31 USC 3729 — The False Claims Act: Penalties & How It Works

31 USC 3729, the federal False Claims Act (FCA), is the government’s primary civil weapon against health care fraud. It imposes liability on anyone who knowingly submits — or causes the submission of — a false or fraudulent claim for payment to a federal program like Medicare or Medicaid. A defendant found liable owes three times the government’s damages plus a separate penalty for every false claim, and private whistleblowers can sue on the government’s behalf through “qui tam” actions. Although it is civil, an FCA case is serious — and it very often runs alongside a parallel criminal investigation.

This page explains how the False Claims Act works, what conduct triggers liability, the unusual “knowing” standard, how penalties are calculated, the role of whistleblowers, and how these cases are defended. It is a plain-English legal reference for anyone facing an FCA investigation or qui tam lawsuit in California. For how we defend these matters, see our federal health care fraud defense page.

Summary of the Statute

The False Claims Act dates to 1863, when Congress targeted contractors defrauding the Union Army during the Civil War — which is why it is sometimes called the “Lincoln Law.” Major amendments in 1986 transformed it into the powerful enforcement tool it is today, raising damages from double to treble and strengthening the whistleblower provisions that now drive most cases. It is codified at 31 USC 3729 through 3733, with the core liability rules in 31 USC 3729.

Although it is a civil statute, an FCA case should never be treated lightly. In health care, the government and whistleblowers use it to recover billions of dollars every year, and the federal government has made health care its single largest source of FCA recoveries. Just as important, a civil FCA matter frequently runs in parallel with a criminal investigation under statutes such as 18 USC 1347. The two tracks often share the same evidence and the same investigators, so a step taken on the civil side — an admission, a settlement, a produced document — can have direct consequences on the criminal side. Managing both at once is one of the central challenges of an FCA defense.

Conduct That Triggers Liability

31 USC 3729 lists several distinct categories of prohibited conduct. The ones that arise most often in health care cases include:

• Presenting a false claim — knowingly presenting, or causing to be presented, a false or fraudulent claim for payment or approval.
• Making a false record or statement — knowingly making, using, or causing the use of a false record or statement material to a false claim.
• Conspiracy — conspiring to commit any FCA violation.
• Reverse false claims — knowingly concealing or improperly avoiding an obligation to pay money to the government, such as failing to return a known overpayment within the required time.

In the health care context, “false claims” arise from billing for services not rendered, upcoding, billing for medically unnecessary services, or claims tainted by an illegal kickback. That last category links the FCA directly to the Anti-Kickback Statute: by law, a claim that results from a kickback is automatically a false claim, which is one of the most common ways a kickback investigation turns into massive financial exposure.

The “Knowing” Standard

A defining feature of the False Claims Act is its mental-state requirement, which is broader than the criminal fraud statutes. Under 31 USC 3729, “knowingly” means any of three things: actual knowledge that the claim is false; deliberate ignorance of whether it is true or false; or reckless disregard of its truth or falsity.

Critically, the government does not have to prove a specific intent to defraud. That lower threshold is what makes the FCA easier to pursue than a criminal case — a provider who recklessly disregarded clear billing rules can be liable even without a deliberate plan to cheat. The defense often focuses here. Showing that a provider’s interpretation of an ambiguous billing rule was objectively reasonable can defeat the “knowing” element, a point reinforced by recent Supreme Court guidance examining how a defendant’s own understanding at the time is evaluated. A genuine, reasonable reading of an unclear regulation is not “knowing” falsity, even if the government later disagrees with it.

Penalties Under 31 USC 3729

FCA liability has two components: treble damages and a per-claim civil penalty. Because each individual claim is counted separately, the penalties alone can dwarf the underlying loss.

A simple example shows the scale. A provider who bills $1 million in false claims faces $3 million in treble damages — before adding a per-claim penalty for each of what may be hundreds or thousands of individual claims. In a high-volume billing practice, the per-claim penalties alone can exceed the actual loss many times over. The statute does, however, offer a meaningful incentive to come forward: a defendant who reports the violation within 30 days of learning of it and fully cooperates may have damages reduced from treble to double.

Qui Tam Whistleblower Lawsuits

The False Claims Act is unusual because it lets private individuals — often current or former employees — file suit on the government’s behalf. These “qui tam” cases are filed under seal, which means the defendant typically has no idea a case exists, sometimes for years, while the Department of Justice investigates and decides whether to “intervene” and take over the litigation. A successful whistleblower, called a “relator,” can receive a share of the recovery, generally 15 to 25 percent if the government intervenes and up to 30 percent if it declines and the relator proceeds alone.

Those financial incentives are substantial — relator shares in large health care cases have reached into the tens of millions of dollars — which is why so many health care fraud cases begin with an insider complaint. For a defendant, a sealed qui tam suit is often the first sign of trouble, and because the government reviews the same facts for possible criminal charges during the seal period, early and coordinated defense strategy is essential. We explain the whistleblower process in detail in our article on qui tam whistleblower cases.

Related Federal Statutes

• 18 USC 1347 (health care fraud) — the criminal counterpart often investigated in parallel with an FCA case.
• 42 USC 1320a-7b (Anti-Kickback Statute) — kickback-tainted claims are automatically false claims under the FCA.
• 42 USC 1395nn (Stark Law) — self-referral violations can likewise render claims false.
• 18 USC 1035 (false statements in health care matters) — a criminal companion where false statements underlie the claims.

How False Claims Act Cases Are Defended

Strong FCA defenses frequently attack the “knowing” element by showing that a provider’s billing reflected a reasonable interpretation of unclear guidance rather than recklessness or deliberate ignorance. Closely related is the “materiality” defense — challenging whether the alleged falsehood actually mattered to the government’s decision to pay, since a technical violation the government would have paid anyway may not be actionable.

Beyond those, the defense often disputes the government’s damages and claim-counting methodology, which can dramatically reduce exposure, since how claims are counted directly drives the penalty total. Where a qui tam relator’s allegations are based on information already publicly disclosed, or where the relator is not the original source, procedural bars may defeat the suit entirely. And throughout, the civil case must be defended with a constant eye on any parallel criminal investigation, because the two are deeply intertwined.

For a closer look at the whistleblower side and what to expect, see our explainer on qui tam whistleblower cases. The right strategy depends on the specific claims, the evidence, and whether a criminal investigation is running alongside the civil one.

Facing an FCA Investigation or Qui Tam Suit? Contact Us

False Claims Act exposure can escalate quickly, and a civil case often signals a parallel criminal probe under statutes like the federal health care fraud law. The earlier you involve experienced counsel, the better positioned you are to manage both. KN Law Firm, APLC defends health care fraud matters in the U.S. District Court for the Central District of California and before the Ninth Circuit. Call (888) 950-0011 for a free, confidential consultation with attorney Chris Nalchadjian, available 24/7 in English and Spanish.