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When Child Support Ends in Iowa

In Iowa, the age of majority is 18, support includes a child between 18 and 19 who is completing high school full time, and since July 1, 2025 a court can no longer order a postsecondary education subsidy.

Last checked . General information, not legal advice.

Iowa at a glance

Support ends at
18
High school extension
Yes, while completing high school, up to age 19
The child must be engaged full time in completing high school graduation or equivalency requirements, expected to finish before 19.
Court can order college support
No
A 2025 law (2025 Acts, ch 57) bars courts from ordering a postsecondary education subsidy in orders entered or pending on or after July 1, 2025.

Sources

Last checked

The rules in Iowa

At what age does child support end in Iowa?

Support ends at in Iowa: 18.

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

High school extension in Iowa: Yes, while completing high school, up to age 19. The child must be engaged full time in completing high school graduation or equivalency requirements, expected to finish before 19.

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

No. Court can order college support in Iowa: no. A 2025 law (2025 Acts, ch 57) bars courts from ordering a postsecondary education subsidy in orders entered or pending on or after July 1, 2025.

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

The rules above come from Iowa Code 598.1(9), Iowa Code 598.21F and Iowa Code 599.1. Each source is linked on this page. We last checked them in October 2026.

Good to know

The postsecondary education subsidy ban applies to a support order, decree or judgment entered or pending on or after July 1, 2025.

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.