When Child Support Ends in California

In California, child support continues past 18 for an unmarried full-time high school student who is not self-supporting, until the child finishes 12th grade or turns 19, whichever comes first; a court cannot order college support, but parents can agree to it.

Last checked October 2026. General information, not legal advice.

Support ends at: 18; Support continues past 18 only for a full-time high school student, up to 19.
High school extension: Yes, to end of 12th grade or age 19, whichever is first; The child must be unmarried, a full-time high school student (unless excused for a documented medical condition) and not self-supporting.
Court can order college support: No, only by agreement; The statute extends support only for high school; it does not limit a parent's ability to agree to provide additional support.

Sources

Cal. Fam. Code 3901 (FindLaw)

Last checked October 2026

The rules in California

At what age does child support end in California?

Support ends at in California: 18. Support continues past 18 only for a full-time high school student, up to 19.

Does child support continue in California while a child is still in high school?

High school extension in California: Yes, to end of 12th grade or age 19, whichever is first. The child must be unmarried, a full-time high school student (unless excused for a documented medical condition) and not self-supporting.

Can a court in California order a parent to pay support for college?

No, only by agreement. Court can order college support in California: no, only by agreement. The statute extends support only for high school; it does not limit a parent's ability to agree to provide additional support.

Where do the California child support end age laws come from?

The rules above come from Cal. Fam. Code 3901. Each source is linked on this page. We last checked them in October 2026.

What this means in practice

Support does not always stop on its own. Depending on the state and the order, the paying parent may need to ask the court or the child support agency to end or adjust the order, and past-due support remains owed after the end date.

When there is more than one child on an order, the amount may not drop automatically when the oldest child reaches the end age. Reviewing how the order is written, and whether it lists a separate amount per child, helps show what happens next.

Parents can often agree in a divorce or separation agreement to pay for things the law does not require, such as college costs. A written agreement approved by the court can be enforced like an order, so its wording matters and a local family law attorney can review it.

General information, not legal advice. Laws change, and cities can add their own rules, so check the current statute before you rely on it.

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