Annulment papers are the court documents you file to ask a judge to declare that your marriage was never legally valid. The core filing is a Petition for Annulment (called a Complaint for Annulment in some states) submitted along with a Summons to the clerk of court in the county where you or your spouse lives. Before you file, you need a recognized legal ground, you need to be inside your state’s deadline, and you need to understand that erasing the marriage carries tax, property, and benefits consequences that divorce does not.
When Annulment Is Available
Courts do not annul marriages because they went badly. An annulment requires proof that the marriage was defective from the moment of the ceremony. Family law splits defective marriages into two types, and the type affects whether filing is optional or necessary.
A void marriage was never legal in the first place. Bigamy and incest are the standard examples. These marriages are invalid as a matter of law, but most courts still want you to file annulment papers so there is a formal order removing the marriage from public records. Without that order, the marriage can keep appearing valid on paper.
A voidable marriage looks valid until someone challenges it. Fraud, duress, mental incapacity, and underage marriage without the required consent all fit here. A voidable marriage stays legally recognized until a court annuls it. If no one files, it stands. This is the situation where annulment papers are not optional.
Grounds You Must State in the Petition
Every petition has to identify a specific legal defect. The grounds recognized across most states are:
- Fraud or misrepresentation about something fundamental to the marriage, such as concealing a prior marriage, a serious criminal record, an inability to have children, or a sexually transmitted disease. Lying about income, personality, or drinking habits generally does not qualify.
- Bigamy, meaning one spouse was already legally married at the time of the ceremony.
- Incest, meaning the spouses are related by blood more closely than state law allows. All states bar parent-child, grandparent-grandchild, and sibling marriages; many extend the bar to first cousins.
- Duress or coercion, meaning one spouse was forced or threatened into the marriage.
- Mental incapacity at the time of the ceremony, including severe intoxication.
- Underage marriage without the required parental or judicial approval.
- Permanent inability to consummate the marriage, where the other spouse did not know before the wedding.
- A sham or mock marriage entered with no genuine intent, such as a marriage solely for immigration fraud.
The fraud ground is where most would-be petitioners stumble. Courts have been consistent: discovering your spouse is dishonest about money, lazy, or has a drinking problem is grounds for divorce, not annulment. The misrepresentation has to go to the essentials of marriage, meaning something you would not have consented to had you known.
Deadlines Vary by State and Ground
Every state imposes time limits, and missing yours leaves divorce as your only option. Void-marriage grounds like bigamy and incest typically have no deadline, since the marriage was never valid. Voidable grounds almost always have a window that closes. Fraud-based annulments commonly allow two to four years, with some states starting the clock on the wedding date and others starting it when you discovered the fraud. Underage-marriage windows are often shorter, sometimes measured in months. Duress and mental-incapacity deadlines vary widely.
There is a second deadline that is not written on the calendar. If you kept living with your spouse after learning about the defect, a court can treat that as ratification, meaning you accepted the marriage despite the flaw. The safer course is to file as soon as you know you have grounds.
Preparing the Petition
The Petition for Annulment is the core document. Alongside it you prepare a Summons, which is the formal notice telling your spouse a legal action has been filed. Both forms are usually available through the clerk of court’s office or the state judiciary’s website, and many states offer fillable PDFs that walk you through each field.
The petition requires identifying information about both spouses and the marriage. You need the full legal names of both parties as they appear on the marriage license, the date of the ceremony, and the location where the license was issued. These details let the court identify the exact marriage record you want invalidated.
The grounds section is where cases are won or lost. You have to name the specific defect and lay out the facts supporting it. For a fraud claim, that means stating what was misrepresented, when you discovered the truth, and why the misrepresentation went to the essentials of the marriage. Vague statements like “my spouse lied to me” will not carry a petition.
The petition closes with a Prayer for Relief, where you formally state what you are asking the court to do. At minimum, you request a declaration that the marriage is void. You can also request additional relief in the same filing, such as restoration of a former name.
Filing With the Court
You submit the completed paperwork to the clerk of court in the appropriate jurisdiction, usually the county where you or your spouse lives. Bring the signed original and several copies. Many courts also accept electronic filing through an online portal.
Filing fees generally fall between $100 and $450, depending on the jurisdiction. If you cannot afford the fee, you can file a fee waiver application; courts grant waivers based on income and financial hardship.
After the clerk verifies the paperwork and takes payment, the documents receive an official date stamp and a case number. That case number has to appear on every future filing in the case. The date stamp establishes when your case entered the court system, which starts the clock on later steps like service.
Serving Your Spouse
The court cannot act on your petition until your spouse has been formally notified. This is called service of process, and you cannot do it yourself. The person who delivers the papers must be at least 18 and not a party to the case. That can be a professional process server, a sheriff’s deputy, or any neutral adult. Professional servers typically charge $50 to $150.
Whoever delivers the papers then completes an affidavit of service (or proof of service) documenting when, where, and how the documents were delivered. That affidavit gets filed with the clerk to confirm the notification requirement has been met. Deadlines for completing service vary, but 30 to 120 days after filing is the common range.
If your spouse cannot be found despite reasonable effort, the court may permit alternative service. The most common form is service by publication, placing a legal notice in a newspaper where your spouse is believed to live. Courts treat publication as a last resort and require you to show you made genuine attempts to locate your spouse first.
After Service: Default, Contested, or Uncontested
Once served, your spouse has a set number of days to file a written response. If that window passes with no response, you can ask the court for a default, which lets the case proceed on your petition alone. A default annulment still requires a judge to review the grounds and evidence before signing an order.
If your spouse responds and contests the annulment, the case moves to a hearing or trial. Annulments carry a higher burden of proof than divorces. You will need to present evidence supporting your grounds, which may include documents, photographs, financial records, or witness testimony. Your spouse can cross-examine your witnesses and present their own evidence. Fraud cases are often the hardest, because they frequently come down to one person’s word against another’s.
If both spouses agree the marriage should be annulled, the process is much simpler. Many courts handle uncontested annulments on the paperwork alone or through a brief hearing of only a few minutes.
The Final Decree
A judge reviews the file and decides whether the grounds are satisfied. If they are, the judge signs a Final Decree of Annulment (sometimes called a Judgment of Annulment). Once entered into the court’s records, the marriage is legally treated as though it never happened.
Keep certified copies. You will need them to update identification, change your name if you requested that relief, and prove your marital status in future legal or financial matters. Most courts charge a small fee per certified copy.
Property, Children, and Support
Because annulment treats the marriage as if it never existed, property and support sit in a gray area that divorce handles more cleanly. In theory there is no marital property to divide. In practice, courts use workarounds to prevent unfair outcomes.
The main one is the putative spouse doctrine, recognized in many states. If you entered the marriage in good faith, genuinely believing it was valid, you can be treated as a putative spouse and receive property rights similar to those in a divorce. The doctrine exists to protect people who were deceived, such as someone who did not know their spouse was already married. Putative spouse status stops accruing once you learn the marriage is invalid, so the timing of your discovery matters.
Children born during an annulled marriage are considered legitimate in every state. Annulment does not change the legal relationship between a child and either parent. Courts retain full authority to order custody, visitation, and child support in annulment cases, and the final decree will usually address these issues.
Spousal support is less predictable. Some states allow temporary support in annulment cases; others refuse, reasoning that no valid marriage ever existed to create a support obligation. If ongoing support matters to you, check your state’s rule before filing.
Tax Consequences
This is the part that catches people off guard. Because the annulment declares the marriage never existed, the IRS requires you to amend your returns for every year the annulment affects. You change your filing status from married filing jointly (or married filing separately) to single, or head of household if you qualify, using Form 1040-X.1Internal Revenue Service. Publication 504 (2025), Divorced or Separated Individuals
The IRS limits how far back you can amend: generally three years from the date you filed the original return, or two years from the date you paid the tax, whichever is later. Years outside that window stay as filed. Amending can change what you owe or what you were refunded, sometimes significantly, especially if you claimed credits or deductions that depended on marital status. A tax professional is worth consulting before you file the amendments.2Internal Revenue Service. Filing Taxes After Divorce or Separation
Effect on Benefits
An annulment cuts off benefits tied to marital status. Health insurance through a spouse’s employer plan typically ends with the annulment, just as it would with a divorce. You may qualify for continuation coverage under COBRA or a state equivalent, but that coverage is temporary and you pay the full premium.
Social Security spousal and survivor benefits are also affected. Because the marriage legally never existed, you generally cannot claim benefits based on your former spouse’s earnings record. If the marriage lasted long enough that you would have qualified for spousal benefits in a divorce, annulment eliminates that eligibility. For someone who gave up career years during the marriage, this loss can be substantial, and it is one of the strongest practical reasons to weigh divorce against annulment even when annulment grounds exist.
Civil Annulment and Religious Annulment Are Separate
A religious annulment granted by a church, diocese, or religious tribunal has no effect on your legal status. It does not change property rights, custody, support, or any civil obligation. If you obtain only a religious annulment without filing civil annulment papers or a divorce, you remain legally married. The reverse is also true: a civil annulment does not satisfy religious requirements for those whose faith requires its own process before remarriage. If both matter to you, pursue them separately.