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48 CFR · Federal Acquisition Regulation and Defense supplement

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The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.

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36 sections with “proper invoices”

  • FAR 32.904 Determining payment due dates.
    …he following two events: (i) The 30th day after the designated billing office receives a proper invoice from the contractor (except as provided in paragraph (b)(3) of this section). (ii) The 30th day after Government acceptance of supplie…
  • FAR 32.905 Payment documentation and process.
    (a) General. Payment will be based on receipt of a proper invoice and satisfactory contract performance. (b) Content of invoices. (1) A proper invoice must include the following items (except for interim payments on cost reimbursement cont…
  • FAR 52.212-4 Contract Terms and Conditions—Commercial Products and Commercial Services.
    …anking information is not required to be on the invoice, in order for the invoice to be a proper invoice, the Contractor shall have submitted correct EFT banking information in accordance with the applicable solicitation provision, contract…
  • FAR 52.229-2 North Carolina State and Local Sales and Use Tax.
    …es and use taxes paid. The statement shall also include the cost of any tangible personal property withdrawn from the Contractor's warehouse stock and the amount of North Carolina State and local sales or use tax paid on this property by th…
  • FAR 52.232-12 Advance Payments.
    …nts for payment. Advance payments will be made under this contract (1) upon submission of properly certified invoices or vouchers by the Contractor, and approval by the administering office, ____ [Insert the name of the office designated un…
  • FAR 52.232-16 Progress Payments.
    …) Costs ordinarily capitalized and subject to depreciation or amortization except for the properly depreciated or amortized portion of such costs. (iv) Payments made or amounts payable to subcontractors or suppliers, except for— (A) Compl…
  • FAR 52.232-25 Prompt payment.
    …he following two events: (A) The 30th day after the designated billing office receives a proper invoice from the Contractor (except as provided in paragraph (a)(1)(ii) of this clause). (B) The 30th day after Government acceptance of suppl…
  • FAR 52.232-26 Prompt Payment for Fixed-Price Architect-Engineer Contracts.
    …he following two events: (A) The 30th day after the designated billing office receives a proper invoice from the Contractor (except as provided in paragraph (a)(1)(iii) of this clause). (B) The 30th day after Government acceptance of the …
  • FAR 52.232-27 Prompt Payment for Construction Contracts.
    …e date for making such payments is 14 days after the designated billing office receives a proper payment request. If the designated billing office fails to annotate the payment request with the actual date of receipt at the time of receipt,…
  • FAR 29.304 Matters requiring special consideration.
    …o furnish equipment in any of the States. Since leased equipment remains the contractor's property, States and local governments impose a wide variety of property, use, or other taxes on equipment leased to the Government. The amount of the…
  • FAR 31.205-33 Professional and consultant service costs.
    …es performed under any of the following circumstances are unallowable: (1) Services to improperly obtain, distribute, or use information or data protected by law or regulation (e.g., 52.215-1(e), Restriction on Disclosure and Use of Data).…
  • FAR 52.216-7 Allowable Cost and Payment.
    …ead; if not prescribed, insert “30th”] day after the designated billing office receives a proper payment request. In the event that the Government requires an audit or other review of a specific payment request to ensure compliance with th…
  • DFARS 252.232-7011 Payments in Support of Emergencies and Contingency Operations.
    …r (c) Invoice payments—(1) Due date. (i) Payment will be made as soon as possible once a proper invoice is received and matched with the contract and the receiving/acceptance report. (ii) If the contract does not require submission of an …
  • FAR 52.208-4 Vehicle Lease Payments.
    …ased in foreign countries: Vehicle Lease Payments (APR 1984) (a) Upon the submission of proper invoices or vouchers, the Government shall pay rent for each vehicle at the rate(s) specified in this contract. (b) Rent shall accrue from the…
  • FAR 52.232-1 Payments.
    …ed: Payments (APR 1984) The Government shall pay the Contractor, upon the submission of proper invoices or vouchers, the prices stipulated in this contract for supplies delivered and accepted or services rendered and accepted, less any de…
  • FAR 52.232-2 Payments Under Fixed-Price Research and Development Contracts.
    …lopment Contracts (APR 1984) The Government shall pay the Contractor, upon submission of proper invoices or vouchers, the prices stipulated in this contract for work delivered or rendered and accepted, less any deductions provided in this …
  • FAR 52.232-3 Payments Under Personal Services Contracts.
    …edule of this contract, at the rates prescribed, upon the submission by the Contractor of proper invoices or time statements to the office or officer designated and at the time provided for in this contract. The Government shall also pay th…
  • DFARS 232.903 Responsibilities.
    …possible, to the fullest extent permitted by law, with a goal of 15 days after receipt of proper invoices and all required documentation, including acceptance, and before normal payment due dates established in the contract (see 232.906(a))…
  • DFARS 251.102 Authorization to use Government supply sources.
    …use to honor requisitions from a contractor that is indebted to DoD and has failed to pay proper invoices in a timely manner.
  • DFARS 252.251-7000 Ordering from Government supply sources.
    …pply Sources (AUG 2012) (a) When placing orders under Federal Supply Schedules, Personal Property Rehabilitation Price Schedules, or Enterprise Software Agreements, the Contractor shall follow the terms of the applicable schedule or agreem…
  • FAR 4.705-3 Acquisition and supply records.
    …ent usage and status reports and equipment repair orders: Retain 4 years. (d) Expendable property records, reflecting accountability for the receipt and use of material in the performance of a contract: Retain 4 years. (e) Receiving and i…
  • FAR 49.112-1 Partial payments.
    …iews and the TCO's examination of the data indicate that the requested partial payment is proper, reasonable payments may be authorized in the discretion of the TCO up to— (1) 100 percent of the contract price, adjusted for undelivered acc…
  • DFARS 252.217-7007 Payments.
    …and less the amount of any previous payments. (f) All materials, equipment, or any other property or work in process covered by the progress payments made by the Government, upon the making of those progress payments, shall become the sole…
  • FAR 4.803 Contents of contract files.
    …, expediting, and production surveillance records. (15) Quality assurance records. (16) Property administration records. (17) Documentation regarding termination actions for which the contract administration office is responsible. (18) …
  • FAR 29.305 State and local tax exemptions.
    …r; and (ii) Either the contract price does not include the tax or, if the transaction or property is tax exempt, the contractor consents to a reduction in the contract price.
  • FAR 32.001 Definitions.
    …ntract financing by the agency. Unusual contract financing is financing that is legal and proper under applicable laws, but that the agency has not authorized contracting officers to use without specific reviews or approvals by higher manag…
  • FAR 41.301 Requirements.
    … meter locations, the location of the new utility facilities to be constructed on Federal property by the Federal agency, and any required new connection facilities on either side of the delivery point to be constructed by the utility suppl…
  • FAR 47.303-17 Contractor-prepaid commercial bills of lading, small package shipments.
    …ve for the account of, and at the risk of, the Government. The supplies become Government property when loaded on the carrier's equipment and the contractor has obtained the carrier's receipt. The contractor pays the transportation charges …
  • FAR 52.216-5 Price Redetermination—Prospective.
    …d; (ii) The total costs (estimated to the extent necessary) reasonably incurred for, and properly allocable solely to, the supplies delivered (or services performed) and accepted by the Government and for which final prices have not been e…
  • FAR 52.216-6 Price Redetermination—Retroactive.
    …d; (ii) The total costs (estimated to the extent necessary) reasonably incurred for, and properly allocable solely to, the supplies delivered (or services performed) and accepted by the Government and for which final prices have not been e…
  • FAR 52.216-16 Incentive Price Revision—Firm Target.
    …d; (ii) The total costs (estimated to the extent necessary) reasonably incurred for, and properly allocable solely to, the supplies delivered (or services performed) and accepted by the Government and for which final prices have not been e…
  • FAR 52.216-17 Incentive Price Revision—Successive Targets.
    …ed; (ii) The total cost (estimated to the extent necessary) reasonably incurred for, and properly allocable solely to, the supplies delivered (or services performed) and accepted by the Government and for which final prices have not been e…
  • FAR 52.216-26 Payments of Allowable Costs Before Definitization.
    …ct; (iii) Direct labor; (iv) Direct travel; (v) Other direct in-house costs; and (vi) Properly allocable and allowable indirect costs as shown on the records maintained by the Contractor for purposes of obtaining reimbursement under Gov…
  • FAR 52.232-4 Payments Under Transportation Contracts and Transportation-Related Services Contracts.
    …ices Contracts (APR 1984) The Government shall pay the Contractor upon the submission of properly certified invoices or vouchers, the amount due for services rendered and accepted, less deductions, if any, as herein provided. (End of clau…
  • FAR 52.232-8 Discounts for Prompt Payment.
    …, the due date shall be calculated from the date the designated billing office receives a proper invoice, provided the agency annotates such invoice with the date of receipt at the time of receipt. For the purpose of computing the discount …
  • DFARS 252.243-7002 Requests for Equitable Adjustment.
    …or that have been separately claimed. All indirect costs included in the request shall be properly allocable to the change in accordance with applicable acquisition regulations. (b) In accordance with 10 U.S.C. 3862(a), any request for equ…

FAR (chapter 1)

DFARS (chapter 2, Defense)

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Rule changes in progress: FAR, DFARS. Terms: glossary.