Annulment in California: Grounds, Process, and How It’s Different From Divorce (2026 Guide)

Not every marriage that ends needs to end in divorce. In some cases, California law allows a marriage to be treated as if it never legally existed at all — a process most people call an annulment, which California courts officially term a Nullity of Marriage. If you are wondering whether your marriage qualifies, or whether annulment is even the right path compared to divorce, the distinction matters both legally and financially.

At Woodman Garcia-Sepulveda Law, we help San Mateo County families understand which option truly fits their situation, because annulment is a much narrower legal remedy than most people expect, and pursuing the wrong one can cost time, money, and peace of mind.

What Is an Annulment in California?

An annulment declares that a marriage was never legally valid in the first place. Unlike a divorce, which ends a marriage that was valid when it began, an annulment treats the marriage as though it never existed under the law.

California courts do not actually use the word “annulment” on official paperwork. Instead, the applicable Judicial Council form (FL-705) and California Family Code §2210–§2212 refer to this process as a Nullity of Marriage. The outcome is the same as what most people mean by “annulment” — the terms are interchangeable in everyday conversation, but knowing the official term helps when filling out court forms or researching California law.

Annulment is far less common than divorce because the legal grounds are narrow and specific. Simply having a short marriage, feeling regret, or discovering incompatibility does not qualify.

Annulment vs. Divorce in California: Key Differences

Because an annulment and a divorce lead to very different legal outcomes, understanding how they compare can help you determine which path actually applies to your situation.

Annulment (Nullity of Marriage)

• Treats the marriage as if it never legally existed
• Requires proving specific legal grounds
• No mandatory waiting period, but some grounds have filing deadlines
• Property division can follow different rules than divorce
• Rare and narrowly available

Divorce

• Ends a marriage that was legally valid
• California is a no-fault state — no grounds required
• Six-month minimum waiting period before finalization
• Community property is divided under standard California rules
• Available to any legally married couple

Legal Grounds for Annulment in California

California law separates annulment grounds into two categories, and the difference between them matters.

Void Marriages are never legally valid, regardless of intent or circumstances, and generally have no filing deadline:

• Bigamy — one spouse was already legally married to someone else
• Incest — the spouses are related within degrees prohibited under California law

Voidable Marriages are treated as valid unless a spouse successfully petitions the court to annul them, and most carry a limited window to file:

• Fraud — one spouse was deceived about something central to the marriage, such as a concealed existing marriage or a fraudulent motive for marrying
• Force — one spouse was pressured or threatened into marrying
• Underage marriage — a spouse married without the legally required parental or court consent
• Unsound mind — a spouse lacked the mental capacity to understand the nature of marriage at the time
• Physical incapacity — a spouse was physically incapable of consummating the marriage, the condition was unknown to the other spouse, and it remains incurable

Best Practice: Because fraud and force claims generally must be raised within a limited time after discovery, do not wait to speak with an attorney if you believe one of these grounds applies to your marriage.

How to Get an Annulment in California: The Process

An annulment follows a different filing process than a standard divorce:

• File a Petition for Nullity of Marriage (Judicial Council Forms FL-100 and FL-105) with the California Superior Court
• Serve your spouse with the petition through proper legal service
• Your spouse may respond, agree, or contest the grounds you have stated
• Gather evidence supporting your specific ground, such as documents, records, or witness testimony
• Attend a hearing if the case is contested; uncontested cases can sometimes be resolved without one
• Receive a Judgment of Nullity from the court

Contested annulments, especially those involving fraud or duress, can take significantly longer than uncontested ones, since the burden of proof falls on the spouse requesting the annulment.

How Long Does It Take?

Uncontested cases with clear documentation, such as proof of an existing prior marriage, can resolve in a matter of months. Contested cases involving fraud or capacity disputes typically take considerably longer, since the court requires convincing evidence before ruling that a marriage never legally existed.

How Much Does It Cost?

Costs depend heavily on whether the case is contested. Straightforward cases with clear evidence tend to cost less than proving fraud or incapacity, which often requires more attorney time, discovery, and possibly expert testimony, in addition to court filing fees.

Do You Need an Annulment Attorney in California?

Annulment cases are generally harder to win without legal representation than a typical divorce, because the burden of proof sits with the spouse requesting it, and judges scrutinize these petitions carefully given how significant a ruling that “the marriage never existed” really is.

If you live in Redwood City, San Mateo County, or elsewhere in the Bay Area and believe your marriage may qualify for annulment, or you are simply unsure whether annulment or divorce is the right path, Woodman Garcia-Sepulveda offers consultations to walk through your specific situation, including for Spanish-speaking clients.

Frequently Asked Questions

Deciding between an annulment and a divorce is not always straightforward, and the right choice depends on the specific facts of your marriage. If you believe your marriage may qualify for a Nullity of Marriage, or you simply want to understand your options, the experienced attorneys at Woodman Garcia-Sepulveda Law can help you evaluate your situation and choose the path that best protects your interests. Contact the firm today to schedule a consultation.