1. What Perjury Means under New York Law
Under New York Penal Law Article 210, perjury is not simply saying something untrue in court. The charge requires proof of specific elements, and which degree applies determines how serious your exposure is.
Three Degrees of Perjury
New York defines perjury charges across three levels:
Perjury in the third degree (NY Penal Law §210.05) covers any false statement made under oath in a proceeding. This is a Class A misdemeanor, carrying up to one year in jail.
Perjury in the second degree (NY Penal Law §210.10) applies when the false statement appears in a subscribed written instrument, made with intent to deceive a public servant in the performance of their official functions. This is a Class E felony, with a maximum sentence of four years.
Perjury in the first degree (NY Penal Law §210.15) requires a false statement in an official proceeding, made with intent to deceive, where the statement is material to the action or proceeding. This is a Class D felony, carrying up to seven years.
What "Swearing Falsely" Actually Requires
A statement is not legally false because it later turns out to be incorrect. New York law requires that the defendant did not believe the statement to be true at the time they made it. Prosecutors must prove both the falsity of the statement and the defendant's knowledge of that falsity. The difference between a genuine mistake and a deliberate lie is where most perjury defenses begin.
2. Penalties and Collateral Consequences
Sentencing exposure depends on the degree of the charge, but the consequences do not end at the courtroom door. A conviction at any level creates a permanent record.
| Charge | Classification | Maximum sentence |
| Perjury in the third degree | Class A misdemeanor | 1 year in jail |
| Perjury in the second degree | Class E felony | 4 years in prison |
| Perjury in the first degree | Class D felony | 7 years in prison |
First-time offenders sometimes receive probation or a conditional discharge, depending on the specific facts and the strength of the defense presented.
Beyond the Sentence
A felony conviction reaches further than sentencing. Professional license boards in law, medicine, finance, and real estate treat perjury convictions as grounds for disciplinary review, and many employers in regulated industries conduct criminal history checks. Prosecutors also frequently file obstruction of justice charges alongside perjury when the alleged conduct touches a live investigation, which adds to the total exposure considerably.
3. How Prosecutors Build a Perjury Case
Prosecutors do not charge perjury without solid corroboration, which means the defense has specific points to attack. Knowing how these cases are assembled shows where a challenge can succeed.
The Two-Witness Rule
New York Penal Law §210.50 bars a perjury conviction based on the testimony of one witness alone, even a witness who directly contradicts the defendant's sworn statement. The prosecution must corroborate the falsity through independent evidence: documents, recordings, financial records, or multiple witnesses.
This rule limits which cases prosecutors can realistically pursue. When a case comes down to one person's account against another's, without independent corroboration, perjury charges rarely follow.
What Investigators Look for
Perjury investigations work by comparing records: deposition transcripts against trial testimony, sworn filings against financial statements, one witness's account against documented facts. The investigation typically begins before formal charges are filed. By the time a defendant receives formal notice, prosecutors have already mapped the inconsistencies they intend to rely on.
4. Where Perjury Charges Most Often Arise
Most New York perjury charges come from four settings, each with different procedural dynamics that shape how a defense is built.
- Civil litigation: Contradictions between deposition testimony and trial testimony, or between sworn filings and documents produced in discovery, are the most common basis for referrals.
- Criminal proceedings: Defendants who testify face heightened risk when their account conflicts with physical evidence or other witness statements.
- Grand jury proceedings: Grand jury testimony is sworn and carries the same legal weight as trial testimony. Witnesses often appear without counsel and may not recognize the exposure in specific answers.
- Family court and divorce proceedings: Sworn financial disclosures and custody-related filings frequently contain inconsistencies that surface during litigation and trigger referrals.
5. Defense Strategies That Can Work
New York's perjury statute requires the prosecution to prove both materiality and intent to deceive. Both elements give defense counsel real room to work, and each of the three approaches below targets one of them directly.
Challenging Materiality
First-degree perjury requires the false statement to be material to the outcome of the proceeding. If the statement had no bearing on the result, the most serious charge cannot stand. Our attorneys assess whether the prosecution can genuinely establish materiality, or whether the statement was collateral to the issues the court actually decided.
Lack of Intent to Deceive
Inconsistent statements are not automatically perjury. Witnesses give accounts in one proceeding that differ from what they said elsewhere, and those differences often have an innocent explanation. Showing that the defendant believed their statement to be true, or that the inconsistency reflects honest confusion rather than deliberate falsehood, defeats the intent element the prosecution must prove.
The Recantation Defense
New York law recognizes a defense when a defendant recants a false statement before it has substantially affected the proceeding. The timing of the recantation is what determines whether the defense applies, and this requires a close review of the procedural record.
6. Why You Need Legal Representation Immediately
In perjury cases, what happens before formal charges are filed often matters more than what happens at trial. The window between an investigation and a charging decision is narrow, and the choices made during it are hard to undo.
Statements given to investigators early in the inquiry can confirm the inconsistency prosecutors are looking for, or open exposure to additional charges. Our attorneys advise clients on how to respond to investigative contact, which documents to preserve, and what to avoid before the picture is clear. Once charges are filed, evidence is harder to recover and procedural deadlines move fast. Our white collar criminal defense practice covers perjury and related charges across New York state and federal courts.
7. Frequently Asked Questions
Can I be charged with perjury for an honest mistake?
No. New York law requires that you did not believe the statement to be true when you made it. A genuine mistake, even one that affected a proceeding, does not satisfy the legal definition.
Is grand jury testimony subject to the same perjury laws as trial testimony?
Yes. Grand jury testimony is given under oath, and false statements made there carry the same penalties as false statements made at trial.
What is the difference between perjury and obstruction of justice?
Perjury is making a false sworn statement in a formal proceeding. Obstruction of justice covers a broader category of conduct that interferes with an investigation, including witness tampering and evidence concealment. Both charges can and often do arise from the same set of facts.
How does the two-witness rule affect my case?
The prosecution must corroborate the alleged falsity with evidence beyond one witness's testimony. When the case rests primarily on a credibility dispute between you and another witness, the prosecution may not be able to meet that standard.
When should I contact an attorney?
Before responding to any investigative contact. If you have given sworn testimony and received contact from investigators or prosecutors, call before you answer any further questions. The earlier you have representation, the more options remain available.
10 Feb, 2026
