Quick answer: When does child support end in Iowa? At 18, with support continuing between 18 and 19 for a child in school full-time to finish high school or an equivalency before 19. Support may include a child of any age dependent because of a disability. Iowa courts no longer order a postsecondary education subsidy.
This Iowa child support end date calculator finds the 18th birthday under Iowa Code 598.1(9) and shows the 19th birthday cap for a high school student. College support is not available: the court shall not order a postsecondary education subsidy under Iowa Code 598.21F. Past-due support stays owed, so check the balance in the Iowa child support arrears calculator.
When does child support end in Iowa? At a glance
| Rule | What Iowa says |
|---|---|
| Basic rule | Support for a minor child runs to 18 |
| High school | Support includes a child between 18 and 19 engaged full-time in completing high school graduation or equivalency requirements in a way reasonably expected to finish before the 19th birthday (Iowa Code 598.1(9)) |
| Disability | Support may include a child of any age dependent because of a physical or mental disability (598.1(9)) |
| College | The court shall not order a postsecondary education subsidy; applies to orders entered or pending on or after July 1, 2025 (598.21F) |
| Past-due support | Stays owed; interest continues (535.3(2)) |
| Withholding | Stays until the court or the agency ends it |
How does the Iowa end date work?
- Age 18 and the high school extension. See the Iowa child support age limit and the high school extension.
- College and disabled adult children. See child support for college and disabled children in Iowa.
- Emancipation and ending the order. See emancipation and whether child support ends automatically in Iowa.
What does this end date calculator check?
You enter the child’s birth date and the calculator returns the 18th birthday and the time left from today. It adds the 19th birthday cap for a high school student, the disability rule and the college rule. It cannot read your order: if the order names a different end date or event, the order controls. To change the amount before it ends, see the Iowa child support modification calculator.
Frequently asked questions
At what age does child support end in Iowa?
At 18, or at the end of high school before the 19th birthday for a child in school full-time between 18 and 19.
Does Iowa child support continue through high school?
Yes, for a child between 18 and 19 who is engaged full-time in completing high school graduation or equivalency requirements in a way expected to finish before age 19.
Can an Iowa court order a parent to pay for college?
No. The court shall not order either party to pay a postsecondary education subsidy under a temporary order or final judgment or decree, for orders entered or pending on or after July 1, 2025.
Can Iowa child support continue for a disabled adult child?
Yes. Support may include a child of any age who is dependent on the parties because of a physical or mental disability.
Does Iowa child support end automatically?
The statute describes the support obligation, but ask the court or the agency to end income withholding and keep proof of the date.