Family Law
FL-100: Petition — Marriage/Domestic Partnership
Current as of July 21, 2026 · tracked for revisionsFillable PDFJudicial Council of California
The FL-100 form is used to start a court case to get married, end a marriage, or dissolve a domestic partnership in California. Someone would need this form if they want to divorce, end a registered domestic partnership, or legally marry through the court system.
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Step-by-step guideDivorce (Dissolution of Marriage) →Filing for divorce in California? Here's the 7-step process, the 6-month waiting period explained, all required forms (FL-100, FL-110, FL-140/142/150, FL-180), and a finalization date calculator.Forms that go with FL-100
FL-110RequiredSummons (Family Law)The Summons (Family Law) must be served on the respondent along with the FL-100 petition to formally notify them of the divorce or separation proceedings.›FL-150Often filed with itIncome and Expense DeclarationThe Income and Expense Declaration is commonly filed to provide the court with each party's financial information, which is needed to address support and property issues.›FL-115Next stepProof of Service of Summons (Family Law)The Proof of Service of Summons is filed to confirm that the respondent was properly served with the petition and summons, completing the service of process step.›
More Family Law forms
FL-105Declaration Under Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA)›FL-117Notice and Acknowledgment of Receipt›FL-120Response — Marriage/Domestic Partnership›FL-130Appearance, Stipulations, and Waivers (Family Law—Uniform Parentage—Custody and Support)›FL-140Declaration of Disclosure›FL-141Declaration Regarding Service of Declaration of Disclosure›