California Child Custody: Legal vs. Physical & Best Interest

California splits custody into legal (decision-making) and physical (where the child lives), each of which can be joint or sole. Courts decide by the child's best interest, weighing § 3011 factors like health, safety, and abuse history. The court cannot prefer a parent based on sex, gender, or sexual orientation.

This is general information, not legal advice. Talk to a California attorney about how these rules apply to your situation.

California custody comes in two kinds, and judges decide it by one overriding test: the best interest of the child.

Legal vs. physical custody

Legal custody is the right to make decisions about a child’s health, education, and welfare. Physical custody is where the child lives. Each can be joint (shared between the parents) or sole (held by one parent) — and the two are decided separately, so a common arrangement is joint legal custody with one parent having primary physical custody.

The best-interest standard

There’s no fixed formula. Under Fam. Code § 3011, the court weighs factors including the child’s health, safety, and welfare, any history of abuse, the nature and amount of contact with both parents, and habitual substance abuse. Section 3020 sets the public policy: the child’s health, safety, and welfare come first, and while the law favors frequent and continuing contact with both parents, where those goals conflict, safety prevails.

No gender preference

The court cannot consider a parent’s sex, gender identity, gender expression, or sexual orientation (Fam. Code §§ 3011, 3040). There is no presumption favoring mothers or fathers.

How it connects

Custody is often decided alongside child support, and a domestic violence restraining order can address custody too. If parents aren’t married, parentage usually has to be established first.

To get matched with a local California custody attorney, connect with a lawyer.

Frequently asked questions

What's the difference between legal and physical custody?

Legal custody is the right to make decisions about a child's health, education, and welfare. Physical custody is where the child lives. Each can be joint (shared) or sole (one parent), and they're decided separately.

How does a California court decide custody?

By the child's best interest. Fam. Code § 3011 factors include the child's health, safety, and welfare, any history of abuse, the nature and amount of contact with both parents, and habitual substance abuse. Section 3020 makes the child's safety the top priority.

Can a parent be favored because of gender or sexual orientation?

No. The court cannot consider a parent's sex, gender identity, gender expression, or sexual orientation when deciding custody (Fam. Code §§ 3011, 3040). There is no mother-preference or father-preference.

Related guides

California Child Support: The Guideline Formula California sets child support with a statewide uniform guideline formula (Fam. Code § 4055) based on both parents' incomes and timeshare. A major reform (SB 343) became operative September 1, 2024, changing how income is allocated and the low-income adjustment. Use the official Judicial Council calculator and confirm the current statute.

California Divorce: No-Fault Grounds, Residency & Timeline California is a pure no-fault state. Almost every divorce rests on 'irreconcilable differences' (Fam. Code § 2310). You must be a California resident six months and a county resident three months before filing (§ 2320), and a divorce can't be final until at least six months after the respondent is served or appears (§ 2339).

California Domestic Violence Restraining Orders (DVRO) California's Domestic Violence Prevention Act (Fam. Code § 6200 et seq.) lets people in covered relationships seek a restraining order. 'Abuse' is broader than physical injury (§ 6203), and a DVRO can order no-contact, stay-away, move-out, and address custody, support, and firearm restrictions.

California Parentage: Establishing Legal Parents California's Uniform Parentage Act (Fam. Code § 7600 et seq.) governs establishing the legal parent-child relationship. A Voluntary Declaration of Parentage (§ 7570 et seq.) signed by both parents has the force of a judgment. Parentage is the legal predicate for custody, visitation, and child support.

California Property Division: Community Property California is a community property state. Property acquired during the marriage (Fam. Code § 760) is generally divided equally — 50/50 — absent a written agreement (§ 2550). Separate property owned before marriage or received by gift or inheritance (§ 770) isn't divided. This differs from equitable-distribution states.

California Spousal Support: Factors & the 10-Year Rule California has temporary support during a case and long-term support at judgment. Long-term support is set by the Fam. Code § 4320 factors, not a formula. Under § 4336, a marriage of 10+ years is presumed 'of long duration' so the court retains jurisdiction indefinitely — but that's not an automatic right to lifetime support.