California Child Custody & Support Laws

By Ronald W. Brilliant, Attorney at Law · Licensed in Idaho, Nevada & California · Last reviewed: September 2026

If you are a parent facing a divorce, a separation, or a custody dispute in California, the most important thing to understand is how a California judge will make decisions about your children. This guide explains the rules California courts apply under the Family Code, in plain English.

The Standard: The Best Interest of the Child

California courts decide custody based on the best interest of the child. Family Code § 3011 requires the court to consider, among other things:

The health, safety, and welfare of the child
Any history of abuse by a parent or anyone seeking custody against the child, the other parent, or certain other household or dating partners
The nature and amount of contact the child has with both parents
Habitual or continual illegal drug use, or habitual or continual abuse of alcohol or prescribed controlled substances, by either parent

California’s public policy is to assure children frequent and continuing contact with both parents, but the child’s health, safety, and welfare come first (Family Code § 3020). The court may not consider a parent’s sex, gender identity, gender expression, or sexual orientation in deciding custody.

Legal Custody and Physical Custody

Legal custody is the right to make decisions about the child’s health, education, and welfare. It can be joint or sole.
Physical custody is where the child lives. It can also be joint or sole, and joint physical custody does not have to mean an exact 50/50 schedule.

When parents agree to joint custody, California presumes that joint custody is in the child’s best interest. When they don’t agree, the court decides based on the child’s best interest.

Mandatory Mediation

In California, parents who disagree about custody or visitation are generally required to attend child custody mediation (sometimes called child custody recommending counseling) before a judge hears the dispute. Preparing well for mediation is one of the most important steps in a California custody case.

Domestic Violence Changes the Analysis

If a court finds that a parent committed domestic violence within the previous five years, Family Code § 3044 creates a rebuttable presumption that awarding that parent sole or joint legal or physical custody is detrimental to the child. The parent must overcome the presumption with evidence, and the policy favoring frequent and continuing contact with both parents cannot be used to rebut it. Courts consider factors such as completion of a batterer’s treatment program and compliance with protective orders.

Does My Child Get to Choose?

Under Family Code § 3042, a child who is 14 or older must be allowed to address the court about custody or visitation if the child wishes, unless the court finds that doing so is not in the child’s best interest and states its reasons. Younger children may be heard when the court finds it appropriate. No child is ever required to state a preference, and courts generally avoid having children speak in front of their parents.

Moving Away With Your Child

California “move-away” cases depend heavily on the existing custody arrangement. A parent with sole physical custody generally has a presumptive right to change the child’s residence, but the court can restrict a move that would harm the child’s rights or welfare. When parents share joint physical custody, the court decides the question based on the child’s best interest. Factors include the child’s age, the relationship with each parent, the distance of the move, and the reasons for it. Get advice before you commit to a move.

Child Support in California

California uses a statewide uniform guideline formula (Family Code § 4055) that considers both parents’ incomes and the percentage of time each parent has with the child. Courts must follow the guideline amount except in limited circumstances.

Changing a Custody Order

Temporary custody orders can generally be changed based on the child’s best interest. Once there is a final custody determination, the parent seeking a change generally must show a significant change of circumstances that makes a modification in the child’s best interest.

How I Can Help

I represent parents throughout California in initial custody cases, mediation, parenting plans, child support, modifications, and move-away disputes. Because custody questions often overlap with property division, business interests, immigration status, or estate planning, I look at the whole picture, not just the custody schedule. Request a consultation to discuss your situation.

This page provides general information about California law and is not legal advice. Reading it does not create an attorney-client relationship. Laws change and every family’s situation is different; consult an attorney about your specific circumstances.