Is there a time limit to get an annulment?

For most annulments, there's generally no hard deadline — but it depends on your state and the specific grounds. An annulment is a court order declaring that a marriage was never legally valid, which is different from a divorce that ends a valid marriage. According to Cornell Law School's Legal Information Institute, the effect is retroactive — the law treats the marriage as if it never happened.

Because annulment erases a marriage rather than ending it, courts generally tie eligibility to why the marriage was flawed, not to how much time has passed. That said, some states do impose deadlines for certain grounds. In California, for example, the Family Code gives someone who married under the age of consent up to 4 years after turning 18 to seek a nullity, and sets different time limits for grounds like fraud or force.

How long can you be married and still get an annulment?

You can be married for years and still qualify — or you can lose the option within weeks — because what matters is your conduct after discovering the issue, not the marriage's length. A widespread misconception is that annulments are only for very short marriages or unconsummated ones. That's generally not how state laws work.

Here's where length does matter in practice: the longer you've been married, the harder it often becomes to prove you didn't know about the problem earlier. If you discovered your spouse lied about something essential and then stayed in the marriage for several more years, a court may find you effectively accepted the marriage.

Void vs. voidable marriages: which one is yours?

Your annulment timeline comes down to one question — was your marriage "void" or "voidable"?

A "void" marriage was never legally valid, because it broke a fundamental legal prohibition. As Cornell's Legal Information Institute explains, common examples are bigamy (one spouse was already married) and incest (close blood relatives). A void marriage is generally treated as invalid from the start, whether or not a court ever rules on it — though getting a formal annulment decree is still worth doing to document it for legal and administrative purposes.

A "voidable" marriage is treated as valid until a court declares otherwise. It has a legal defect — like fraud or coercion — that lets one spouse ask to undo it, but it generally stays valid unless and until someone acts.

Quick self-check — is your marriage likely void or voidable?

This is a starting point, not a legal determination — states define these categories differently, so it's worth confirming yours with a local attorney.

Validating a voidable marriage: what actually closes your window

With a voidable marriage, the clock that matters is your own conduct: you can lose the right to annul by "validating" the marriage. Validation generally happens when, after the defect ends or you discover it, you voluntarily keep living together as a married couple.

California's Family Code shows the pattern: if consent was obtained by fraud, the marriage generally can't be annulled on that ground once the defrauded spouse freely lives with the other "with full knowledge of the facts." The same idea applies to marriages entered under force.

Two details matter here. First, living together as a married couple typically involves a continued spousal relationship, not just sharing an address. Second, it has to be voluntary — if one spouse was coerced into the marriage, cohabitation may not count as validation while that pressure persists, even if the immediate threat is gone.

Can you cancel a marriage within 30 days?

Generally, no — there's no broad "cooling-off" period that lets you cancel a marriage within 30 days simply because you changed your mind. This is one of the most common mix-ups people bring to a family lawyer.

Annulment isn't a refund window. You typically can't undo a valid marriage just because it was quick or you have regrets. To annul, you still need a legal ground — fraud, bigamy, lack of capacity, and so on — no matter how recently you married. If no ground applies, ending the marriage usually means divorce, not annulment.

The confusion often comes from rules in other contexts (like a 3-day right to cancel certain consumer contracts) that don't apply to marriage. A short marriage may make an annulment easier to prove, but the marriage's brevity alone is generally not a ground.

What are the grounds for annulment?

Grounds vary by state, and some recognize additional ones (for example, believing a former spouse was deceased). It's generally important to confirm your state's specific annulment statutes before filing.

Annulment vs. divorce

Both legally end a relationship, but a divorce dissolves a marriage the law recognizes as valid, while an annulment declares the marriage was never valid in the first place — which can affect things like property division and spousal support. For a full side-by-side, see our guide on annulment vs. divorce.

How do you get an annulment?

Getting an annulment looks a lot like filing for divorce, with the added job of proving your legal ground. The process generally runs like this:

A useful filing strategy: some states let you request annulment and divorce together. If the judge finds the marriage isn't annulable, the case can convert to a divorce — which may save time and a second round of court fees.

How much does an annulment cost?

An annulment can cost more or less than a divorce depending on the facts — the biggest cost driver is how hard your grounds are to prove. Court filing fees are generally the same as for divorce, because courts treat them as the same category of case. In California, for example, the fee to file the first paper in a nullity (annulment) case is the same as for a divorce petition — roughly $435 in many counties, with a base statutory fee of $355 plus local fees, per the California Courts. Contested annulments that require witnesses, records, or expert testimony can run higher than a simple uncontested divorce.

An annulment may be the more efficient path when you have clear evidence of a void or voidable marriage, the marriage was short, you share little property, and neither spouse seeks support. A divorce is often more efficient when evidence is thin, the marriage was long, you share significant property, or one spouse wants spousal support.

How annulment rules vary by state

Annulment law is set state by state, so the same facts can lead to different outcomes depending on where you file.

Terminology varies. In Texas, for instance, you "annul" a voidable marriage but ask the court to "declare void" a marriage that was never valid — Texas Law Help walks through both. It helps to know which term and form your state uses.

Property and support after annulment vary. Some states limit or don't allow spousal support or property division after an annulment the way they would after a divorce. In community property states (such as California, Texas, and Arizona) and equitable distribution states (such as Florida, New York, Georgia, and Illinois), how assets are treated after a nullity can differ from a standard divorce.

One thing is generally consistent across states: children of an annulled marriage typically remain legitimate, and issues like custody and child support are still decided.

How Can a Family Law Attorney Help You Through the Annulment Process?

Annulment turns on narrow legal grounds and state-specific rules, so it often helps to get a clear read on your options early. During an initial attorney review, attorneys who work with Marble can look at the specifics of your situation:

By starting from your actual facts, attorneys who work with Marble can help you map a realistic plan rather than a generic guess. Marble works on fixed, upfront pricing — you see the price before you commit, with no hourly billing and no charge for calls, texts, or emails. Get started to understand your options.

Final Thoughts

How long after marriage you can get an annulment isn't really a question about time — it's a question about whether your marriage was void or voidable, and what you did after you learned about the problem. A void marriage can usually be challenged at any point; a voidable one generally stays open until you validate it. Because the grounds are specific and the rules differ by state, a short conversation with a family law attorney is often the fastest way to find out where you stand.

FAQs

Disclaimer: Laws and procedures vary by state and jurisdiction. This article provides general information and should not be considered legal advice for your specific situation. For personalized guidance, consult with an attorney. Attorney advertising.