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FAR and DFARS › FAR Part 4: Administrative and Information Matters › Subpart 4.2

FAR 4.203 Taxpayer identification information.

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.

In plain English

This section explains how contracting officers must handle a contractor's Taxpayer Identification Number (TIN) and type of organization. It requires that this information be attached to or annotated on the contract sent to the payment office, and that any post-award updates be forwarded within 7 days. For contractors, it means their TIN and organization type must be properly documented for payment purposes.

Applies to: Contracting officers and contractors

Key terms: Taxpayer Identification Number (TIN) · type of organization · payment office · solicitation provision · Federal Supply Schedule

Written by AI from this section's text. A guide, not legal advice: the text below rules.

The text

(a) If the contractor has furnished a Taxpayer Identification Number (TIN) when completing the solicitation provision at 52.204-3, Taxpayer Identification, or paragraph (l) of the solicitation provision at 52.212-3, Offeror Representations and Certifications— Commercial Products and Commercial Services, the contracting officer shall, unless otherwise provided in agency procedures, attach a copy of the completed solicitation provision as the last page of the copy of the contract sent to the payment office.

(b) If the TIN or type of organization is derived from a source other than the provision at 52.204-3 or 52.212-3(l), the contracting officer shall annotate the last page of the contract or order forwarded to the payment office to state the contractor's TIN and type of organization, unless this information is otherwise provided to the payment office in accordance with agency procedures.

(c) If the contractor provides its TIN or type of organization to the contracting officer after award, the contracting officer shall forward the information to the payment office within 7 days of its receipt.

(d) Federal Supply Schedule contracts. Each contracting officer that places an order under a Federal Supply Schedule contract (see Subpart 8.4) shall provide the TIN and type of organization information to the payment office in accordance with paragraph (b) of this section.

(e) Basic ordering agreements and indefinite-delivery contracts (other than Federal Supply Schedule contracts). (1) Each contracting officer that issues a basic ordering agreement or indefinite-delivery contract (other than a Federal Supply Schedule contract) shall provide to contracting officers placing orders under the agreement or contract (if the contractor is not required to provide this information to the System for Award Management)—

(i) A copy of the agreement or contract with a copy of the completed solicitation provision at 52.204-3 or 52.212-3(l) as the last page of the agreement or contract; or

(ii) The contractor's TIN and type of organization information.

(2) Each contracting officer that places an order under a basic ordering agreement or indefinite-delivery contract (other than a Federal Supply Schedule contract) shall provide the TIN and type of organization information to the payment office in accordance with paragraph (a) or (b) of this section.

Sections it refers to

  • 52.204-3 Taxpayer identification.
  • 52.212-3 Offeror Representations and Certifications—Commercial Products and Commercial Services.

Sections that refer to it

  • 13.106-3 Award and documentation.
  • 204.203 Taxpayer identification information.

← 4.202 Agency distribution requirements. · 4.401 [Reserved] →

Rule changes for FAR Part 4

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.

FAR 4.203 Taxpayer identification information · SpendQuery