Annulment vs. Divorce: The Basic Differences
Updated 2026-10-06
People sometimes use "annulment" and "divorce" as if they mean the same thing. Legally, they are different. A divorce ends a valid marriage. An annulment is a court ruling that a marriage was not legally valid in the first place. Both are handled by state courts, and each state decides the grounds and the process. This guide explains the basic differences so you can ask the right questions. It cannot tell you whether you qualify for an annulment.
The core difference
- Divorce recognizes that a legal marriage existed and ends it from the date of the judgment forward.
- Annulment declares that the marriage was void or voidable because of a problem that existed when it began. In legal terms, it is treated as if a valid marriage never existed, although the law still deals with what happened during the relationship.
Both are court cases. The USAGov courts page lists family court among the state and territory courts and links to the courts that serve your area.
Void and voidable marriages
Many states divide invalid marriages into two groups:
- Void marriages are invalid from the start, without any court ruling. Common examples are marriages between close relatives or where one person was already married to someone else. A court order may still be useful to make the record clear.
- Voidable marriages are valid until a court annuls them. Common examples involve a problem that one spouse can choose to raise, such as fraud or being underage without the required approval.
Which marriages fall into which group depends on state law.
Common grounds for annulment
Grounds differ by state, but they often include situations like these:
- Bigamy. One spouse was still legally married to someone else.
- Close family relationship. The spouses are related in a way state law prohibits.
- Age. A spouse was under the legal age to marry and did not have the approval state law requires.
- Fraud. One spouse was deceived about something the state treats as essential to the marriage. Courts often apply this narrowly.
- Force or duress. A spouse agreed to marry because of threats or force.
- Lack of capacity. A spouse could not understand or consent to the marriage at the time, for example because of mental incapacity or intoxication.
- Inability to consummate. Some states recognize this ground.
A short marriage is not, by itself, a ground for annulment. Many people with brief marriages still need a divorce.
Time limits
Some annulment grounds must be raised within a certain time, or are lost if the spouses keep living together after learning of the problem. These limits are set by state law and can be short. If you think annulment might apply, talk to a lawyer soon.
Divorce grounds today
Every state offers some form of no-fault divorce, where a spouse does not have to prove wrongdoing. Some states also allow fault-based grounds. Because no-fault divorce is widely available, many people find divorce simpler to prove than annulment. A lawyer can compare the two options in your state.
Property, support, and children
People often assume an annulment means no property division or support. That is not always true. Many states give courts some power to divide property or address support in annulment cases, especially when a spouse believed in good faith that the marriage was valid. The rules differ.
For children, many states provide that children born to parents whose marriage is annulled are still the legal children of both parents. Custody, parenting time, and child support can be decided as in other cases. The USAGov child support page explains that state or tribal child support agencies can help you get, change, or enforce a support order.
Civil and religious annulment are separate
A religious annulment, granted by a religious body, does not end a marriage under state law. A civil annulment or divorce from a court is what changes your legal status. Some people seek both, for different reasons.
Name change
If you used a married name, you may be able to return to a former name as part of the case. The USAGov name change page explains that you can generally change your name back when you file for divorce, and lists agencies to notify, starting with the Social Security Administration. Ask the court or your lawyer how this works in an annulment.
Questions to ask a family lawyer
- Do my facts fit any annulment ground in this state?
- Is there a time limit for that ground, and has it passed?
- What proof would the court expect to see?
- How would property, debts, and support be handled in an annulment here, compared with a divorce?
- How would custody and child support be decided for our children?
- Would a divorce be simpler or faster in my situation?
- What are your fees, and what costs are separate?
Getting help
A family lawyer can review your facts and explain whether annulment, divorce, or another option fits. Browse family law attorneys or read more of our guides on legal topics. The USAGov legal aid page lists free and low-cost legal help programs.
Frequently asked questions
Is annulment faster than divorce?
Not necessarily. An annulment requires proof of a specific ground, which can take time. A divorce may be quicker in some cases.
Can I get an annulment after many years of marriage?
It depends on the ground and state law. Some grounds have time limits, and others may still apply later.
Are children affected by an annulment?
In many states, children of an annulled marriage remain the legal children of both parents, and custody and support can still be ordered.
Does a church annulment count legally?
No. Only a court can end a marriage under state law.
This page is general information, not legal advice. Laws change and every case is different — talk to a licensed attorney about your situation.