Social Security and Marriage Equality Act - Amends title II (Old Age, Survivors and Disability Insurance) (OASDI) of the Social Security Act with respect to the determination of a valid marriage to account for marriages in jurisdictions other than a state.

Authorizes the courts of any state to find that an OASDI benefit applicant and an insured individual were validly married in a jurisdiction other than a state at the time the applicant files a benefit application or, if the insured individual is dead, at the time the individual died.