N.Y. Domestic Relations Law § 7
A marriage is void from the time its nullity is declared by a court of competent jurisdiction if either party thereto: * 1. Is under the age of legal consent, which is eighteen years, provided that such nonage shall not of itself constitute an absolute right to the annulment of such marriage, but such annulment shall be in the discretion of the court which shall take into consideration all the facts and circumstances surrounding such marriage; * NB Effective until August 21, 2021 * 1. Is under the age of legal consent, which is eighteen years; * NB Effective August 21, 2021