2025 Utah Code
Title 81 - Utah Domestic Relations Code
Chapter 2 - Marriage
Part 4 - Validity of Marriage
Section 402 - Incestuous marriages void.

Universal Citation:
UT Code § 81-2-402 (2025)
Learn more This media-neutral citation is based on the American Association of Law Libraries Universal Citation Guide and is not necessarily the official citation.
Effective 9/1/2024
81-2-402. Incestuous marriages void.
  • (1)The following marriages are incestuous and void from the beginning, regardless of whether the relationship is legally recognized:
    • (a)a marriage between a parent and a child;
    • (b)a marriage between an ancestor and a descendant of any degree;
    • (c)a marriage between siblings of the half or whole blood;
    • (d)a marriage between an uncle and a niece or nephew;
    • (e)a marriage between an aunt and a niece or nephew;
    • (f)except as provided in Subsection (2), a marriage between first cousins; or
    • (g)except as provided in Subsection (2), a marriage between individuals related to each other within and not including the fifth degree of consanguinity computed according to the rules of the civil law.
  • (2)First cousins may marry under the following circumstances:
    • (a)both parties are 65 years old or older; or
    • (b)if both parties are 55 years old or older, upon a finding by the district court, located in the district in which either party resides, that either party is unable to reproduce.


Renumbered and Amended by Chapter 366, 2024 General Session
Disclaimer: These codes may not be the most recent version. Utah may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.