By the The Bulldog Law Criminal Defense Team  •  Reviewed by a licensed California criminal defense attorney

Penal Code § 118 makes PERJURY a straight felony 2, 3, or 4 years committed by WILLFULLY stating as true a MATERIAL fact you KNOW to be false, either under oath (testimony, depositions) or in any of California's oath-equivalents: the DECLARATION signed under penalty of perjury, the certified form, the sworn application. That second category is where the statute actually lives, because California runs on declarations every family-court filing, fee waiver, DMV form, unemployment and benefits application, and civil motion carries the penalty-of-perjury signature line, meaning ordinary people sign potential perjury exposure dozens of times a decade without a courtroom in sight.

The elements are also the protections, and they're stronger than people fear: WILLFULNESS excludes honest mistakes, faulty memory, and estimates offered in good faith being WRONG is not perjury, LYING is; MATERIALITY excludes falsehoods that couldn't influence the proceeding the embarrassing fib about something irrelevant isn't this felony; a valid OATH or statutory declaration must actually attach; and California preserves a rule most defendants never hear: the CORROBORATION REQUIREMENT perjury cannot be proven by one witness's contradicting testimony alone; the law demands two witnesses, or one witness plus independent corroborating evidence, a structural protection against swearing contests. This guide from The Bulldog Law's criminal defense team covers where these charges really come from, the recantation trap, the related statutes, and the defenses.

Where Perjury Charges Actually Come From

• Family court the #1 modern source: custody and support declarations swearing to income, residence, and the other parent's conduct the war-by-declaration that custody litigation becomes, generating cross-accusations of perjury as leverage; courts refer the egregious cases, and everything in a family-law declaration deserves the care of testimony because legally it IS testimony.
• The DV recantation trap the alleged victim who gave a sworn or recorded statement and later signs a contradicting declaration has created two irreconcilable sworn accounts and prosecutors weaponize the exposure both directions: pressure on recanting witnesses, and dissuading charges against whoever procured the paper. The lawful path for genuine recantation runs through counsel never through a notarized do-it-yourself reversal.
• Applications and benefits DMV forms, unemployment and disability claims, financial declarations, immigration-adjacent state forms: the certified checkbox converts application fraud into perjury exposure alongside the fraud counts themselves.
• Testimony and depositions the classic setting, with the classic reality: prosecutions are RARE and reserved for clear, provable, material lies because materiality, willfulness, and corroboration make marginal cases unwinnable, and because ‘the witness lied' is an argument in every trial and a charge in almost none.
• The neighbors SUBORNATION (§ 127 procuring another's perjury, same felony range), false statements not under oath to police (a different, lesser statute the false REPORT, § 148.5, a misdemeanor), preparing false documentary evidence, and the aggravated form the code reserves its worst number for: perjury procuring an innocent person's execution remains among California's gravest offenses.

Defenses and the Honest Advice Around Sworn Paper

1. No willful falsehood mistake, memory, estimate, and interpretation: the income figure that was a good-faith approximation, the date remembered wrong, the account that reflected honest perception none is perjury, and the surrounding record (drafts, sources consulted, promptness of correction) proves the state of mind.
2. Immateriality the falsehood must be capable of influencing the proceeding's outcome; collateral and irrelevant misstatements fail the element as a matter of law.
3. The literal-truth and ambiguity defense answers literally true but unresponsive, and answers to genuinely ambiguous questions, are not perjury the questioner's imprecision is not the answerer's felony.
4. The corroboration rule one witness swearing you lied is legally insufficient; demand the corroboration and marginal cases end.
5. Correction, context, and the standard audit prompt correction through a supplemental declaration filed the moment an error is discovered, before reliance is powerful evidence against willfulness (and the right practice besides); leverage-driven referrals from custody wars and civil feuds meet motive evidence and the weak-case checklist; and resolution structure matters, because perjury is a crime of moral turpitude with professional-license and immigration consequences that outlast the sentence, making charge-negotiation and record relief planning part of the defense from day one. THE PRACTICE RULES for everyone who signs sworn paper: read every declaration line by line before signing, never let anyone a lawyer's assistant, an agency clerk, a family member summarize what you're swearing to, attach documents instead of characterizing them from memory, correct errors immediately in writing, and when a declaration is being demanded of you in a conflict (a recantation, a favorable custody statement), get independent advice BEFORE signing because sworn paper is forever, and this statute is why.

Frequently Asked Questions

What is the penalty for perjury in California?

It's a straight felony: 2, 3, or 4 years, with probation available in appropriate cases and the aggravated form (perjury that procures an innocent person's conviction and execution) carries the code's most severe treatment. Subornation (getting someone else to commit perjury, PC 127) carries the same range. The realistic picture: prosecutions are uncommon and concentrate on clear, material, well-corroborated lies often attached to fraud, family-court, or obstruction cases but the felony's collateral weight (a crime of moral turpitude affecting licenses and immigration) makes even charged-and-negotiated cases serious. If a perjury allegation or referral has surfaced, engage counsel before making any statement about the underlying declaration explanations are how mistakes get recharacterized as lies.

Can I be charged with perjury for a signed declaration not just courtroom testimony?

Yes that's the statute's main modern territory: California law expressly treats statements ‘certified under penalty of perjury' (CCP 2015.5 declarations, DMV and agency forms, family-court filings, fee waivers) as oath-equivalents, so the signature line you've signed dozens of times carries full PC 118 exposure. The protections travel too: the statement must be willfully false (not mistaken), material, and proven with corroboration. The practice rules that keep honest people safe: read before signing, never swear to summaries you haven't verified, attach documents rather than characterizing them, and file a prompt written correction the moment you discover an error - the supplemental declaration is both the right thing and the best evidence of good faith.

Is an honest mistake in sworn testimony perjury?

No willfulness is the heart of the crime: you must have known the statement was false when you made it, so faulty memory, good-faith estimates, misunderstandings, and honest errors are not perjury no matter how wrong they turn out. The evidence of innocence is usually the paper trail: the sources you consulted, drafts showing your process, the promptness of your correction once the error surfaced, and the absence of motive to lie about that fact. Two related shields: literally true answers to imprecise questions aren't perjury, and immaterial errors can't support the charge at all. If you've discovered an error in something you swore: correct it in writing immediately through counsel speed of correction is the single best proof there was never a lie.

Someone lied in a declaration against me can I have them charged with perjury?

You can document and report it, but temper expectations: perjury prosecutions are rare, discretionary, and reserved for clear, material, corroborated lies prosecutors decline swearing-contest referrals daily, especially from custody and civil conflicts where cross-accusations are the norm. The productive path usually isn't the criminal referral it's using the lie WHERE IT LIVES: impeachment in the family or civil case (catching a declarant in a provable falsehood can turn the whole proceeding), evidentiary sanctions, credibility findings that outlast any charge. Build the proof properly the contradicting documents, records, and witnesses and let counsel deploy it in the forum that actually decides your dispute, with the criminal referral held as the exceptional move for the exceptional lie.

Perjury is the felony that gives every signature its weight - broad enough to reach a DMV form, bounded by protections (willfulness, materiality, corroboration) that keep honest error safe. Respect the paper, correct mistakes fast, and when sworn statements become weapons in a conflict, bring counsel to the signing table. The Bulldog Law's criminal defense team handles perjury, subornation, and sworn-statement crises statewide. Contact the firm online or call (888) 928-1609.