Title 31 › SUBTITLE III — FINANCIAL MANAGEMENT › CHAPTER 39 — PROMPT PAYMENT › § 3901
Makes rules about government payments, invoices, and a few key words. Agency means the same as in Title 5 and also covers an entity the agency head says is acting for the agency. Business concern means a person running a business or a nonprofit that acts as a contractor. Proper invoice means the bill plus whatever supporting papers OMB or the agency requires. For when payment is due and when late interest starts, the agency is treated as having received an invoice on the later of: when the designated office actually gets a proper invoice, or the 7th day after the goods were delivered or services finished, unless the agency already accepted them sooner or the contract gives a longer acceptance period set by the contracting officer (brand-name resale contracts are handled differently). If the agency does not mark the receipt date when it gets the invoice, the invoice is treated as received on its own date. A payment counts as made on the date a check is dated or an electronic transfer is sent. A rental contract is treated as a contract to acquire the property. The rules apply to the Tennessee Valley Authority, but the TVA uses its own regulations and must carry out these rules for its contracts. They also apply to the United States Postal Service, with the Postmaster General issuing USPS procurement regulations, solicitation terms, and contract clauses. The chapter applies to the District of Columbia Courts except for section 3907. Interest-penalty claims for those courts are filed the same way as other contract claims. Generally interest penalties stop after 1 year or when a claim is filed, whichever comes first; if D.C. claims law does not allow interest, interest under this chapter will run from the filing date until payment. If D.C. law allows interest on a claim, that interest can cover unpaid payments and unpaid penalties. Except for section 3904, this chapter does not require interest on payments withheld because of a dispute over the amount or contract compliance; those disputes and any interest follow D.C. claims laws.
Full Legal Text
Money and Finance, Source: USLM XML via OLRC
Legislative History
Reference
Citation
31 U.S.C. § 3901
Title 31, Money and Finance
Last Updated
Aug 21, 2026
Release point: 119-102