FAR 52.229-12—Tax on Certain Foreign Procurements.
Plain-English Summary
FAR 52.229-12 is the contract clause that gives notice of, and implements the contractor-side reporting and withholding mechanics for, the 2 percent excise tax under 26 U.S.C. 5000C on certain foreign procurements. It defines the key terms "foreign person" and "United States person," explains that the clause applies only to foreign persons, and ties the clause to the IRS regulations at 26 CFR 1.5000C-1 through 1.5000C-7. The clause requires foreign contractors to submit IRS Form W-14 with each invoice or voucher when they have a partial or no exemption, and to update that form as the applicable exemption changes from payment to payment. It also addresses the default withholding rule, how the Government calculates withholding when the contractor claims a partial exemption or identifies exempt and nonexempt amounts, and what happens if a contractor’s full exemption later disappears during performance. The clause further states that exemption claims are subject to IRS audit, that disputes over the tax are tax matters handled by the IRS rather than contract disputes, and that the tax may not be included in the contract price or reimbursed. In practice, this clause is important because it shifts the burden of identifying and documenting exemption status to the foreign contractor and gives the Government a clear withholding mechanism at payment time.
Key Rules
Applies Only to Foreign Persons
The clause applies only to foreign persons, meaning entities or individuals that are not United States persons as defined in the Internal Revenue Code. This is the threshold question for whether the withholding and reporting requirements apply at all.
Defines U.S. and Foreign Status
The clause incorporates the tax-law definition of "United States person," including U.S. citizens or residents, domestic partnerships, domestic corporations, certain estates, and certain trusts. Anyone outside that definition is a foreign person for purposes of this clause.
Form W-14 Required for Partial or No Exemption
If the contractor is a foreign person and has only a partial exemption or no exemption, it must submit IRS Form W-14 with each voucher or invoice during the period that status applies. The form is used to document the applicable exemption, if any, for that specific payment request.
Withholding Happens Per Payment
The excise tax withholding is applied at the payment level, not the contract level. That means exemption status can change from one invoice to the next, and the contractor must revise the W-14 submission to match the exemption that applies to each payment request.
Default 2 Percent Withholding
If a completed IRS Form W-14 does not accompany a payment request, the Government will withhold 2 percent of the payment by default. This default applies to the section 5000C withholding for that payment request.
Change in Circumstances Must Be Reported
If a foreign contractor previously certified full exemption but later becomes subject to withholding because circumstances change, it must notify the Contracting Officer within 30 days and then comply with the W-14 submission requirements for partial or no exemption.
Partial Exemption Calculation Methods
If the contractor enters a contract ratio on Line 12 of Form W-14, the Government withholds 2 percent multiplied by that ratio. If the contractor uses box 9 and identifies exempt and nonexempt amounts on Line 15, the Government withholds 2 percent only from the nonexempt amount.
Exemptions Are IRS-Defined and Auditable
The available exemptions are those described in the IRS regulations at 26 CFR 1.5000C-1(d)(5) through (7). Any exemption claimed on Form W-14 is subject to IRS audit, and disputes about the tax are resolved by the IRS, not through the contract disputes process.
Tax Cannot Be Built Into Price
Taxes imposed under 26 U.S.C. 5000C may not be included in the contract price and may not be reimbursed. Contractors must treat the withholding as a tax consequence, not as a recoverable contract cost.
IRS Guidance Controls Tax Questions
The clause points contractors to IRS private letter rulings, revenue rulings, and IRS tax-law guidance resources for questions about tax treatment. This reinforces that interpretation of the tax rules is a tax administration matter, not a procurement interpretation issue.
Responsibilities
Contractor
Determine whether it is a foreign person and whether any exemption from 26 U.S.C. 5000C withholding applies. If partially exempt or not exempt, submit a completed IRS Form W-14 with each invoice or voucher, update the form for each payment request as needed, and notify the Contracting Officer within 30 days if a previously claimed full exemption no longer applies.
Contracting Officer
Monitor compliance with the clause, receive notice when a contractor’s exemption status changes, and ensure the contract administration process reflects the withholding requirements. The Contracting Officer does not decide the tax dispute, but must administer the contract in a way that supports proper withholding.
Government Payment Office / Disbursing Office
Apply the 2 percent withholding rule at the payment level based on the contractor’s Form W-14 submission or, if no completed form is provided, withhold the default 2 percent. When partial exemptions are claimed, calculate withholding using the ratio or exempt/nonexempt amounts provided on the form.
IRS
Administer the tax rules, audit exemption claims, and adjudicate disputes over the imposition and collection of the 26 U.S.C. 5000C tax. The IRS also provides guidance on the proper tax treatment of transactions and the use of Form W-14.
Agency / Government
Ensure the clause is included when prescribed, withhold the tax as required, and avoid treating the tax as a reimbursable contract cost. The agency must also recognize that tax disputes are handled outside the contract claims process.
Practical Implications
Foreign contractors need a payment-by-payment compliance process, not just a one-time certification at award. A contractor that is exempt on one invoice may not be exempt on the next, so invoice review and Form W-14 updates matter.
The biggest operational risk is missing or incomplete Form W-14 documentation, which triggers the default 2 percent withholding. Contractors should make sure the form is current, complete, and aligned with the specific invoice being submitted.
Contracting officers and payment offices should not try to resolve the underlying tax question as a contract interpretation issue. If the issue is whether an exemption applies or whether the tax was properly imposed, that is an IRS matter.
Contractors cannot simply add the tax to their price or later seek reimbursement through the contract. If the tax applies, it is a contractor tax burden, not a recoverable contract cost.
A change in circumstances can create compliance exposure mid-performance. Contractors that initially certified full exemption should have controls to detect when that status changes and to notify the Contracting Officer within the required 30 days.
Official Regulatory Text
As prescribed in 29.402-3 (b) , insert the following clause: Tax on Certain Foreign Procurements—Notice and Representation (Feb 2021) (a) Definitions. As used in this clause— Foreign person means any person other than a United States person. United States person , as defined in 26 U.S.C. 7701 (a)(30), means– (1) A citizen or resident of the United States; (2) A domestic partnership; (3) A domestic corporation; (4) Any estate (other than a foreign estate, within the meaning of 26 U.S.C. 7701 (a)(31)); and (5) Any trust if- (i) A court within the United States is able to exercise primary supervision over the administration of the trust; and (ii) One or more United States persons have the authority to control all substantial decisions of the trust. (b) This clause applies only to foreign persons. It implements 26 U.S.C. 5000C and its implementing regulations at 26 CFR 1.5000C-1 through 1.5000C-7. (c) (1) If the Contractor is a foreign person and has only a partial or no exemption to the withholding, the Contractor shall include the Department of the Treasury Internal Revenue Service Form W-14, Certificate of Foreign Contracting Party Receiving Federal Procurement Payments, with each voucher or invoice submitted under this contract throughout the period in which this status is applicable. The excise tax withholding is applied at the payment level, not at the contract level. The Contractor should revise each IRS Form W-14 submission to reflect the exemption (if any) that applies to that particular invoice, such as a different exemption applying. In the absence of a completed IRS Form W-14 accompanying a payment request, the default withholding percentage is 2 percent for the section 5000C withholding for that payment request. Information about IRS Form W-14 and its separate instructions is available via the internet at www.irs.gov/w14 . (2) If the Contractor is a foreign person and has indicated in its offer in the provision 52.229-11 , Tax on Certain Foreign Procurements—Notice and Representation, that it is fully exempt from the withholding, and certified the full exemption on the IRS Form W-14, and if that full exemption no longer applies due to a change in circumstances during the performance of the contract that causes the Contractor to become subject to the withholding for the 2 percent excise tax then the Contractor shall– (i) Notify the Contracting Officer within 30 days of a change in circumstances that causes the Contractor to be subject to the excise tax withholding under 26 U.S.C. 5000C ; and (ii) Comply with paragraph (c)(1) of this clause. (d) The Government will withhold a full 2 percent of each payment unless the Contractor claims an exemption. If the Contractor enters a ratio in Line 12 of the IRS Form W-14, the result of Line 11 divided by Line 10, the Government will withhold from each payment an amount equal to 2 percent multiplied by the contract ratio. If the Contractor marks box 9 of the IRS Form W-14 (rather than completes Lines 10 through 12), the Contractor must identify and enter the specific exempt and nonexempt amounts in Line 15 of the IRS Form W-14; the Government will then withhold 2 percent only from the nonexempt amount. See the IRS Form W-14 and its instructions. (e) Exemptions from the withholding under this clause are described at 26 CFR 1.5000C-1(d)(5) through (7). Any exemption claimed and self-certified on the IRS Form W-14 is subject to audit by the IRS. Any disputes regarding the imposition and collection of the 26 U.S.C. 5000C tax are adjudicated by the IRS as the 26 U.S.C. 5000C tax is a tax matter, not a contract issue. (f) Taxes imposed under 26 U.S.C. 5000C may not be— (1) Included in the contract price; nor (2) Reimbursed. (g) A taxpayer may, for a fee, seek advice from the Internal Revenue Service (IRS) as to the proper tax treatment of a transaction. This is called a private letter ruling. Also, the IRS may publish a revenue ruling, which is an official interpretation by the IRS of the Internal Revenue Code, related statutes, tax treaties, and regulations. A revenue ruling is the conclusion of the IRS on how the law is applied to a specific set of facts. For questions relating to the interpretation of the IRS regulations go to https://www.irs.gov/help/tax-law-questions . (End of clause)