False Claims Act & Qui Tam Defense

By Elizabeth Franklin-Best, Esq., and Christopher Zoukis, JD, MBA

The False Claims Act is the federal government’s most powerful civil weapon against fraud on the public treasury, and it rarely travels alone. A single course of conduct — a disputed Medicare billing practice, a contested cost certification on a federal contract — can generate a sealed whistleblower lawsuit, a Justice Department civil investigation, and a parallel criminal inquiry, all at once. Treble damages, per-claim penalties that compound into the millions, and the threat of a five-year felony make these among the highest-stakes matters in white-collar practice.

At Elizabeth Franklin-Best, P.C., we defend individuals and companies across the full arc of a False Claims Act matter — from the first civil investigative demand through qui tam intervention, parallel criminal exposure, and trial. Elizabeth Franklin-Best, our principal attorney, was named a 2026 “Best Lawyer” for Appellate Practice by Best Lawyers in America and holds a 2026 Chambers USA ranking in Litigation: White-Collar Crime & Government Investigations — recognition earned in the fraud and government-investigation work that defines this field. The civil False Claims Act is codified at 31 U.S.C. §§ 3729–3733; its criminal counterpart sits at 18 U.S.C. § 287.

This guide explains how the False Claims Act works — the civil framework, the demanding scienter and materiality standards the Supreme Court has imposed, the qui tam whistleblower mechanism and its bars, the criminal false-claims statutes that can run alongside, the unsettled Appointments Clause challenge to qui tam itself, and the parallel-proceedings problem that makes early, coordinated defense essential. If you are facing such a matter, a false claims act defense lawyer should be involved before you respond to the government on either track.

Quick Answer

Question	Answer
What is the False Claims Act?	A federal statute (31 U.S.C. §§ 3729–3733) imposing treble damages and per-claim civil penalties on anyone who knowingly submits, or causes the submission of, a false or fraudulent claim for federal money.
Is it civil or criminal?	Both tracks exist. The civil FCA is the main enforcement tool; a separate criminal statute, 18 U.S.C. § 287, punishes knowingly false claims with up to five years in prison per count.
What is a qui tam suit?	A whistleblower (relator) sues in the government’s name under seal. The government investigates, then decides whether to intervene. The relator can collect 15–30% of any recovery.
What must the government prove?	A false claim, made knowingly, that was material to the government’s payment decision. “Knowingly” is judged by the defendant’s own subjective belief, not by what a reasonable person would have thought.
How large is the exposure?	Treble (triple) the government’s loss, plus a penalty of roughly $14,000 to $29,000 for every individual false claim — which in high-volume billing cases can dwarf the actual damages.
How can our firm help?	In a paid, one-hour initial consultation we assess civil and criminal exposure together, map the qui tam and investigative posture, and build a coordinated defense before you respond on either track.

Key Takeaways

• The civil False Claims Act imposes mandatory treble damages plus a per-claim penalty (currently about $14,308 to $28,619 per claim) on anyone who knowingly submits a false claim for federal funds.
• The statute lists seven categories of liability in 31 U.S.C. § 3729(a)(1), including presenting a false claim, using a false record material to a claim, conspiracy, and “reverse” false claims that avoid an obligation to pay the government.
• In United States ex rel. Schutte v. SuperValu Inc., the Supreme Court held that FCA scienter is subjective — what the defendant actually believed, not what an objectively reasonable person might have believed.
• In Universal Health Services v. Escobar, the Court recognized implied-certification liability but made materiality a demanding standard; the government’s continued payment despite knowledge of a violation is strong evidence of non-materiality.
• The qui tam mechanism lets a private relator sue under a 60-day seal; the government may intervene, decline, or move to dismiss after intervening under United States ex rel. Polansky v. Executive Health Resources.
• The first-to-file bar and the public-disclosure/original-source bar are powerful gatekeeping defenses that can defeat a relator’s suit at the threshold.
• A separate criminal statute, 18 U.S.C. § 287, punishes knowingly false claims with up to five years per count, and § 286 reaches conspiracies to defraud the government through false claims.
• FCA matters routinely run in parallel with a criminal investigation, raising acute Fifth Amendment, discovery, and civil-stay issues.
• The constitutionality of qui tam itself is unsettled: a federal district court held the device violates the Appointments Clause in Zafirov, and that ruling is on appeal — an issue every relator and defendant should watch.

What Is the False Claims Act?

The False Claims Act is a federal statute that makes it unlawful to knowingly present a false or fraudulent claim for payment to the United States, or to knowingly avoid an obligation to pay money the government is owed. Enacted in 1863 to combat Civil War profiteering and strengthened by amendments in 1986, 2009, and 2010, it is today the centerpiece of federal civil fraud enforcement — the Justice Department reported that FCA settlements and judgments exceeded $6.8 billion in fiscal year 2025, the highest single-year total in the Act’s history.

The statute works through three connected features: broad liability, severe remedies, and private enforcement. It defines a “claim” expansively to reach almost any request for federal money or property, whether submitted directly to a federal agency or to a grantee, contractor, or other intermediary the government will reimburse. The Supreme Court confirmed that reach in Wisconsin Bell, Inc. v. United States ex rel. Heath, 604 U.S. 140 (2025), holding that reimbursement requests under the federally funded E-Rate program qualify as “claims” because the government had supplied at least a portion of the money at issue. It backs that liability with punishing treble damages and per-claim penalties, and it deputizes private whistleblowers to sue on the government’s behalf and share in the recovery. Most FCA matters surface first through a civil investigative demand or a grand jury subpoena, which is why the government’s investigative tools and the FCA are best understood together.

The Seven Categories of Civil Liability

Section 3729(a)(1) sets out seven categories of prohibited conduct. Most cases are built on the first two, but defense counsel has to read every charged subsection carefully, because each has distinct elements.

• (A) Presenting a false claim. Knowingly presenting, or causing to be presented, a false or fraudulent claim for payment or approval — the core theory in most FCA cases.
• (B) False record or statement. Knowingly making or using a false record or statement material to a false or fraudulent claim.
• (C) Conspiracy. Conspiring to commit any other FCA violation.
• (D)–(F) Property and receipt offenses. Delivering less government property than a receipt reflects, making a false receipt for government property, or knowingly buying public property from an officer who may not lawfully sell it.
• (G) Reverse false claims. Knowingly making a false record material to an obligation to pay the government, or knowingly concealing or improperly avoiding such an obligation.

The reverse-false-claims theory under subsection (G) deserves attention, because it does not require an affirmative request for payment at all — it reaches a company that knowingly avoids paying money it owes, such as evaded customs duties or an unreturned, identified Medicare overpayment. The Justice Department has made customs and tariff evasion an explicit FCA priority. Across all seven categories, two elements do the heavy lifting in litigation: the defendant’s knowledge (scienter) and the claim’s materiality — both reshaped by the Supreme Court in the last decade.

Scienter: The Subjective Knowledge Standard After Schutte

The FCA defines “knowingly” to include three mental states: actual knowledge that the information is false, deliberate ignorance of its truth or falsity, or reckless disregard of its truth or falsity. The statute expressly provides that no proof of specific intent to defraud is required — a point that distinguishes the civil FCA from the criminal false-claims statutes, and one that means a defendant who ignores an obvious risk that a claim is false can be liable without any showing that he set out to cheat the government.

For years, several circuits recognized an objective “safe harbor”: if a defendant’s reading of an ambiguous regulation was objectively reasonable, it could not be said to have acted knowingly, whatever it actually believed. The Supreme Court closed that door in United States ex rel. Schutte v. SuperValu Inc., 598 U.S. 739 (2023), holding unanimously that the FCA’s scienter element “refer[s] to a defendant’s knowledge and subjective beliefs — not to what an objectively reasonable person may have known or believed.” What matters is what the defendant actually thought when it submitted the claim, not a post hoc interpretation that might make the claim defensible. Even a facially ambiguous regulatory term creates no safe harbor if the defendant learned, or was aware of a substantial likelihood of, its correct meaning and submitted claims it believed were false anyway.

The practical consequence is that the FCA’s central battleground is now the defendant’s contemporaneous state of mind. Internal emails, compliance alerts, audit findings, and the advice of counsel a company received — and how it responded — have become the evidence that decides scienter disputes. For defendants with genuine compliance programs and documented good-faith interpretations, Schutte leaves room to contest knowledge; for those whose own records show awareness of the risk, it can be unforgiving.

Applied Insight: After Schutte, the first thing we examine in any FCA matter is the client’s own paper trail — the compliance memos, the billing-guidance emails, the audit responses. Those documents now carry the case, because they show what the client actually believed. A litigation hold and a careful, privileged review at the very start of an investigation are not housekeeping; they shape the defense that follows.

Materiality: Escobar’s Demanding Test

A false statement violates the FCA only if it is material — if it has a natural tendency to influence, or is capable of influencing, the government’s payment decision. The leading authority is Universal Health Services, Inc. v. United States ex rel. Escobar, 579 U.S. 176 (2016), which did two things at once. First, it endorsed the implied-certification theory: a claim can be false even without an express misrepresentation when the defendant makes specific representations about the goods or services provided but fails to disclose noncompliance with a material requirement, rendering those representations misleading half-truths. Liability does not turn on whether the violated requirement was formally labeled a condition of payment.

Second, and just as important for the defense, Escobar held that the FCA’s materiality requirement is “demanding.” The Act is not, the Court emphasized, an all-purpose antifraud statute or a vehicle for punishing garden-variety regulatory or contract violations. A misrepresentation is not material merely because the government labeled compliance a condition of payment, and noncompliance that is minor or insubstantial cannot be material. The most powerful materiality evidence is often the government’s own payment behavior: as the Court put it, if the government pays a claim in full despite actual knowledge that requirements were violated, that is “very strong evidence” those requirements are not material. In practice, defense counsel mines how the relevant agency treated the alleged violation — whether it kept paying, sought recoupment, or issued guidance — because the answer can be dispositive.

The Qui Tam Mechanism: Relators, the Seal, and Intervention

The False Claims Act’s defining feature is private enforcement. Under 31 U.S.C. § 3730(b), any person — the relator, usually a current or former employee — may bring a civil action in the name of the United States. The relator files the complaint in camera and under seal, and serves the government with a written disclosure of substantially all the material evidence. The complaint stays sealed for at least 60 days while the government investigates and decides whether to intervene, but the government routinely obtains extensions, so seals commonly last months or years. The defendant frequently learns of the suit only when the seal lifts — or when a civil investigative demand arrives first.

If the government intervenes, it assumes primary responsibility and the relator collects between 15% and 25% of the proceeds; if it declines, the relator may pursue the case alone and collect between 25% and 30%. Those incentives are substantial, and they explain why whistleblowers filed a record 1,297 qui tam suits in fiscal year 2025. The government’s control does not end if it declines at the outset: in United States ex rel. Polansky v. Executive Health Resources, Inc., 599 U.S. 419 (2023), the Supreme Court held that the government may move to dismiss a qui tam action over the relator’s objection so long as it has intervened at some point, with courts applying the ordinary Rule 41(a) standard and giving the government substantial deference. For a defendant facing a marginal relator-driven suit the government does not support, persuading the Justice Department to seek dismissal can be the most efficient path to resolution.

Applied Insight: The seal period is a hidden opportunity. A company that learns it is under investigation — often through a civil investigative demand — can sometimes shape the government’s intervention decision before the complaint ever becomes public, by presenting exculpatory facts, demonstrating a robust compliance response, and, where appropriate, making a controlled voluntary disclosure that preserves reduced-damages treatment. Once the seal lifts and the case is public, that leverage is harder to recover.

Jurisdictional Bars: First-to-File and Public Disclosure

The FCA contains built-in limits designed to weed out parasitic suits, and they are among the defense’s most effective threshold tools. The first-to-file bar, § 3730(b)(5), provides that once one relator files a qui tam action, no one other than the government may bring a related action based on the same underlying facts while the first suit is pending. In Kellogg Brown & Root Services, Inc. v. United States ex rel. Carter, 575 U.S. 650 (2015), the Supreme Court held that a suit ceases to be “pending” once it is dismissed — so the bar blocks a later suit only while the earlier one is alive, and a barred relator may sometimes refile after the first action ends.

The public-disclosure bar, § 3730(e)(4), requires dismissal where substantially the same allegations were already publicly disclosed — in a federal hearing or investigation, a government report or audit, or the news media — unless the relator qualifies as an “original source.” An original source either voluntarily disclosed the information to the government before the public disclosure, or has knowledge independent of and materially adding to the public information that it provided before filing. The 2010 amendments converted this bar from a jurisdictional rule into a non-jurisdictional ground for dismissal, but it remains a frequent and powerful defense. A relator who merely applies industry knowledge to already-public data, without genuine insider information that materially adds to the record, will not qualify.

Timing is also limited. Under § 3731(b), a civil FCA action must be brought within six years of the violation, or within three years after the responsible federal official knew or should have known the material facts — but never more than ten years after the violation. In Cochise Consultancy, Inc. v. United States ex rel. Hunt, 587 U.S. 262 (2019), the Supreme Court held that the three-year discovery rule applies even in declined qui tam cases, and that the clock is triggered by the knowledge of the responsible government official, not the relator — a holding that can extend the effective limitations period well beyond six years.

The Appointments Clause Challenge to Qui Tam

The most consequential open question in False Claims Act law is whether the qui tam device itself is constitutional. The challenge builds on a concurrence and a dissent in Polansky, where three Justices signaled that there are “substantial arguments that the qui tam device is inconsistent with Article II and that private relators may not represent the interests of the United States in litigation.” The theory is that a relator who litigates on the government’s behalf, exercising significant executive authority, is effectively an “officer of the United States” who must be appointed under the Appointments Clause — which a self-selected whistleblower plainly is not.

A federal district court accepted that argument in United States ex rel. Zafirov v. Florida Medical Associates, LLC, 751 F. Supp. 3d 1293 (M.D. Fla. 2024), dismissing a qui tam complaint on the ground that the FCA’s relator provision violates the Appointments Clause and Article II. The decision was the first of its kind and sent a jolt through the qui tam bar, but its status matters: Zafirov is a single district-court ruling, it is not binding outside that court, and other courts have rejected the same argument and upheld the qui tam mechanism.

The issue is now squarely before the courts of appeals. The Zafirov ruling is on appeal to the U.S. Court of Appeals for the Eleventh Circuit (No. 24-13581), which heard oral argument on December 12, 2025; as of mid-2026 the appeal remains pending and undecided, with extensive amicus participation on both sides. Whichever way the Eleventh Circuit rules, the question appears destined for the Supreme Court. This is a fast-moving area, and the constitutionality of qui tam is a live issue that any relator contemplating suit, and any defendant facing one, should evaluate with current counsel rather than a snapshot of the doctrine.

Criminal False Claims: 18 U.S.C. §§ 287 and 286

The civil FCA is not the only false-claims statute. The criminal false-claims statute, 18 U.S.C. § 287, makes it a felony to make or present to any federal department or agency a claim the defendant knows to be false, fictitious, or fraudulent. A conviction carries up to five years’ imprisonment per count and a fine, and sentencing is driven by the loss-based economic-crime guideline, U.S.S.G. § 2B1.1. Because each false claim can be charged as a separate count, the criminal exposure in a multi-claim billing case can be severe.

The mental state is the key difference between the tracks. Section 287 requires actual knowledge that the claim is false — the deliberate-ignorance and reckless-disregard standards that suffice under the civil FCA do not appear in the criminal statute’s text, and the government must prove knowing falsity beyond a reasonable doubt rather than by a preponderance. That higher bar is often the heart of a criminal false-claims defense, because conduct that might support civil liability under a reckless-disregard theory may fall short of the knowing falsity a conviction demands. A companion statute, 18 U.S.C. § 286, punishes conspiracy to defraud the government by obtaining the payment of false claims and carries up to ten years’ imprisonment, reaching an agreement to submit false claims even where no individual claim is pinned to a particular defendant. These cases frequently travel alongside related charges — health care fraud under 18 U.S.C. § 1347, mail and wire fraud, or Anti-Kickback Statute violations — so a charging analysis must account for the entire statutory toolkit, not the false-claims counts in isolation.

Parallel Civil and Criminal Proceedings

The single most dangerous structural feature of False Claims Act practice is that the civil and criminal tracks run in parallel. The Justice Manual directs that criminal, civil, regulatory, and administrative fraud proceedings be coordinated to the fullest extent possible, and the same conduct that generates a qui tam complaint is routinely referred to the Criminal Division and the U.S. Attorney’s Office for a parallel look. A defendant who treats a civil FCA inquiry as a low-stakes matter — and answers expansively without weighing criminal exposure — can hand prosecutors the building blocks of an indictment.

That overlap raises acute Fifth Amendment problems, because statements made in civil depositions or interrogatory responses, and documents produced in civil discovery, can be used in a criminal prosecution. The government is generally free to pursue both tracks, and an acquittal on criminal false-claims charges does not bar a later civil FCA action, because the two carry different elements and different burdens of proof. The reverse is more dangerous to defendants: under § 3731(e), a criminal conviction for fraud or false statements estops the defendant from denying the essential elements in a later civil FCA case arising from the same transaction.

The double-jeopardy ceiling on stacking civil and criminal penalties is set by Hudson v. United States, 522 U.S. 93 (1997), which held that the Double Jeopardy Clause bars only multiple criminal punishments — so a civil sanction does not bar a later criminal prosecution unless it is so punitive, judged by the statute on its face, that the “clearest proof” transforms it into a criminal penalty. Courts have generally treated FCA treble damages and penalties as civil, so the government usually can pursue both. The defense response is procedural: counsel routinely seeks a stay of civil discovery pending the criminal matter and sequences the two tracks so nothing said on the civil side becomes a gift to the prosecution — a challenge that connects directly to the broader federal criminal process.

Damages, Penalties, and Collateral Consequences

Civil FCA liability is severe and asymmetric. The statute imposes mandatory treble damages — three times the government’s actual loss — plus a per-claim civil penalty that currently runs from roughly $14,308 to $28,619 for each individual false claim under the inflation-adjusted regulation. In a high-volume billing case the per-claim penalties alone can dwarf the actual damages: a provider who submitted even 500 false claims faces up to roughly $14.3 million in penalties before any damages multiplier. The statute does provide relief for early, complete cooperation — if the violator furnishes all known information to investigators within 30 days, fully cooperates, and acts before any action begins and without knowledge of an existing investigation, the court may impose double rather than treble damages.

The monetary penalties are frequently not the worst of it. An FCA judgment or settlement can trigger exclusion from Medicare and Medicaid for a health care defendant, or suspension and debarment from federal contracting for a contractor — consequences that can end a business even when the dollar figure is survivable. Health care settlements routinely come with a Corporate Integrity Agreement imposing years of compliance monitoring, and defendants often face parallel state false-claims liability plus an anti-retaliation claim under § 3730(h) from the whistleblower, who is entitled to reinstatement, double back pay, and special damages. A realistic early case assessment maps all of these, not just the headline damages number.

Defending a False Claims Act Case

There is no single defense to a False Claims Act case; there is a sequence of them, applied in the order that resolves the matter most efficiently, and the strongest often dispose of a case before its merits are reached.

• Attack the threshold bars. A first-to-file or public-disclosure defect, or a limitations problem, can defeat a relator’s suit at the pleading stage without litigating the underlying conduct.
• Contest scienter. After Schutte, the defense develops the client’s contemporaneous good-faith belief — compliance programs, reliance on regulatory guidance, documented advice of counsel — to show the claims were not submitted knowingly.
• Contest materiality. Under Escobar, evidence that the government kept paying despite knowledge of the alleged violation can be decisive.
• Challenge falsity, or invoke government knowledge. Many theories collapse on inspection, and where the government and the defendant worked together toward a common solution outside the strict contract terms, the government’s knowledge can negate the inference of a knowing false claim.
• Engage during the seal. Proactive engagement — including a controlled voluntary disclosure where appropriate — can influence the intervention decision and preserve reduced-damages treatment.

When criminal exposure is present, every one of these civil moves must be coordinated with the criminal defense, because a concession on one track can echo on the other. Running the two as a single integrated strategy is what separates competent FCA defense from a civil-only approach that overlooks the most serious risk in the room.

How Our Firm Defends False Claims Act Matters

At Elizabeth Franklin-Best, P.C., we approach a False Claims Act matter as the dual-track problem it usually is: a civil fraud case with the gravitational pull of a criminal investigation behind it. We assess civil and criminal exposure together from the first day, identify the threshold bars that might end a qui tam suit early, build the contemporaneous-knowledge and materiality records that Schutte and Escobar make decisive, and manage the Fifth Amendment and discovery-sequencing problems that arise when both tracks move at once.

That work is grounded in a federal practice built for high-stakes government investigations. Our principal attorney, Elizabeth Franklin-Best, has handled more than 330 federal proceedings — over 100 of them appeals — across the trial courts, every federal circuit, and the certiorari stage of the U.S. Supreme Court, and she is the author of Reversing Your Criminal Conviction. Admitted to the U.S. Supreme Court and all twelve federal circuits and appearing pro hac vice nationwide, she brings the analytical, record-focused approach that False Claims Act matters reward, reflected in her Best Lawyers in America recognition for Appellate Practice and her Chambers USA ranking for white-collar and government-investigations work. Our Managing Director, Christopher Zoukis, JD, MBA — a non-attorney who concentrates on federal sentencing and corrections — helps clients and families understand the stakes on the criminal side so the strategy accounts for every consequence.

We represent both companies and individuals. For related reading, see our guides to government contract fraud, the Anti-Kickback Statute, and healthcare fraud defense, along with our overview of the federal criminal process.

Talk With a False Claims Act Defense Lawyer

A False Claims Act matter is rarely just one case. It is often a sealed whistleblower suit, a civil investigation, and a potential criminal exposure, all moving at the same time — and what you do in the first weeks, on both tracks, can determine how the whole thing ends. You should not navigate that alone, and you should not respond to the government on either side before your exposure is understood.

We begin every False Claims Act engagement with a paid, one-hour initial consultation devoted to your situation — the claims at issue, the civil and criminal exposure, the qui tam and investigative posture, and the moves available to you — so you leave with a concrete plan rather than generalities. If a civil investigative demand, a qui tam complaint, or a target letter tied to false-claims conduct has reached you, schedule that consultation now, before deadlines on either track narrow your options.