Penal Code 261.5 PC: Statutory Rape Penalties and Defenses

California Penal Code section 261.5 makes it a crime to have sexual intercourse with anyone under 18 who is not your spouse. Depending on the age difference between the two people, the offense can be charged as a misdemeanor with up to a year in county jail, or as a felony with up to four years in state prison. Fines reach $10,000, civil penalties can add up to $25,000 more, and many convictions trigger sex offender registration, firearm bans, and immigration consequences.¹

What the Law Prohibits

The statute targets one act: sexual intercourse between a person 18 or older (or an older minor) and a minor who is not their spouse. A minor is anyone under 18.¹ Consent is not a defense. The premise of the law is that a person under 18 cannot legally consent to sex outside marriage, so the prosecution never has to prove force, coercion, or resistance.

The physical threshold is low. Under Penal Code 263, “any sexual penetration, however slight, is sufficient to complete the crime.”² Full intercourse is not required. If penetration occurred, the other person was under 18, and the two were not married, the elements are met.

How the Age Gap Sets the Charge

Section 261.5 splits violations into three tiers based on the age difference between the parties. The tier controls whether prosecutors can file a felony at all and, if they do, the length of the sentence.

Within three years of age (subsection b). When the two people are no more than three years apart, the offense is a misdemeanor only. Prosecutors cannot elevate it to a felony. This is sometimes called the “Romeo and Juliet” provision because it treats near-peers differently from an adult pursuing a much younger teenager.³

More than three years apart (subsection c). When the minor is more than three years younger than the other person, the offense is a wobbler. Prosecutors can charge it as a misdemeanor (up to a year in county jail) or as a felony punished under Penal Code 1170(h).³

Adult 21 or older with a minor under 16 (subsection d). This is the most serious tier. It is also a wobbler, but the felony sentence is set at two, three, or four years.³ The legislature treated the combination of an adult well past 21 and a young teenager as the most serious version of the offense.

Criminal Penalties

Section 261.5 does not carry its own fine schedule beyond a small $70 assessment the judge may add.¹ California’s general fine statute fills that gap: up to $1,000 for a misdemeanor and up to $10,000 for a felony.⁴

Misdemeanor Sentences

A misdemeanor conviction under any subsection carries up to one year in county jail. Judges frequently impose informal probation with conditions like counseling, community service, or a stay-away order. In subsection (b) cases with no prior record, probation without jail time is common.

Felony Sentences

Felony sentencing under subsections (c) and (d) runs through Penal Code 1170(h), which generally sends defendants to county jail rather than state prison. There is a significant catch: if the court orders sex offender registration, the sentence must be served in state prison instead.⁵ Subsection (c) felonies carry 16 months, two years, or three years. Subsection (d) felonies carry two, three, or four years.³

Civil Penalties on Top of the Criminal Case

Subsection (e) allows the state to pursue civil penalties against the adult party, separate from any criminal punishment. The amounts scale with the age gap:

Less than two years older: up to $2,000
At least two years older: up to $5,000
At least three years older: up to $10,000
Adult 21 or older with a minor under 16: up to $25,000¹

Civil penalties are collected through a separate proceeding. A defendant can face both actions, and resolving the criminal case does not automatically resolve the civil exposure.

Sex Offender Registration

For offenses occurring on or after January 1, 2026, convictions under subsection (c) or subsection (d) trigger mandatory sex offender registration under Penal Code 290.⁶ Subsection (b) misdemeanors do not carry automatic registration, though a judge can still order it.

An exemption applies when the defendant is no more than 10 years older than the minor and the 261.5 conviction is the person’s only registerable offense.⁶ Even then, the sentencing judge retains discretion to order registration.

When registration is required, the person enters Tier One of California’s three-tier system, meaning a minimum of 10 years on the registry.⁷ Failing to register is a separate crime: a misdemeanor with up to a year in county jail if the underlying offense was a misdemeanor, or a felony carrying 16 months to three years in state prison if the underlying offense was a felony.⁸

Firearm, Passport, and Immigration Consequences

A felony conviction under 261.5 triggers a federal firearms ban. Under 18 U.S.C. 922(g)(1), anyone convicted of a crime punishable by more than a year in prison is barred from possessing firearms or ammunition.⁹ The federal ban has no expiration and no state-law restoration path. Misdemeanor convictions under subsection (b) do not trigger it, because the maximum sentence is one year, not more than one year.

If a conviction requires sex offender registration, the passport consequences follow. Under 22 U.S.C. 212b, the State Department cannot issue a passport to a “covered sex offender” unless it carries a visible endorsement identifying the holder as someone convicted of a sex offense against a minor.¹⁰ Existing passports can be revoked and reissued with the identifier. The endorsement is removed only when registration is no longer required.

For non-citizens, the stakes are higher still. Federal immigration law treats “sexual abuse of a minor” as an aggravated felony under INA 101(a)(43)(A).¹¹ An aggravated felony conviction makes a person deportable, blocks most forms of relief from removal, and permanently prevents establishing the good moral character required for naturalization.¹² Whether a particular 261.5 conviction qualifies depends on how the case was charged and sentenced, and even a misdemeanor can be treated as a crime involving moral turpitude, which creates independent grounds for deportation and inadmissibility.

The Mistake-of-Age Defense

California is one of the few states that allows a mistake-of-age defense to statutory rape. In People v. Hernandez (1964), the California Supreme Court held that a defendant can raise a lack of criminal intent if they had an honest and reasonable belief the other person was 18 or older.¹³

The defense is not easy to win. The belief must be both genuinely held and objectively reasonable. A minor saying “I’m 18” at a party is unlikely to be enough on its own. Courts consider the totality of the circumstances, including whether the minor used a fake ID, physical appearance, the setting where they met, and whether a reasonable person would have had doubts. The defense is generally unavailable when the minor is under 14.

How Long Prosecutors Have to File Charges

The state does not have unlimited time. For a misdemeanor under subsection (b), prosecutors have one year from the date of the offense. For felony violations under subsections (c) and (d), they have three years. If DNA evidence is collected and analyzed within two years of the offense and identifies a suspect, prosecutors get an additional year from the date of identification. The clock starts on the date of the alleged act, not the date of disclosure or discovery, which matters in cases where a minor comes forward months or years later.

1
California Legislative Information. California Code Penal Code 261.5
2
California Legislative Information. California Code Penal Code 263
3
California Legislative Information. California Code PEN 261.5
4
California Legislative Information. California Code PEN 672
5
California Legislative Information. California Code PEN 1170h
6
California Legislative Information. California Code PEN 290
7
California Legislative Information. California Code Penal Code 290
8
California Legislative Information. California Code PEN 290.018
9
Office of the Law Revision Counsel. 18 USC 922
10
Office of the Law Revision Counsel. 22 USC 212b
11
Legal Information Institute. 8 USC 1101(a)(43) – Aggravated Felony
12
U.S. Citizenship and Immigration Services. Chapter 4 – Permanent Bars to Good Moral Character
13
Supreme Court of California. People v. Hernandez – 61 Cal.2d 529