FAR 3.502-2—Subcontractor kickbacks.
Plain-English Summary
FAR 3.502-2 explains the federal Anti-Kickback Act rules that apply to subcontractor kickbacks and related conduct in prime contract and subcontract relationships. It covers the core prohibitions on offering, soliciting, accepting, or attempting kickbacks; the ban on passing kickback amounts through contract pricing; criminal and civil penalties; government offset and withholding remedies; claim treatment under the Contract Disputes statute; payment disposition of withheld funds; mandatory reporting of suspected violations; audit and inspection access for the Government Accountability Office and agency inspectors general; and required contractor internal controls and cooperation duties for covered prime contracts over $200,000 that are not for commercial products or commercial services. In practice, this section is designed to prevent hidden payments or favors from distorting subcontract awards, pricing, and performance decisions. It gives the Government tools to recover money, investigate suspected misconduct, and require contractors to maintain anti-kickback compliance systems. For contractors, it means kickback risk must be managed not only in direct dealings with the Government, but throughout the supply chain and internal procurement process. For contracting officers, it creates both a compliance requirement to include the clause in covered contracts and enforcement tools if a kickback is discovered.
Key Rules
Kickbacks are prohibited
No person may provide, attempt to provide, offer, solicit, accept, or attempt to accept a kickback in connection with a prime contract or a subcontract related to a prime contract. The rule is broad and covers both the giver and the recipient of the improper payment or benefit.
Kickback costs cannot be passed through
A subcontractor may not include the amount of a kickback in the price charged to a prime contractor or higher-tier subcontractor, and a prime contractor may not include that amount in the price charged to the United States. This prevents the Government or innocent downstream parties from bearing the cost of the improper payment.
Criminal and civil liability apply
Knowing and willful violations can trigger criminal penalties, while knowing violations can also lead to civil penalties. Civil liability can extend not only to the person who directly engaged in the kickback, but also to a person whose employee, subcontractor, or subcontractor employee provided, accepted, or charged the kickback.
Government may offset and withhold funds
The contracting officer may offset the kickback amount against money owed to the prime contractor under the related prime contract and may direct the prime contractor to withhold the same amount from sums owed to the subcontractor. These remedies let the Government recover or preserve funds while the matter is being resolved.
Offsets and withholdings are claims
An offset under the prime contract or a direction to withhold from a subcontractor is treated as a Government claim for purposes of the Contract Disputes statute. That means the action has formal claims consequences and is not just an informal accounting adjustment.
Withheld funds have prescribed disposition
The contracting officer may order withheld sums to be paid to the contracting agency, or if the amount has already been offset against the prime contractor, to be retained by the prime contractor. This ensures the Government can control where recovered funds go depending on how the remedy was applied.
Prime contractor must notify the CO
If the prime contractor withholds funds from a subcontractor under the contracting officer’s direction, it must notify the contracting officer when the withholding has been completed unless the withheld amount has been paid to the Government. This creates an accountability checkpoint for enforcement.
Suspected violations must be reported
A prime contractor or subcontractor that has reasonable grounds to believe a violation may have occurred must report it in writing to the agency inspector general, the agency head if there is no inspector general, or the Attorney General. The duty is triggered by reasonable grounds, not proof beyond doubt.
Government audit and inspection access
For determining whether a violation occurred, GAO and the agency inspector general, or an authorized agency representative if there is no inspector general, may inspect facilities and audit books and records, including electronic data and records, of prime contractors and subcontractors under the affected prime contract. Contractors must therefore maintain accessible, reliable records.
Anti-kickback controls are required in covered contracts
For prime contracts over $200,000 that are not for commercial products or commercial services, agencies must include a requirement that the prime contractor maintain reasonable procedures to prevent and detect kickback violations in its own operations and direct business relationships, and cooperate fully with Federal investigations. The rule gives examples of acceptable controls such as ethics rules, training, procurement controls, audits, surveys, reporting procedures, employee declarations, and personnel practices.
Full cooperation is mandatory
A prime contractor must cooperate fully with any Federal Government agency investigating a possible violation of 41 U.S.C. 8702, regardless of the broader anti-kickback control language. This is an affirmative investigation-support obligation, not merely a passive duty to avoid obstruction.
Responsibilities
Contracting Officer
May offset kickback amounts against money owed to the prime contractor, may direct withholding from subcontractor payments, and may order withheld sums paid to the agency or retained by the prime contractor as appropriate. The contracting officer also must ensure the required anti-kickback clause is included in covered prime contracts and may rely on the Government’s claim rights when enforcing offsets or withholdings.
Prime Contractor
Must not provide, solicit, accept, or pass through kickbacks; must maintain reasonable anti-kickback procedures in its own operations and direct business relationships for covered contracts; must cooperate fully with Federal investigations; must report suspected violations when it has reasonable grounds; and must notify the contracting officer when directed withholding from a subcontractor has been completed unless the withheld amount was paid to the Government.
Subcontractor
Must not offer, provide, solicit, accept, or attempt to pass through kickbacks; must report suspected violations when it has reasonable grounds to believe one occurred; and is subject to audit, inspection, and potential civil liability if it or its employees engage in prohibited conduct.
Higher-Tier Subcontractor
Must not include kickback amounts in pricing and must not participate in prohibited kickback conduct. Higher-tier subcontractors are covered because the statute reaches subcontract relationships above the first tier.
Government Accountability Office
May inspect facilities and audit books and records, including electronic records, to determine whether a kickback violation occurred with respect to a prime contract awarded by the agency.
Inspector General / Agency Head / Designated Agency Representative
Receives written reports of possible violations and may inspect facilities and audit books and records for investigative purposes. If the agency has no inspector general, the agency head receives reports; if there is no inspector general, the head may designate a representative for audit and inspection functions.
Attorney General
May receive written reports of possible violations when a prime contractor or subcontractor has reasonable grounds to believe a kickback violation may have occurred.
Agency
Must include the required anti-kickback compliance and cooperation requirement in each covered prime contract over $200,000 that is not for commercial products or commercial services.
Practical Implications
Kickback risk is not limited to cash payments; any improper thing of value or favor tied to contract award or performance can create exposure, so contractors need broad ethics and procurement controls.
The reporting duty is triggered by reasonable grounds, so companies should have internal escalation procedures that let employees report concerns quickly and document the decision to notify the Government.
Contractors should expect records requests and audits to include electronic data, emails, procurement files, and subcontract pricing support, so recordkeeping and retention practices matter.
Prime contractors can be pulled into subcontractor misconduct through withholding, offset, and civil liability, which makes subcontract oversight and flowdown compliance important.
Common pitfalls include weak gift and gratuity controls, poor subcontractor vetting, failure to train employees, and assuming that kickback issues are only a lower-tier subcontractor problem rather than a company-wide compliance issue.
Official Regulatory Text
The Anti-Kickback Act of 1986 (now codified at 41 U.S.C. chapter 87 , Kickbacks,) was passed to deter subcontractors from making payments and contractors from accepting payments for the purpose of improperly obtaining or rewarding favorable treatment in connection with a prime contract or a subcontract relating to a prime contract. The Kickbacks statute- (a) Prohibits any person from- (1) Providing, attempting to provide, or offering to provide any kickback; (2) Soliciting, accepting, or attempting to accept any kickback; or (3) Including, directly or indirectly, the amount of any kickback in the contract price charged by a subcontractor to a prime contractor or a higher tier subcontractor or in the contract price charged by a prime contractor to the United States. (b) Imposes criminal penalties on any person who knowingly and willfully engages in the prohibited conduct addressed in paragraph (a) of this section. (c) Provides for the recovery of civil penalties by the United States from any person who knowingly engages in such prohibited conduct and from any person whose employee, subcontractor, or subcontractor employee provides, accepts, or charges a kickback. (d) Provides that- (1) The contracting officer may offset the amount of a kickback against monies owed by the United States to the prime contractor under the prime contract to which such kickback relates; (2) The contracting officer may direct a prime contractor to withhold from any sums owed to a subcontractor under a subcontract of the prime contract the amount of any kickback which was or may be offset against the prime contractor under paragraph (d)(1) of this section; and (3) An offset under paragraph (d)(1) or a direction under paragraph (d)(2) of this section is a claim by the Government for the purposes of 41 U.S.C. chapter 71 , Contract Disputes. (e) Authorizes contracting officers to order that sums withheld under paragraph (d)(2) of this section be paid to the contracting agency, or if the sum has already been offset against the prime contractor, that it be retained by the prime contractor. (f) Requires the prime contractor to notify the contracting officer when the withholding under paragraph (d)(2) of this section has been accomplished unless the amount withheld has been paid to the Government. (g) Requires a prime contractor or subcontractor to report in writing to the inspector general of the contracting agency, the head of the contracting agency if the agency does not have an inspector general, or the Attorney General any possible violation of the Kickbacks statute when the prime contractor or subcontractor has reasonable grounds to believe such violation may have occurred. (h) Provides that, for the purpose of ascertaining whether there has been a violation of the Kickbacks statute with respect to any prime contract, the Government Accountability Office and the inspector general of the contracting agency, or a representative of such contracting agency designated by the head of the agency if the agency does not have an inspector general, shall have access to and may inspect the facilities and audit the books and records, including any electronic data or records, of any prime contractor or subcontractor under a prime contract awarded by such agency. (i) Requires each contracting agency to include in each prime contract, other than for commercial products or commercial services, exceeding $200,000, a requirement that the prime contractor shall– (1) Have in place and follow reasonable procedures designed to prevent and detect violations of the Kickbacks statute in its own operations and direct business relationships ( e.g., company ethics rules prohibiting kickbacks by employees, agents, or subcontractors; education programs for new employees and subcontractors, explaining policies about kickbacks, related company procedures and the consequences of detection; procurement procedures to minimize the opportunity for kickbacks; audit procedures designed to detect kickbacks; periodic surveys of subcontractors to elicit information about kickbacks; procedures to report kickbacks to law enforcement officials; annual declarations by employees of gifts or gratuities received from subcontractors; annual employee declarations that they have violated no company ethics rules; personnel practices that document unethical or illegal behavior and make such information available to prospective employers); and (2) Cooperate fully with any Federal agency investigating a possible violation of the Kickbacks statute. (j) Notwithstanding paragraph (i) of this section, a prime contractor shall cooperate fully with any Federal Government agency investigating a violation of 41 U.S.C. 8702 (see 41 U.S.C. 8703(b) ).