First cousin marriage is legal in North Carolina, with a narrow exception for double first cousins.
North Carolina Marriage Statutes
North Carolina General Statute §51-3 explicitly voids marriages between persons “nearer of kin than first cousins” or between double first cousins—those sharing both sets of grandparents (e.g., children of two brothers who married two sisters).
Standard first cousins can obtain a marriage license from any county register of deeds, provided both parties are 18+ (or meet minor requirements), not currently married, and mentally competent.
This aligns with the state’s permissive stance among the 19 U.S. states allowing first-cousin unions without genetic counseling mandates.
Double First Cousins Exception
Double first cousins occur when siblings from each side marry siblings from the other, creating equivalent genetic closeness to half-siblings.
Such marriages are automatically void under §51-3, though consummated ones may become valid post-death or childbirth in rare cases. No criminal penalties apply; the union simply lacks legal recognition.
Practical Requirements
Applicants apply in person with ID and $60 fee; licenses expire after 60 days. No blood tests or waiting periods required. Out-of-state cousin marriages are recognized unless voidable locally.
Local variations are minimal, but verify via ncleg.gov for 2026 updates. Couples should consult family law attorneys for inheritance or custody implications.
SOURCES :
- https://www.montylaw.com/divorce-family-law/marriage-laws/
- https://en.wikipedia.org/wiki/Cousin_marriage_law_in_the_United_States
