California family law is codified in the California Family Code. The state presumes that joint custody is in the best interest of the child and uses detailed guideline calculations for support.
Family law in California is set out mainly in the California Family Code. The legislature writes the substantive rules, including how custody is decided, how child support is set, and the grounds for divorce. The California courts add the procedural rules that control filing, service, and hearings, and published appellate decisions explain how those statutes are applied. California sets child support with the Income Shares (statewide formula) model under Cal. Fam. Code §§ 4050-4076.
Family cases in California start at the trial-court level, where a judge, and in many places a magistrate or commissioner, hears filings, temporary motions, and trials under the California Family Code. Child support brought through the state program is handled by the California Department of Child Support Services (DCSS). Final orders can be appealed, but the appeals court gives strong weight to the trial judge's findings of fact.
These mechanics apply to most California family cases no matter the subject. Getting them right is the difference between a case that moves forward and one that stalls. Where you file: California family cases are filed with the court that covers where a parent or the child lives. The California courts publish the forms and an e-filing portal online (see the official sources below). Cost to file: Dissolution filing fee: ~$435-$450. If money is tight, ask the clerk for a fee waiver before you file. Financial disclosure: California requires both parents to file a sworn financial statement of income, expenses, assets, and debts. The court cannot set support or divide property without it, and a missing or wrong one is a common reason a case is delayed. Mediation and ADR: Many California courts ask parents to try mediation before a contested custody hearing. What is said in mediation is usually confidential and kept out of the trial. Child support basics: California bases support on net income using the Income Shares (statewide formula) model. A shared-parenting formula lowers the amount as overnights even out between the homes. Changing an order later: Final orders bind both parents once entered. For child support, California's general trigger to revisit the amount is: any material change of circumstances, California does not require a fixed percentage threshold, but a meaningful change in income, custodial time, or expenses is required.
Common words you will see in California family court filings and orders. Definitions are general and can vary by context. Legal and physical custody: The term California uses for the legal and day-to-day care of a child after parents separate. The court decides it under the best interests of the child standard. Income Shares (statewide formula): Both parents' incomes are combined, and the guideline amount is split between them in proportion to what each one earns. California Department of Child Support Services (DCSS): The California state child support program (its Title IV-D agency) that helps establish, collect, and enforce support, often at low or no cost. Financial affidavit / statement: A sworn list of your income, expenses, assets, and debts that the court needs before it can set support or divide property. Petitioner / Respondent: The parent who files the case is the petitioner; the parent who is served is the respondent. Modification: A request to change an existing order after a real change in circumstances. California's child support trigger: any material change of circumstances, California does not require a fixed percentage threshold, but a meaningful change in income, custodial time, or expenses is required. Contempt: A finding that a parent willfully broke a court order. Remedies can include make-up parenting time, fines, fees, and in serious cases jail. Income withholding: Automatic deduction of child support from the paying parent's wages, usually set up together with the support order.
California courts hold parents without a lawyer to the same rules as attorneys, but real free help exists. The points below come up again and again.
Use the official California court forms and self-help pages, not random templates from the internet, the clerk will reject an out-of-date or wrong form.
California lists a self-help center and a forms library online (linked in the official sources below); start there before you pay anyone.
Budget for the California filing fee and ask the court for a fee waiver up front if money is tight, the clerk has the form.
File your financial statement on time and make it accurate, many delays and contempt findings trace back to a missing or false one.
Email, texts, and social media posts are routinely used as evidence, assume anything you write could end up in front of the judge.
An agreement you put on the record in court is hard to undo later, so do not agree to terms you do not fully understand.
Check any fee, form, statute, or deadline against the current official version before you rely on it. These are the primary California sources. California Judicial Branch (courts.ca.gov): The official California courts website, with the court directory, rules of procedure, and e-filing. California self-help center (courts.ca.gov): Plain-language help, instructions, and forms for people handling a case without a lawyer. California family law forms (courts.ca.gov): The official forms library for divorce, custody, support, and fee waivers. California e-filing portal (selfhelp.courts.ca.gov): Where you file and track your documents online if your court accepts e-filing. California Family Code (leginfo.legislature.ca.gov): The statute that governs divorce, custody, and child support in California. California Department of Child Support Services (DCSS) (childsupport.ca.gov): The state child support agency that establishes, collects, and enforces support orders.
California courts apply state-specific statutes alongside several federal frameworks: the Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA) for interstate custody, the Uniform Interstate Family Support Act (UIFSA) for cross-state child support enforcement, the Servicemembers Civil Relief Act (SCRA) for active-duty parents, and the Indian Child Welfare Act (ICWA) where applicable. Procedural details, including filing fees, mediation requirements, parenting class providers, and standing administrative orders, are set at the county level and change frequently.
Yes. California Family Code § 3080 creates a presumption that joint custody is in the child's best interest when both parents agree.
California uses a complex algebraic formula (the 'guideline formula') that factors in income, timeshare percentage, tax filing status, and deductions.
DCSS (Department of Child Support Services) handles government-initiated child support enforcement and establishment cases.
Under Cal. Fam. Code § 2320, one spouse must have lived in California for six months and in the filing county for three months before filing.
Yes. California is one of nine community property states. Property acquired during marriage is generally split 50/50 at divorce under Cal. Fam. Code § 2550.