Family Law Reference · Civil Annulment Guide
Civil Marriage Annulment vs. Divorce: Grounds, Filing Forms, and Legal Effects
Unlike a divorce (dissolution of marriage)—which terminates a valid legal marriage as of the date of the final decree—a civil annulment is a judicial declaration that a valid marriage never legally existed due to a statutory defect present at the time of the wedding ceremony. Because state courts strongly presume the validity of ceremonial marriages, petitioners seeking an annulment must prove specific statutory grounds rather than irreconcilable differences.
1. Void vs. Voidable Marriages Under State Law
Family courts divide annulment grounds into two legal categories with distinct procedural rules:
• Void Marriages (Ab Initio): A marriage that is unlawful from inception as a matter of public policy—primarily bigamy/polygamy (where one spouse had a living, undivorced prior spouse at the time of the ceremony) or incestuous marriages within prohibited degrees of consanguinity. While technically void without a court order, obtaining a formal Decree of Nullity clears title records, beneficiary designations, and vital statistics registries.
• Voidable Marriages: A marriage that remains legally valid unless and until the aggrieved spouse petitions a court to annul it within a statutory limitations period. Common voidable grounds include fraud going to the essentials of the marital relationship, duress or force, mental incapacity or intoxication at the time of consent, underage marriage without required parental/judicial consent, and incurable physical impotence undisclosed before marriage.
2. Why 'Short Duration' Alone Is Not a Legal Ground for Annulment
One of the most common misconceptions in family law is that any marriage lasting less than 30, 60, or 90 days can be automatically annulled. No U.S. state grants a civil annulment simply because the marriage was brief. If a couple marries in good faith and separates two weeks later without fraud, bigamy, duress, or incapacity, the proper legal remedy is a simplified or uncontested dissolution of marriage—not an annulment.
Moreover, cohabitation after discovering a voidable defect (for example, continuing to live together as spouses after learning of a pre-marital fraud) generally constitutes ratification or condonation, barring an annulment and requiring a standard divorce.
3. Effects on Children, Paternity, Property & Support
• Legitimacy and Custody of Children: Every U.S. jurisdiction has enacted statutes protecting children born of an annulled marriage. Children remain legitimate, and the court applies the exact same 'best interests of the child' standard to establish parenting plans, time-sharing, and child support under state guidelines.
• Property and Spousal Support: Because an annulment treats the marital contract as void, equitable distribution and permanent alimony rules can differ sharply from divorce unless a state's putative-spouse doctrine applies. Unrepresented litigants should compare state court self-help packets or consult a licensed family-law attorney before choosing between an annulment petition and an uncontested divorce.