Connecticut Age of Consent: Laws, Exceptions, and Penalties

The age of consent in Connecticut is 16. Once a person reaches that age, state law no longer treats consensual sexual activity as a crime based on age alone. Two important qualifiers sit on top of that rule: a close-in-age exception that protects some teenage relationships from prosecution, and a higher threshold of 18 when the older person holds a position of authority over the younger one.

The 16 Baseline

Below 16, Connecticut law treats a person as legally incapable of consenting to sexual activity, no matter what they say or do at the time.¹ That rule drives the state’s second-degree sexual assault statute and the related sexual-contact offenses. A person at or above 16 can legally consent, subject to the authority-figure rule described further down.

Close-in-Age Exception

Connecticut carves out a narrow gap for teenagers close in age. Sexual intercourse with someone who is 13, 14, or 15 is not second-degree sexual assault when the older person is no more than three years older.² A 17-year-old with a 14-year-old falls inside the exception. An 18-year-old with a 14-year-old does not.

Sexual contact short of intercourse follows a slightly different structure. Fourth-degree sexual assault requires the older person to be more than three years older when the younger person is 13 or 14, or more than two years older when the younger person is under 13.³ The exception is meant to distinguish peer relationships from conduct by much older individuals, and it closes quickly once the age gap widens.

When Consent Doesn’t Count Regardless of Age

Even above 16, Connecticut law treats consent as legally impossible under three defined conditions. The statutory definitions are narrower than many people assume.

A person is mentally incapacitated only when someone else administered drugs or intoxicants to them without their consent, or committed some other act on them without consent, that temporarily left them unable to understand or control their conduct. Voluntary intoxication alone does not meet this statutory definition.⁴
Mentally defective covers a person whose mental disease or defect leaves them permanently incapable of understanding the nature of sexual conduct.
Physically helpless means unconscious or otherwise physically unable to communicate unwillingness. Courts have emphasized that physical incapacity by itself does not automatically meet this definition; the question is whether the person could communicate a lack of consent at the time.⁵

Sexual activity with a person in any of these three conditions can support second-degree or fourth-degree sexual assault charges depending on whether the conduct involved intercourse or contact.

Higher Threshold for Authority Figures

The effective age of consent climbs to 18 when the older person holds a position of power or trust over the younger one. The fourth-degree statute explicitly reaches sexual contact between someone under 18 and their guardian or anyone otherwise responsible for the general supervision of that minor’s welfare, along with anyone who holds supervisory or disciplinary authority over a person in legal custody or detained in a hospital or institution.³ The second-degree statute contains parallel provisions for sexual intercourse in those same relationships.²

In practice the language reaches teachers, coaches, school employees, psychotherapists, probation officers, and similar figures. The phrase “general supervision of welfare” is written broadly on purpose, so the list is not confined to roles the statute names. If an adult has meaningful authority over a minor’s daily life, the relationship likely falls inside the statute.

Charges and Penalties if the Line Is Crossed

Connecticut’s sexual assault statutes are graduated. Severity depends on the victim’s age, whether force was used, and whether the conduct involved intercourse or contact.

Second-Degree Sexual Assault

This is the charge most directly tied to age of consent. Under § 53a-71, sexual intercourse with a 13-, 14-, or 15-year-old is second-degree sexual assault when the older person is more than three years older. It is a Class C felony by default, carrying 1 to 10 years in prison and a fine up to $10,000. When the victim is under 16, the offense elevates to a Class B felony, with 1 to 20 years and a fine up to $15,000.²⁶ A conviction under this section carries a mandatory minimum of nine months that the court cannot suspend or reduce. The same statute covers intercourse in the authority-figure relationships described above.

Fourth-Degree Sexual Assault

Fourth-degree charges under § 53a-73a apply to sexual contact rather than intercourse, and cover the underage, authority-figure, and nonconsensual situations. The offense is a Class A misdemeanor or a Class D felony depending on the circumstances.³ A Class A misdemeanor carries up to one year in jail; a Class D felony up to five years.

First-Degree Sexual Assault

The most serious charge, under § 53a-70, applies when sexual intercourse involves force or the threat of force, or when the victim is under 13 and the offender is more than two years older. It is a Class A or Class B felony. When both force and a victim under 16 are involved, or when the victim is under 13, the charge is a Class A felony, which carries the state’s most severe prison sentences.⁷

Risk of Injury to a Minor

Prosecutors routinely add a charge under § 53-21 alongside sexual assault counts. That statute makes it a Class C felony to put a child under 16 in a situation likely to impair their health or morals, and its sexual-contact subsection carries up to 10 years and a $10,000 fine. It appears on a criminal record as a separate conviction from the sexual assault charge.

Sexting Falls Outside the Consent Framework

The age of consent does not protect minors who share sexually explicit images, and this is where teenagers most often stumble into serious legal exposure without realizing it. Under § 53a-196h, anyone under 16 who transmits a sexually explicit image of themselves to another person under 18 commits a Class A misdemeanor. So does anyone under 18 who possesses such an image of a person under 16 who transmitted it voluntarily.⁸ The penalty is lighter than adult child-pornography charges, but it still produces a criminal record.

Federal law adds a second layer. Under 18 U.S.C. § 2256, any sexually explicit image of a person under 18 qualifies as child pornography regardless of state consent ages, and federal distribution charges carry a mandatory minimum of five years for a first offense.⁹ Federal prosecutors rarely pursue typical teenage sexting, but the exposure is real, and the risk grows sharply when images spread beyond the original recipient.

How Long Prosecution Remains Possible

Connecticut has effectively eliminated the statute of limitations for sexual offenses against minors. Under Public Act 19-16, there is no time limit on prosecuting any offense involving sexual abuse, sexual exploitation, or sexual assault of a minor, including risk-of-injury charges involving sexual contact with a victim under 16. First-degree sexual assault of a victim under 16, aggravated sexual assault of a minor, and commercial sexual abuse of a minor under 15 also carry no time limit.⁷ Someone who commits a sexual offense against a minor in Connecticut can be charged decades later.

Sex Offender Registration

A conviction for the offenses above triggers Connecticut’s sex offender registration requirement. A first conviction for a criminal offense against a minor victim or a nonviolent sexual offense requires registration for 10 years after release into the community. A second or subsequent conviction in those categories, or any conviction for a sexually violent offense, requires lifetime registration. A conviction under § 53a-70(a)(2) for sexual assault of a child under 13 by someone more than two years older carries lifetime registration even on a first offense.¹⁰

Registrants must provide a name, address, photograph, employer information, and electronic communication identifiers to the Department of Emergency Services and Public Protection. The registry is public, and the obligations follow a person regardless of where they move. Offenders who cross state lines may also face federal registration obligations under SORNA.¹¹

1
Connecticut General Assembly. Connecticut Law on Minors and Marriage and Sexual Relations
2
Justia. Connecticut Code Title 53a – Sexual Assault in the Second Degree: Class C or B Felony
3
FindLaw. Connecticut General Statutes Title 53A Penal Code 53a-73a – Sexual Assault in the Fourth Degree
4
FindLaw. Connecticut General Statutes Title 53A Penal Code 53a-65 – Definitions
5
Connecticut General Assembly. Sexual Assault of a Physically Helpless Person
6
Connecticut General Assembly. Tables on Penalties
7
Connecticut General Assembly. Sexual Assault Statute of Limitations
8
Justia. Connecticut Code Title 53a – 53a-196h
9
U.S. Department of Justice. Citizens Guide to U.S. Federal Law on Child Pornography
10
Connecticut General Assembly. Chapter 969 – Registration of Sexual Offenders
11
eCFR. Part 72 Sex Offender Registration and Notification