A false statement goes by a different legal name depending on where it’s made, who it’s made to, and what it damages. The legal names for a false statement include perjury (lying under oath), false statements to the federal government, false claims for government payment, fraud and misrepresentation, mail and wire fraud, defamation in the forms of libel and slander, and falsification of records. Each category sits in a different part of the law, and the consequences range from civil money damages to 20 years in federal prison.
Perjury
Perjury is the name for a false statement made under oath or penalty of perjury. It applies to testimony in court, statements in depositions, and sworn written documents such as affidavits. Three things have to be true: the statement was false, the person knew it was false, and it was made under a legally recognized oath or declaration.1Legal Information Institute. Declaration Under Penalty of Perjury
Federal perjury law adds a fourth requirement: the false statement must be “material,” meaning it had the potential to influence the outcome of the proceeding. A lie about something irrelevant doesn’t qualify, even if clearly intentional. A conviction carries up to five years in prison.2Office of the Law Revision Counsel. 18 U.S. Code 1621 – Perjury Generally
Pressuring or persuading someone else to lie under oath has its own name: subornation of perjury. You don’t need to be the person testifying. Procuring another person’s perjury carries the same five-year maximum.3GovInfo. 18 U.S. Code 1622 – Subornation of Perjury
False Statements to the Federal Government
Lying doesn’t have to be sworn to be a federal crime. Under 18 U.S.C. 1001, knowingly making a false statement on any matter within the jurisdiction of the federal government is a felony, punishable by up to five years in prison. If the statement involves terrorism, the maximum rises to eight years.4Office of the Law Revision Counsel. 18 U.S. Code 1001 – Statements or Entries Generally
The statute is broad. It reaches false statements made to any branch of the federal government, whether spoken, written, or buried inside a document. Lying on a federal form, concealing a material fact during a federal investigation, or submitting a document you know contains false information all fall within it. There is no oath requirement. The statement just needs to be material and knowingly false, and federal prosecutors use the charge constantly to catch people who assume only sworn lies count.
False Claims Against the Government
A false request for government money has its own name and its own statute. The False Claims Act covers anyone who knowingly presents a false or fraudulent claim for government payment, from inflated defense contracts to fabricated healthcare billing. Civil liability runs to three times the government’s actual losses plus a per-claim penalty.5Office of the Law Revision Counsel. 31 U.S. Code 3729 – False Claims
The original penalty range of $5,000 to $10,000 per claim has been adjusted upward for inflation, with recent federal adjustments setting the range at $14,308 to $28,619 per claim on top of treble damages.6Federal Register. Civil Monetary Penalties Inflation Adjustments for 2025 Because each individual false billing counts as a separate claim, exposure stacks quickly. A separate criminal false claims statute carries prison time on top of the civil remedy.7U.S. Department of Health and Human Services Office of Inspector General. Fraud and Abuse Laws
Fraud and Misrepresentation
In business and contract disputes, false statements go by two names: misrepresentation and fraud. Misrepresentation is the broader term. It means making a false or misleading statement of fact that another party relies on, often when entering a contract. Misrepresentation isn’t always intentional. It can result from honest mistakes or carelessness.8Legal Information Institute. Misrepresentation
Fraud, technically fraudulent misrepresentation, is the intentional version. To prove it, the injured party has to show a false statement, knowledge or recklessness about its falsity, intent that the other person rely on it, actual reliance, and resulting financial harm.9Legal Information Institute. Fraudulent Misrepresentation Failing on any element sinks the case, which is why fraud is hard to prove.
False advertising fits here too. Under the Lanham Act, false or misleading claims about goods or services in commercial advertising can trigger civil liability, and competitors harmed by the advertising can sue directly over misrepresentations about a product’s quality, characteristics, or origin.10Office of the Law Revision Counsel. 15 U.S. Code 1125
Mail Fraud and Wire Fraud
When a fraudulent scheme uses the mail or electronic communications to move forward, it picks up a separate federal name and much steeper penalties. Mail fraud covers any scheme to defraud that uses the postal system or a commercial carrier in furtherance of the fraud.11Office of the Law Revision Counsel. 18 U.S. Code 1341 – Frauds and Swindles Wire fraud covers the same conduct when it travels through phone lines, email, the internet, or any other electronic transmission.12Office of the Law Revision Counsel. 18 U.S. Code 1343
Both carry a maximum sentence of 20 years in prison. If the fraud targets a financial institution or exploits a presidentially declared disaster, the maximum climbs to 30 years and a $1 million fine.12Office of the Law Revision Counsel. 18 U.S. Code 1343 These are among the most commonly charged federal offenses because nearly every modern fraud involves an email, a phone call, or a mailed document, and prosecutors routinely add wire or mail fraud counts on top of other false-statement charges to increase sentencing exposure.
Defamation: Libel and Slander
A false statement that damages someone’s reputation is called defamation. It splits into two forms: libel for written or published false statements, and slander for spoken ones.13Legal Information Institute. Defamation Defamation is primarily a civil claim rather than a criminal one. The injured person sues for damages.
A defamation plaintiff must show a false statement of fact about them, communication of that statement to at least one other person, at least negligence by the speaker about its truth, and reputational harm.13Legal Information Institute. Defamation Opinions aren’t defamation, however harsh. Only false statements presented as fact qualify.
Public figures face a higher bar. Under New York Times Co. v. Sullivan, a public official or public figure can’t win by showing mere negligence; they have to prove “actual malice,” meaning the speaker knew the statement was false or acted with reckless disregard for the truth.14Justia Law. New York Times Co. v. Sullivan, 376 U.S. 254 (1964) Private individuals only need to show the speaker failed to use reasonable care.
Some categories of false statements are treated as so inherently damaging that courts presume harm without proof of specific losses. These include false accusations of criminal conduct, false claims about professional competence, and false statements alleging sexual misconduct or a serious contagious disease. That doctrine is called defamation per se.
Falsifying or Destroying Records
A false statement doesn’t have to be spoken or sent to another person. Creating false entries in documents, or destroying real ones, has its own name and its own statute. Under 18 U.S.C. 1519, knowingly falsifying a record or destroying a document to obstruct a federal investigation or agency proceeding carries up to 20 years in prison.15Office of the Law Revision Counsel. 18 U.S. Code 1519 – Destruction, Alteration, or Falsification of Records in Federal Investigations and Bankruptcy
The reach is wide: altering financial records, backdating contracts, deleting emails during litigation, or shredding documents after receiving a subpoena. No formal investigation needs to be underway. Acting in contemplation of one is enough. The 20-year maximum makes this one of the most severely punished false-statement offenses in federal law.
When One Lie Fits Several Names
A single false statement often falls under more than one of these labels at once. A fraudulent insurance claim submitted by email could be charged as wire fraud, as a false claim under the False Claims Act, and as a violation of 18 U.S.C. 1001 if directed at a federal program. If the same person then lies about it under oath, perjury gets added. Federal prosecutors stack these charges, and each one carries its own penalty range.
The names matter because they tell you the consequences. Civil claims like defamation and fraudulent misrepresentation produce money damages. Criminal charges like perjury, wire fraud, and false statements to the government produce prison time. Fraud against government programs can expose a person to both at once. Identifying which legal name attaches to a false statement is the first step in understanding what the law will do about it.