FAR 52.204-3—Taxpayer Identification.
Plain-English Summary
FAR 52.204-3, Taxpayer Identification, is a solicitation provision that requires offerors to provide taxpayer identification information so the Government can meet tax reporting and debt collection obligations. It covers the definition of a common parent and a taxpayer identification number (TIN), the requirement to submit TIN-related information, the Government’s authority to use the TIN for collecting and reporting delinquent amounts, and the possibility of IRS matching to verify the TIN when payment reporting rules apply. The provision also requires the offeror to identify the type of organization it is, such as a sole proprietorship, partnership, corporate entity, government entity, foreign government, international organization, or other entity. In addition, it asks whether the offeror is owned or controlled by a common parent and, if so, to provide the parent’s name and TIN. The provision recognizes that some offerors do not need a TIN, including certain foreign entities and government instrumentalities, and allows an offeror to state that a TIN has been applied for. In practice, this provision supports accurate IRS reporting, helps the Government validate vendor identity, and reduces payment and compliance problems later in contract administration.
Key Rules
TIN information is required
All offerors must provide the TIN-related information requested in the provision, including the actual TIN, a statement that one has been applied for, or a valid reason why a TIN is not required. This requirement exists to support debt collection and IRS reporting obligations.
Failure can affect payment
If the resulting contract is subject to FAR 4.904 payment reporting requirements, failure or refusal to furnish the required information may result in a 31 percent reduction of payments otherwise due under the contract. This makes accurate completion of the provision financially important, not just administrative.
Government may use TIN for collection
The Government may use the TIN to collect and report delinquent amounts arising from the offeror’s relationship with the Government. The provision also allows the TIN to be matched with IRS records to verify accuracy when payment reporting rules apply.
Identify organization type
The offeror must indicate its type of organization from the listed categories, such as sole proprietorship, partnership, corporate entity, government entity, foreign government, international organization, or other. This helps the Government determine how the offeror should be treated for tax and reporting purposes.
Common parent disclosure
If the offeror is owned or controlled by a common parent, it must identify that parent and provide the parent’s name and TIN. If there is no common parent relationship, the offeror must affirmatively state that fact.
Limited TIN exceptions apply
Certain offerors may state that a TIN is not required, including nonresident aliens, foreign corporations, or foreign partnerships without effectively connected U.S. income and without a U.S. office or fiscal paying agent, as well as foreign government instrumentalities and Federal Government instrumentalities.
Responsibilities
Offeror
Complete the provision accurately by providing the TIN, stating that a TIN has been applied for, or selecting a valid exception if no TIN is required. The offeror must also identify its organization type and disclose any common parent relationship, including the parent’s name and TIN when applicable.
Contracting Officer
Include the provision when prescribed by FAR 4.905 and ensure the solicitation collects the information needed for tax reporting and debt collection purposes. The contracting officer should also recognize when the contract may be subject to FAR 4.904 payment reporting consequences if the offeror does not provide the required information.
Government
Use the TIN for debt collection and, when applicable, for IRS reporting and verification. The Government must also process the offeror’s organization-type and common-parent information to support accurate vendor records and compliance with reporting rules.
IRS
Provide the regulatory framework referenced by the provision and receive reported payment information from the Government when applicable. The IRS also supports TIN validation through matching processes used by the Government.
Practical Implications
Offerors should treat this as a required compliance item, not a formality, because missing or incorrect TIN data can delay award or affect payments.
Foreign entities need to check the exception language carefully; not every foreign offeror is exempt, and the exemption depends on the specific facts stated in the provision.
The common-parent question matters for consolidated tax filers, so affiliates should coordinate before submitting the solicitation response to avoid inconsistent information.
If the contract is subject to payment reporting rules, inaccurate or omitted TIN information can trigger payment reductions, so the data should be verified before submission.
Contracting staff should ensure the solicitation and award file capture the completed provision, since this information supports downstream reporting, vendor setup, and debt collection actions.
Official Regulatory Text
As prescribed in 4.905 , insert the following provision: Taxpayer Identification (Oct 1998) (a) Definitions . Common parent , as used in this provision, means that corporate entity that owns or controls an affiliated group of corporations that files its Federal income tax returns on a consolidated basis, and of which the offeror is a member. Taxpayer Identification Number (TIN), as used in this provision, means the number required by the Internal Revenue Service (IRS) to be used by the offeror in reporting income tax and other returns. The TIN may be either a Social Security Number or an Employer Identification Number. (b) All offerors must submit the information required in paragraphs (d) through (f) of this provision to comply with debt collection requirements of 31 U.S.C. 7701(c) and 3325 (d), reporting requirements of 26 U.S.C.6041 , 6041 A, and 6050 M, and implementing regulations issued by the IRS. If the resulting contract is subject to the payment reporting requirements described in Federal Acquisition Regulation (FAR) 4.904 , the failure or refusal by the offeror to furnish the information may result in a 31 percent reduction of payments otherwise due under the contract. (c) The TIN may be used by the Government to collect and report on any delinquent amounts arising out of the offeror’s relationship with the Government ( 31 U.S.C. 7701(c)(3) ). If the resulting contract is subject to the payment reporting requirements described in FAR 4.904 , the TIN provided hereunder may be matched with IRS records to verify the accuracy of the offeror’s TIN. (d) Taxpayer Identification Number (TIN) . □ TIN: __________________ . □ TIN has been applied for. □ TIN is not required because: □ Offeror is a nonresident alien, foreign corporation, or foreign partnership that does not have income effectively connected with the conduct of a trade or business in the United States and does not have an office or place of business or a fiscal paying agent in the United States; □ Offeror is an agency or instrumentality of a foreign government; □ Offeror is an agency or instrumentality of the Federal Government. (e) Type of organization . □ Sole proprietorship; □ Partnership; □ Corporate entity (not tax-exempt); □ Corporate entity (tax-exempt); □ Government entity (Federal, State, or local); □ Foreign government; □ International organization per 26 CFR 1.6049-4; □ Other __________________ . (f) Common parent . □ Offeror is not owned or controlled by a common parent as defined in paragraph (a) of this provision. □ Name and TIN of common parent: □ Name __________________ . □ TIN __________________ . (End of provision)