G-Invoicing serves as the information broker or conduit for your agency to send data about IGT Buy/Sell transactions to your trading partners.

Agencies may choose to use G-Invoicing interfaces or the G-Invoicing User Interface (UI) for data entry, retrieval, and exchange. However, we encourage you to use the G-Invoicing interfaces through your financial management system or ERP (Enterprise Resource Planning).

G-Invoicing works even if your agency does not have a financial management or ERP system. You can use G-Invoicing for manual data entry via the G-Invoicing UI.

With the help of the Intragovernmental Transactions Working Group (ITWG), we have developed standard data elements and data type requirements for General Terms and Conditions (GT&C) and for Orders.

You may want to compare them to what you are using now. You can find them in the Fiscal Service Data Registry.

No. Your agency's accounting system is still the official source of record for Order balances. Your agency's accounting system is the definitive source for financial reporting, reconciling Purchase Orders, ADA monitoring, and so on.

You can see remaining balances in G-Invoicing, but transaction events could happen throughout the day and may not yet be updated or refreshed in G-Invoicing.

You will still need to use G-Invoicing and could use the G-Invoicing Automated Interfaces or elect to use the G-Invoicing UI (manual input into G-Invoicing). If you have more questions please contact us at IGT@fiscal.treasury.gov.

We have invited relevant vendors (SAP, Oracle, Momentum, etc.) to participate in FMSC subgroups discussing requirements. We also encourage you to discuss G-Invoicing with your financial management or ERP (Enterprise Resource Planning) vendors. If you and your vendors want to understand more about G-Invoicing, look at the resources we have published about the initiative.

Agencies are still expected to communicate with their trading partners, even outside of G-Invoicing. Agencies should also be familiar with their trading partner’s implementation plan and approach to using G-Invoicing. G-Invoicing offers a lot of flexibility for agencies. Having a good understanding of how your trading partner is planning to utilize G-Invoicing will set you up to be successful in G-Invoicing.

Also, agencies may utilize the Constructive Receipt Days field on Orders in G-Invoicing, which will automatically generate an approval on the trading partner’s behalf after the predetermined number of review days has passed.

No. IPAC will continue to provide settlement of funds between federal agencies for non-intragovernmental Buy/Sell activity.

We have enhanced both IPAC and G-Invoicing to support the government-wide approach for reporting performance and settlement of intragovernmental (IGT) Buy/Sell transactions. Effective October 1st, 2025 (FY26), Fiscal Service will be turning off the ability to use IPAC directly for IGT Buy/Sell settlements. All agencies will be required to work through G-Invoicing for settlement of IGT Buy/Sell transactions.

No. G-Invoicing will only handle IGT Buy/Sell transactions.

Other payments (such as grants, pensions, and loans) will continue to be processed through IPAC without G-Invoicing.

Yes. You will still be able to ask for and download data about earlier transactions in IPAC with the IPAC Transaction Download Report.

Yes, the process is detailed within the G-Invoicing User’s Guide, which can be downloaded from within G-Invoicing. In addition, we offer monthly Webinar training (Bureau of the Fiscal Service - Training for Performance and finally the FIDS standards can be found, under FIDS section: G-Invoicing: Resources

No. When you and your trading partners are in G-Invoicing, settlement requests will be triggered by your trading partners’ performance transactions.

Like today, all settlement requests will appear in your agency's CARS Account Statement on the next business day.

At the end of each business day, payments will be validated through SAM and will then post in CARS the next day.

In the CARS Account Statement details, you will be able to find the Document Reference Number from each IPAC to ensure that the money has been recorded properly. In the IPAC website, you will still have access to the same IPAC reports that you currently use for cash reconciliations.

IPAC settlement will happen on the combination of Transaction Date and FOB Point. Depending on the FOB Point in the order, the Transaction Date will match the Accomplished Date in the IPAC.

Settlement may occur beyond an Order's Period of Performance.

If the settlement passes all validations, G-Invoicing will update information about the Order balance. The performance transaction will tie the payment or collection back to the referenced Order. The Order will be updated to reflect the settlement. You will be able to download the remittance advice from G-Invoicing.

Note, however, that the settlement request must be within the time allowed for the TAS (up to 5 years).

Yes. G-Invoicing and IPAC support both intra-ALC and intra-TAS trading. You must create GT&Cs and Orders with the appropriate ALC, Organizational Filters, and TAS information.

The audit trail in G-Invoicing captures and shows who changed the document and when (username, date). However, G-Invoicing does not track changes made to each field in the document. If a document is changed, G-Invoicing notifies all users who have access to the document that it was changed.

G-Invoicing sends an email to users when documents they have access to are created, changed, or require action. The email includes some information to identify the document.

No. Agencies cannot modify the email template.

Yes. In Release 2.3 (deployed in Summer 2019), Sellers or Servicing Agencies can report performance types of shipped, estimated delivery, and delivery. Buyers and Requesting Agencies will be able to report performance types of received and acceptance.

In G-Invoicing, chargebacks, refunds, and adjustments are handled by adjusting a reported performance.