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.
This page explains how the False Claims Act works, what conduct triggers liability, the “knowing” standard, how penalties are calculated, 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. Major 1986 amendments transformed it into the powerful enforcement tool it is today — raising damages from double to treble and strengthening the whistleblower provisions. 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 each year, and a civil FCA matter frequently runs in parallel with a criminal investigation under statutes such as 18 USC 1347. The civil and criminal tracks can share the same evidence, so how a defendant responds on one side can affect the other.
Conduct That Triggers Liability
31 USC 3729 lists several distinct categories of prohibited conduct. The most common 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 (for example, failing to return a known overpayment).
In health care, “false claims” can 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.
The “Knowing” Standard
A defining feature of the False Claims Act is its mental-state requirement. 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 broader — and easier to pursue — than the criminal fraud statutes. 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 on how a defendant’s good-faith understanding is evaluated.
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.
| Component | Amount | Notes |
|---|---|---|
| Treble damages | 3x the government’s actual damages | May be reduced to not less than 2x for qualifying self-disclosure and cooperation |
| Per-claim civil penalty | Approx. $14,308 to $28,619 per claim (as of mid-2025) | Inflation-adjusted periodically; applies to each false claim separately |
| Other exposure | Government’s costs; potential program exclusion | Exclusion and related administrative action handled by HHS-OIG |
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. The statute does offer a meaningful incentive to come forward: a defendant who reports the violation within 30 days and fully cooperates may see damages reduced to double rather than triple.
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, giving the Department of Justice time to investigate and decide whether to intervene. A successful whistleblower (the “relator”) can receive a share of the recovery, which is why so many health care fraud cases begin with an insider complaint.
For defendants, a sealed qui tam suit is often the first sign of trouble — and because the government reviews the same facts for possible criminal charges, early, coordinated defense strategy is essential.
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 for false statements underlying claims.
How False Claims Act Cases Are Defended
Strong FCA defenses frequently attack the “knowing” element by showing a provider’s billing reflected a reasonable interpretation of unclear guidance, not recklessness. Others challenge “materiality” — whether the alleged falsehood actually mattered to the government’s payment decision — or dispute the government’s damages and claim-counting methodology, which can drastically cut exposure. Where a qui tam relator’s allegations are based on publicly disclosed information, procedural bars may apply.
For a closer look at the whistleblower process 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 parallel criminal investigation exists.
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. The earlier you involve experienced counsel, the better positioned you are. 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.
Facing a False Claims Act Case?
FCA exposure can multiply fast — and a qui tam suit often signals a parallel criminal probe. Speak with attorney Chris.