The third pillar most people miss is the "one purpose" test. Under the Anti-Kickback Statute, a payment or gift violates the law if any one of its purposes is to reward a referral or generate federal healthcare business—the government does not have to prove that inducing referrals was the only reason. That single rule, plus the statute's knowing-and-willful standard and its 2022–2023 safe harbor additions, is where most compliance programs break down.
This article walks through the parts of the AKS that the "paying for referrals" and "gifts for referrals" summary leaves out: the intent threshold, what counts as remuneration beyond cash, the federal healthcare program element, the statutory exceptions versus the regulatory safe harbors, and the individual liability that survives a corporate settlement.
Disclaimer: This is general educational information about a federal criminal statute, not a legal opinion. Healthcare fraud law is fact-specific and changes with regulation. Consult a qualified healthcare attorney licensed in your jurisdiction before structuring any arrangement. The AKS is codified at 42 U.S.C. § 1320a-7b(b), and the implementing safe harbors sit at 42 C.F.R. § 1001.952.
The "One Purpose" Test Means a Mixed Motive Still Violates the Statute
The AKS text says a violation occurs if someone knowingly and willfully offers or pays remuneration "in return for" referrals. Courts and the government read that phrase as requiring only that one purpose of the payment be the referral. If a hospital pays a physician group a fair-market-value consulting fee but one real reason for the deal was to keep surgical cases in-house, the statute is triggered.
The Health Care Fraud Prevention and Enforcement Action Team, known as HEAT, has made this explicit in enforcement materials. The Department of Justice has emphasized that the government need not prove the referral was the sole or even primary purpose of the payment. That means a compliant contract can still be a criminal problem if the surrounding facts show a referral motive.
Consider a worked example. A lab pays a physician $2,000 a month for "medical director services" documented at five hours. Fair market value for the region might be $150 an hour, or $750. The extra $1,250 is not automatically illegal—but if the lab's referral volume from that physician triples in the same period, the one-purpose test becomes the government's strongest theory.
The practical takeaway for compliance officers is that intent lives in the file. Emails, marketing plans, compensation committee notes, and referral-tracking spreadsheets are all evidence of purpose. If your documentation only shows the fair-market-value rationale and never addresses why this particular referral source was chosen, you have a gap.
Remuneration Is Broader Than Cash and Includes Anything of Value
"Gifts for a referral" sounds narrow. The statute's definition of remuneration is not. It covers the transfer of anything of value, directly or indirectly, in cash or in kind. The Office of Inspector General has pursued cases built on free rent, free staff, forgiven debt, and below-market loans.
Common non-cash forms that trigger AKS analysis include:
Free or discounted office space in a hospital building Practice management or billing services provided at no charge Free or subsidized electronic health record software and training Travel, meals, and conference sponsorship at levels beyond the educational purpose Stock options, ownership interests, and joint venture profit distributions Waived copays and deductibles for federal program beneficiaries Below-market equipment leases and above-market equipment purchase prices
The word "indirectly" matters. A payment routed through a management company, a charitable foundation, or a physician's family member still counts if the referring party receives the benefit. The OIG's 2002 and 2020 supplemental compliance guidance for hospitals and physicians both stress that indirect compensation arrangements are a recurring enforcement theme.
One edge case trips up well-meaning groups: a hospital provides a free "care coordinator" who happens to work inside a cardiology practice. The practice gets labor for nothing, and the hospital gets a stream of admissions. Even with no cash changing hands and no written referral requirement, the arrangement fits the remuneration element.
The Federal Healthcare Program Element Narrows the Statute to Program Business
The AKS applies to remuneration given to induce referrals of items or services covered by a federal healthcare program. That includes Medicare, Medicaid, TRICARE, and the Veterans Administration programs. Pure commercial insurance arrangements fall outside the AKS, though they may run into the federal False Claims Act if a claim later touches a federal program, or state anti-kickback statutes that often mirror the federal rule.
This boundary produces a real compliance trap. A practice builds a marketing arrangement with a private payer and assumes the AKS does not apply. Then a patient with dual eligibility—Medicare plus Medicaid—gets referred under the same arrangement. The portion of the remuneration tied to that patient's federal coverage is now in scope.
Determining what "federal healthcare program business" means in practice requires looking at patient mix. According to the Centers for Medicare & Medicaid Services, Medicare enrollment exceeded 68 million people in 2024, and Medicaid covered roughly 80 million at its pandemic-era peak before eligibility redeterminations reduced that figure. For most specialty practices, the federal share of revenue is large enough that AKS analysis is unavoidable.
The statute also reaches arrangements where the federal program is billed indirectly. A laboratory that pays a referring physician and then submits the resulting tests to Medicare is squarely in scope, even if the physician's practice is cash-only.
Knowing and Willful Conduct Sets a High but Not Insurmountable Bar
The AKS is a criminal statute requiring knowing and willful conduct. That sounds protective, and it is—but the bar is lower than many clinicians assume. The government does not need to prove the defendant read the statute or knew it applied. It needs to show the defendant knew the conduct was wrongful and acted with intent to do it anyway.
The 2010 Affordable Care Act amended the AKS to add that a person need not have actual knowledge of the statute or specific intent to violate it to be convicted. That amendment, at 42 U.S.C. § 1320a-7b(h), is one of the most consequential changes in the statute's history. It effectively converts what looks like a specific-intent crime into something closer to a general-intent offense for many defendants.
That shift is why compliance programs carry weight beyond good optics. A documented policy, training records, and a review process for physician arrangements can support a defense that any violation was unintentional and isolated. Their absence does the opposite.
Penalties are severe. A criminal AKS conviction can carry up to five years imprisonment per count plus a criminal fine. Civil exposure runs through the Civil Monetary Penalties Law and the False Claims Act, with per-claim penalties that the Federal Register adjusts annually for inflation. A single tainted claim can produce statutory penalties in the thousands of dollars, and qui tam relators can bring claims the government declines.
Statutory Exceptions Are Narrow but Automatic
The AKS itself contains a short list of statutory exceptions at 42 U.S.C. § 1320a-7b(b)(3). These are built into the statute and do not require you to fit a regulatory safe harbor. The most commonly used ones cover discounts, certain group purchasing organization arrangements, and payments to bona fide employees.
The bona fide employee exception is the workhorse. Payments to a W-2 employee for covered services are excluded from AKS liability, provided the employment relationship is real. That exception is why so many physician alignment strategies run through employment rather than independent contractor arrangements. It does not cover 1099 arrangements, which must instead fit a regulatory safe harbor.
A second statutory exception covers certain discount arrangements, but only if the discount is properly disclosed and reflected in the charge to the federal program. A third covers payments to a group purchasing organization under a written agreement. These exceptions are narrow. The government reads them strictly and does not extend them by analogy.
One area where the automatic exceptions fail is the independent contractor physician. A specialist who bills through a professional corporation and contracts with a hospital cannot use the employee exception. The arrangement must fit a regulatory safe harbor, or it must be structured so that no remuneration flows in connection with referrals at all.
Regulatory Safe Harbors Do More Work Than People Realize
The regulatory safe harbors at 42 C.F.R. § 1001.952 are the practical toolkit for structuring arrangements. There are roughly three dozen of them, and each specifies conditions that must be satisfied in full. Partial compliance generally does not protect the arrangement.
| Safe Harbor | Core purpose | Key conditions you must satisfy |
|---|---|---|
| Personal services and management contracts (with 2022 modifications) | Protects service arrangements with referral sources | Written agreement, signed, term of at least one year, aggregate compensation set in advance, fair market value, commercially reasonable, not tied to volume or value of referrals |
| Space rental | Protects below-market or above-market office and equipment leases | Written lease, one-year term, rent set in advance, fair market value, not tied to referrals, specific space identified |
| Equipment rental | Protects equipment leases with referral sources | Written lease, one-year term, set in advance, fair market value, specific equipment, no per-use formulas tied to referrals |
| Investment interests | Protects certain physician ownership in ASCs, hospitals, and labs | Specific eligibility limited to the "large entity" or "small entity" criteria; equity terms, disclosure and distribution rules apply |
| Electronic health records items and services (2023 final rule) | Protects donated EHR software and related services | Donor must be a specified entity type, interoperable EHR required, no switching costs, no donation tied to referrals |
The 2022 personal services modifications are the most important recent change in this area. The final rule published by CMS and OIG in November 2020 (effective January 2021, with further guidance and FAQs from OIG) revised the personal services safe harbor to allow for outcomes-based payments and clarified when a full-time services requirement does not apply. The change narrowed the "substantially full-time" element and replaced it with a requirement that the agreement specify the services and schedule.
The EHR safe harbor was made permanent and updated in a 2023 OIG final rule. If you are structuring a hospital-to-physician EHR donation today, confirm the current version of the safe harbor on the OIG website before signing.
Compliance Programs Must Address the Parts the Statute Does Not Spell Out
There is no AKS requirement that you maintain a compliance program, but the absence of one is evidence. The OIG's compliance program guidance for physicians and hospitals treats a functioning compliance program as a marker of good faith. The 2024 general compliance program guidance from OIG consolidates the earlier industry-specific guidance and sets out seven elements, including written policies, designated compliance officer, training, and audit procedures.
What does the practicality look like? A five-physician orthopedic practice that accepts Medicare should have a physician arrangement review process as its centerpiece. Every lease, every medical directorship, every equipment purchase from a referral source should pass through a documented fair-market-value determination. Survey valuations are not enough—the OIG has brought cases where a survey's stated value was used without applying its underlying assumptions.
Timing matters for compliance. Arrangements that existed before a policy change still count. An internal audit in 2024, for example, that finds an unsigned lease from 2019 has identified a live issue, not a historical one. The one-year term requirement in the space rental safe harbor is a continuous condition.
Documented training is the weakest link in most small-group programs. A lecture attendance list is not enough. Training tied to specific roles, repeated, with knowledge checks and a reporting mechanism, is what OIG expects to see.
Physician Compensation Structures Carry Elevated Risk Regardless of Value
Fair market value alone does not protect an arrangement. This is one of the most misunderstood parts of the statute. An arrangement can pay exactly FMV and still violate the AKS if any purpose of the payment is to induce referrals. The government's theory in cases such as the Florida hospital kickback prosecutions in the 2000s often rested on the referral-motive question even where compensation numbers matched survey ranges.
Volume-based formulas are a particular problem. A medical directorship that pays a flat stipend is safer than one that pays a percentage of collected revenue from the physician's referrals. Productivity bonuses can be structured to satisfy AKS, but the structure has to separate compensation for services from compensation for referrals. The 2022 safe harbor changes clarified that certain outcomes-based payments are permissible because they tie compensation to quality and cost measures rather than referral volume.
Stacking arrangements is a related failure mode. A physician who is employed, leases office space to the hospital, is paid a medical director fee, and receives a marketing stipend from the hospital has four distinct financial relationships. Each one requires separate analysis. The stacking problem is not the value of the individual payments but the cumulative effect on the referral relationship.
Finally, leases priced at exactly fair market value are only protected if the FMV is real. OIG has used appraisals from independent valuation firms as evidence that the arrangement was priced correctly, and in other cases as evidence that the practice ignored the appraiser's stated assumptions. Ask what assumptions the valuation rests on and whether they match the actual agreement.
Individual Liability Follows the People Who Signed the Arrangement
The AKS is a criminal statute that penalizes individuals, not just organizations. When a health system settles an AKS matter, the settlement often includes an obligation to report on compliance. But the individuals involved—the CEO, the CMO, the compliance officer, the physician—can be charged personally if the facts support knowing and willful conduct.
There are limits on that exposure. The government has generally pursued individuals at the top of a scheme or those with direct control over the arrangements in question. A clinician who signed a contract in good faith based on an approved internal review is in a different posture from a clinician who negotiated an arrangement their compliance officer had flagged.
The "responsible corporate officer" theory from federal food and drug law has not been broadly applied in AKS cases, but the Park doctrine remains available in principle. Any executive with responsibility for the financial relationships could in theory be exposed. That does not describe most physicians, but it does describe the small leadership group that approves physician deals.
What changes the analysis is the trail of decision-making. A board resolution approving a physician recruitment arrangement, minutes that record the compliance officer's concerns and the board's response, and documentation of independent legal review all shift the personal-liability calculation. Silence does not.
The ASC Safe Harbor Is the Most Misread Exception
Ambulatory surgery center ownership is the area where the safe harbor gets the most attention and the least careful reading. The ASC safe harbor permits physician investment in a single ASC but only for physicians who perform procedures there, with limits on who may be investors and on investment terms. Note that the ASC safe harbor is no longer closed to new investors as of the 2021 OIG rulemaking—confirm the current version before relying on it.
The safe harbor covers ASCs and, separately, certain hospital investments under the "hospital" investment interest safe harbor. The two rules have different eligibility criteria. A physician group considering an ASC venture should not assume that the hospital ownership safe harbor covers ASC investment or vice versa.
There's a familiar failure pattern: a physician-owned ASC brings in additional investors who are not physicians performing procedures at the ASC. The investment interest safe harbor's practitioner requirement in the small-entity pathway is generally limited to physicians—read the definition carefully. Bringing in a non-practitioner investor reopens the AKS analysis, because the ASC revenue share now flows to someone whose referrals made the ASC profitable.
FAQ
What does "remuneration" include beyond cash under the Anti-Kickback Statute?
Remuneration covers anything of value transferred directly or indirectly, including free rent, free staff, waived copays, forgiven debt, stock options, and hotel or travel arrangements beyond legitimate business purposes. The OIG has pursued arrangements where no cash changed hands but the referral source received a concrete benefit. The statute is drafted to catch the benefit, not the form of payment.
Is an arrangement that pays fair market value always safe from the AKS?
No. Fair market value is a condition of most regulatory safe harbors, but the one-purpose test looks at intent. A payment at exact FMV can still violate the statute if one purpose is to induce referrals. CMS and OIG use the FMV requirement as a floor, and stacked or volume-linked arrangements are the most common ways an FMV deal fails.
Can a physician be liable for an arrangement approved by their compliance officer?
Yes, in principle, but the analysis matters. Good-faith reliance on a documented internal review is a defense, not a complete safe harbor. If the compliance officer flagged specific risks and the arrangement proceeded anyway, the individual exposure rises sharply. Documentation of the review, not just its existence, is what counts.
Does the Anti-Kickback Statute apply to private insurance?
Generally no for purely commercial arrangements. The statute applies to federal healthcare program business, including Medicare, Medicaid, TRICARE, and VA programs. But most practices have enough federal patient mix that the analysis is unavoidable, and state anti-kickback statutes often track the federal rule independently.
What changed with the 2022 personal services safe harbor?
The final rule published in November 2020 (effective January 2021) allowed outcomes-based payments in the personal services safe harbor and replaced the "substantially full-time" requirement with a requirement that the agreement specify services and schedule. That change made the safe harbor easier to apply to part-time medical director arrangements. Confirm the current version on the OIG site before relying on it.
Are EHR donations still protected by a safe harbor?
Yes. The EHR items and services safe harbor was made permanent and updated in a 2023 OIG final rule. Conditions include requiring interoperable EHR technology, no switching cost obligations, and no tie to referrals. Donations structured under older safe harbor conditions may need updating.
How long does an AKS investigation take?
There is no standard timetable. Government investigations of physician arrangements often run one to three years from subpoena to resolution, depending on document volume and whether civil or criminal theories are pursued. Qui tam cases can take longer because the government's declination decision is part of the process.
What are the penalties for an AKS violation?
Criminal penalties include up to five years imprisonment per count and criminal fines. Civil exposure includes False Claims Act treble damages plus per-claim penalties adjusted annually for inflation, and Civil Monetary Penalties Law sanctions. Settlement amounts in hospital and lab cases have frequently reached seven and eight figures.
For any specific arrangement, the answer is fact-specific and depends on documents an article cannot see. Work with a qualified healthcare attorney and a valuation firm that understands the payment rules before signing. Local legal aid, a state bar referral service, or a healthcare compliance association can help you locate counsel; in an emergency involving suspected fraud, contact the OIG hotline or local law enforcement.