Anti-Kickback Statute (AKS): Remuneration for Referrals
The Anti-Kickback Statute (AKS, 42 U.S.C. 1320a-7b(b)) is a federal criminal law that prohibits knowingly offering, paying, soliciting, or receiving any remuneration to induce or reward referrals of items or services payable by a federal health-care program. It is intent-based, and a violation can also make resulting claims false under the False Claims Act.
- Enforced by
- DOJ / HHS OIG
- Applies to
- Anyone; federal health-care program referrals
- Penalty
- Criminal fines, prison, exclusion, FCA liability
What is the Anti-Kickback Statute?
The AKS is a federal criminal law that makes it a felony to exchange anything of value to induce or reward referrals of federal health-care business. It is intent-based — the government must show the conduct was knowing and willful — but courts have held that if even one purpose of a payment is to induce referrals, the statute can be violated, even if there were also legitimate purposes.
Where Stark is a narrow, strict-liability rule about physician self-referral, the AKS is broad and applies to everyone in the referral chain.
What counts as remuneration?
Almost anything of value: cash, above-market rent, free or discounted equipment, waived copays as a routine inducement, lavish "consulting" fees, or free services. Example: a lab that provides a referring practice with free specimen-collection staff, or waives patient balances specifically to keep the referrals flowing, is in AKS territory even if the lab work itself is legitimate.
How do safe harbors work?
The OIG has published safe harbors — arrangements that, if they meet every element, are protected from AKS prosecution. Common ones include bona fide employment, personal-services and management contracts at fair market value set in advance, and space/equipment leases.
Why should billers care?
Since 2010, a claim that results from an AKS violation is expressly a false claim under the False Claims Act. So a kickback does not just risk criminal charges — it makes every downstream claim potentially false, with treble damages and per-claim penalties, plus refund obligations under the 60-day rule. Billers should flag suspicious referral concentrations and fee arrangements they see in the data and route them to compliance; AKS themes recur on the OIG Work Plan.
Frequently asked questions
It prohibits knowingly and willfully offering, paying, soliciting, or receiving anything of value to induce or reward referrals of, or the purchase/order of, items or services reimbursable by a federal health-care program. Unlike Stark, it is not limited to physicians or to specific services — it reaches anyone, any remuneration, and any federal program business.
The AKS is criminal and requires intent (knowing and willful); Stark is civil and strict-liability. The AKS covers any remuneration to induce any federal health-care referral; Stark covers only physician self-referral for designated health services. A single arrangement, like a medical-director agreement, often must satisfy both an AKS safe harbor and a Stark exception.
Safe harbors are specific arrangements the OIG has defined as protected from AKS liability if every requirement is met — for example, bona fide employment, personal-services contracts at fair market value, and certain investment interests. Failing to fit a safe harbor does not automatically mean a violation, but it removes the guaranteed protection and invites scrutiny of intent.
Sources & further reading
Reviewed by the ImmediCare Solutions RCM team
Certified billers and coders handling claims across 50+ specialties nationwide. This entry is reviewed against current payer policy and CMS rules. Last review: Jul 5, 2026.
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