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Yes, New Hampshire allows annulment, but only in narrow circumstances defined by RSA Chapter 458. Courts will void a marriage only for bigamy, prohibited family relationships, a minor who married without required consent, or fraud and duress that struck at the core of the union. If your situation fits one of those grounds, the next step is filing a Petition to Annul Marriage (NHJB-2245-F) with the Circuit Court Family Division.
TL;DR:
- Annulment in New Hampshire is limited to specific grounds such as bigamy, prohibited family relationships, underage marriage without consent, or fraud, requiring strong evidence to prove these issues.
- Filing involves submitting a detailed petition to the Circuit Court Family Division, paying a fee, serving the spouse, and providing supporting documents like affidavits or records within strict procedural rules.
- An annulment treats the marriage as never legally valid, but it does not automatically affect property division, support, or erase records; courts retain authority over child custody and support.
- Uncontested annulments can be finalized in two to three months, while contested cases with disputed fraud claims may take six to twelve months or longer due to higher proof requirements.
- Annulment generally does not impact criminal records or other legal issues outside marriage, and early legal counsel can improve the chances of successfully proving grounds like fraud or bigamy.
An annulment declares that a marriage never legally existed. Divorce, by contrast, ends a marriage that was valid at the time it happened. That distinction sounds technical, but it changes how a New Hampshire court treats everything that followed the wedding.
Because annulment treats the marriage as void from the start, the standard divorce framework for dividing property and awarding alimony does not automatically apply. Courts still step in to protect children, though. If the couple had kids, the Family Division retains full authority over custody, visitation, and support regardless of whether the marriage itself was ever valid.
One misconception trips up a lot of people: annulment does not erase your history or scrub any public record of the marriage having happened. It changes the marriage’s legal status going forward, not the fact that a ceremony and a filing occurred. If you’re weighing which path fits your situation, Lydon Law’s guide to divorce in New Hampshire breaks down how the two processes diverge on property and support.
RSA Chapter 458 limits annulment to a short list of grounds, and New Hampshire courts apply them strictly. You cannot annul a marriage simply because it turned out to be a mistake or because your spouse’s behavior disappointed you. The law requires a specific, provable defect in the marriage itself.
Evidence matters enormously here. Marriage certificates from a prior undissolved marriage, birth records establishing a prohibited family relationship, guardianship paperwork, text messages or emails showing deception, and sworn affidavits from people who witnessed the fraud all carry weight. Courts distinguish real fraud from buyer’s remorse: misrepresenting a marital status or a fundamental fact about the relationship qualifies, but a spouse who turns out to have a bad temper or different values generally does not.
Filing an annulment follows a defined sequence, and skipping a step can delay your hearing by weeks.
Pro Tip: Court clerks reject or delay petitions more often over incomplete child and prior-proceeding sections than over the annulment grounds themselves, so fill in every field the official form requests, even ones that seem to not apply to you. Detailed filing guidance is also available directly through New Hampshire’s Family Division.
An annulment resets the marriage’s legal status, but it doesn’t erase every consequence that followed the wedding.
Pro Tip: If custody is part of your situation, review how ongoing parenting orders work independently of your marital status. Lydon Law’s custody guide walks through what New Hampshire courts prioritize.
Timing varies sharply depending on whether your spouse contests the petition. Uncontested annulments, where both parties agree on the facts and the ground, often resolve in two to three months. Contested cases involving disputed fraud claims routinely stretch to six to twelve months or longer, since the court needs time to weigh conflicting evidence.
New Hampshire courts hold petitioners to a higher burden of proof than divorce requires. Judges look for material misrepresentation, not personality flaws discovered after the wedding, and delay can work against you.
Choosing between the two comes down to what you can prove and what’s actually at stake financially and for your children.
Pro Tip: If you’re unsure which ground applies to your situation, or whether your evidence would hold up, an early consultation costs far less than filing the wrong petition and starting over.
The lead attorney has appeared before New Hampshire courts, including the state Supreme Court, and has seen firsthand how strictly Family Division judges apply RSA Chapter 458. The first move in any annulment case is preserving evidence before it disappears: texts, financial records, prior marriage documentation, anything tied to the claimed ground.
From there, the petition gets drafted around the specific statutory ground, with parenting arrangements addressed in parallel when children are involved. Suspected bigamy, fraud, or an underage marriage without consent are the cases where an early consult matters most, because evidence degrades and ratification arguments strengthen with every month you wait.
— Kalie
If your marriage involves bigamy, fraud, a prohibited relationship, or a spouse who married as a minor without consent, you may have a real annulment case, but proving it requires the right documentation filed the right way the first time. The firm serves clients exclusively across New Hampshire, working directly with you rather than passing your case between staff, from your first consultation through filing and any contested hearing.
A first consultation focuses on your specific facts: what evidence you already have, what statutory ground fits, and whether annulment or divorce better protects your finances and your children. The firm helps clients gather the documentation courts expect, from prior marriage records to communications that support a fraud claim, and handles the petition and service requirements.
Visit Lydon Law’s family law page to learn more about the firm’s services, or contact the firm directly to schedule a consultation and take the next concrete step toward resolving your situation.
This article is general information, not a substitute for advice from a qualified lawyer. Consult a qualified legal professional about your own circumstances before acting on anything here.
You file a Petition to Annul Marriage (NHJB-2245-F) with the Circuit Court Family Division in the appropriate county, proving one of the statutory grounds under RSA Chapter 458, then serve your spouse and provide supporting evidence.
Fraud or duress and a prior undissolved marriage (bigamy) are among the grounds New Hampshire courts see most often, though prohibited relationships and underage marriage without consent also qualify under state law.
No. Annulling a marriage and expunging a criminal record are entirely separate legal processes under different statutes; a marital annulment has no effect on criminal history.
New Hampshire law doesn’t set a rigid deadline, but waiting too long or continuing to live with your spouse after discovering the grounds can be treated as ratification, which weakens or defeats your claim.
Uncontested annulments can resolve in two to three months, similar to an uncontested divorce, but contested annulments involving disputed fraud claims often take six to twelve months or longer because of the higher burden of proof.
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