California child support commonly ends when a child reaches the applicable age, but age 18 is not the complete rule. School attendance, self-support, emancipation, disability, death, and the specific language of the existing order can affect the termination date.

Support May Continue After Age 18

Support ordinarily continues for an unmarried 18-year-old who is a full-time high school student and is not self-supporting. It generally ends when the child graduates or reaches age 19, whichever occurs first.

A child under 19 who is medically excused from full-time high school attendance may continue to qualify if the child is not self-supporting.

Emancipation Can End the Duty Earlier

Statutory emancipation may occur when a minor enters a valid marriage or domestic partnership, begins active military duty, or receives a court declaration of emancipation.

Other claims that a child has become independent require careful review. When an order does not identify a claimed form of emancipation as a terminating event, the paying parent may need to seek modification instead of stopping payments unilaterally.

Some Obligations Continue Into Adulthood

Parents may agree to support a child beyond the normal termination date, including through college. Support may also continue for an adult child who is incapacitated from earning a living and lacks sufficient means.

The scope and duration of any postmajority obligation depend on the reason for continued support and the language of the order or agreement.

Arrears Do Not Disappear at Termination

Ending current support does not erase unpaid installments or accrued interest. Wage withholding may also require adjustment after the ongoing obligation ends.

A California child support attorney can determine the correct termination date, address an adult disabled child, calculate arrears, and obtain any necessary order ending withholding. Until the obligation terminates under the governing order and law—or is otherwise properly modified—the ordered payments should continue.