When child support ends in Wyoming

The end age, the exceptions, and what to do as support ends.

Checked against official sources: Oct 25, 2026.

Short answer

18 (age of majority); support continues to age 20 while the child attends high school or an equivalent program full time.

Usual end age
18
Latest age in the rule
20
Law
W.S. 14-1-101, 14-2-204(a), 20-2-313, 20-2-316

When support stops in Wyoming

18 (age of majority); support continues to age 20 while the child attends high school or an equivalent program full time

Law: W.S. 14-1-101, 14-2-204(a), 20-2-313, 20-2-316

A parent's duty continues past 18 for a child who is mentally or physically disabled and cannot support themself. Support also ends if the parents marry each other, or the child dies or is emancipated.

When does support end? Check your situation

Wyoming's rule: 18 (age of majority); support continues to age 20 while the child attends high school or an equivalent program full time

Law: W.S. 14-1-101, 14-2-204(a), 20-2-313, 20-2-316

Your own order may set a different end date, for example when the parents agreed to one. Read it.

If your order is from another state

How long support lasts follows the law of the state that made the order, even if you move.

Law: 28 U.S.C. 1738B(h)(2)

A state must enforce another state's child support order. The state that made the order keeps the power to change it while a parent or the child still lives there.

Law: 28 U.S.C. 1738B(a), (d)

Arrears are still owed

Support that was due before it ended is still owed. Each unpaid payment became a judgment on the day it was due, and the agency can keep collecting it.

Law: 42 U.S.C. 666(a)(9)

In nearby states

  • Colorado: 19
  • Montana: 18, or graduation from high school if the child is still enrolled…
  • Utah: 18, or graduation from high school during the child's normal and…
  • Idaho: 18

What to do now in Wyoming

  1. Check the order

    Check what your order says about when support ends.

  2. Know the age

    Wyoming's rule: 18 (age of majority); support continues to age 20 while the child attends high school or an equivalent program full time.

  3. Tell the agency

    The agency can end withholding when support ends: Wyoming Child Support Program, Wyoming Department of Family Services (307-777-6948) · Apply online

  4. Settle past-due support

    Support that was due remains owed.

  5. Talk to legal aid

    Free help: Legal Aid of Wyoming.

Free help in Wyoming

Questions about when support ends in Wyoming

How long does child support last in Wyoming?

18 (age of majority); support continues to age 20 while the child attends high school or an equivalent program full time

Is there support during the last year of high school in Wyoming?

18 (age of majority); support continues to age 20 while the child attends high school or an equivalent program full time

Are there exceptions to the end age in Wyoming?

A parent's duty continues past 18 for a child who is mentally or physically disabled and cannot support themself. Support also ends if the parents marry each other, or the child dies or is emancipated.

Keep reading about Wyoming

Sources

Sources

Last checked: Oct 25, 2026.

Federal sources