FAR 4.203—Taxpayer identification information.
Plain-English Summary
FAR 4.203 explains how taxpayer identification information must be captured, documented, and passed to the payment office so the government can make proper payments and maintain accurate contractor records. It covers use of the contractor’s Taxpayer Identification Number (TIN) and type of organization information from solicitation representations, how to handle that information when it comes from another source, and what to do if the contractor provides it after award. The section also addresses special handling for Federal Supply Schedule orders and for basic ordering agreements and other indefinite-delivery contracts, including what information must be shared with other contracting officers and with the payment office. In practice, this rule is about making sure payment systems have the right contractor identity data, reducing payment errors, and ensuring consistency across awards and orders. It is primarily an administrative and data-transmittal requirement, but it has real operational importance because missing or late TIN information can delay payment processing or create mismatches in contractor records.
Key Rules
Attach solicitation TIN data
If the contractor provided its TIN in the solicitation representation at 52.204-3 or 52.212-3(l), the contracting officer must attach a copy of that completed provision to the copy of the contract sent to the payment office, unless agency procedures say otherwise.
Annotate alternate-source data
If the TIN or type of organization comes from a source other than the solicitation provision, the contracting officer must note that information on the last page of the contract or order sent to the payment office, unless agency procedures already provide the information another way.
Forward post-award updates quickly
If the contractor gives the TIN or type of organization after award, the contracting officer must send it to the payment office within 7 days of receiving it. This creates a short deadline to keep payment records current.
Special rule for FSS orders
For orders placed under a Federal Supply Schedule contract, the contracting officer placing the order must provide the TIN and type of organization information to the payment office using the method in paragraph (b).
BOA and IDIQ sharing duty
For basic ordering agreements and indefinite-delivery contracts other than Federal Supply Schedule contracts, the contracting officer issuing the agreement or contract must give ordering contracting officers either a copy with the completed solicitation provision attached or the contractor’s TIN and type of organization information, if the contractor is not required to enter it into SAM.
Ordering officers must pass data to payment
When placing an order under a basic ordering agreement or other non-FSS indefinite-delivery contract, the contracting officer must provide the TIN and type of organization information to the payment office under paragraph (a) or (b), as applicable.
Responsibilities
Contracting Officer
Attach or annotate the contract or order with the contractor’s TIN and type of organization information when required, forward post-award updates to the payment office within 7 days, and ensure the payment office receives the correct data for awards and orders.
Contracting Officer Issuing a Federal Supply Schedule Order
Provide the TIN and type of organization information to the payment office in accordance with the annotation method in paragraph (b).
Contracting Officer Issuing a Basic Ordering Agreement or Indefinite-Delivery Contract
Provide ordering contracting officers with either a copy of the agreement/contract including the completed solicitation provision or the contractor’s TIN and type of organization information, when the contractor is not otherwise required to provide it to SAM.
Contracting Officer Placing an Order Under a BOA or Non-FSS IDIQ
Transmit the contractor’s TIN and type of organization information to the payment office using the contract-copy method or annotation method required by paragraphs (a) or (b).
Contractor
Furnish accurate TIN and type of organization information in the solicitation representation or, if needed, provide it after award so the contracting officer can forward it to the payment office.
Payment Office
Use the TIN and type of organization information received from the contracting officer to support payment processing and contractor recordkeeping.
Agency
May establish procedures that provide an alternate way to supply the information, in which case the contracting officer follows those agency procedures instead of the default attachment or annotation method.
Practical Implications
This section is mainly about data accuracy and payment readiness: if the payment office does not have the right TIN and organization type, invoices and payments can be delayed or misapplied.
Contracting officers need a reliable process for copying, annotating, and forwarding TIN information, especially when the data is received after award or comes from a source other than the solicitation provision.
The 7-day forwarding requirement for post-award information is easy to miss, so offices should treat it as a time-sensitive administrative task.
For FSS orders and non-FSS IDIQ/BOA actions, the information may need to move through multiple contracting officers, so clear internal handoffs are important.
A common pitfall is assuming SAM or another system already contains the needed data; if agency procedures do not otherwise provide it, the contracting officer still has to ensure the payment office receives it in the required form.
Official Regulatory 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.