In Michigan, child support does not always automatically stop at 18. The current support obligation generally ends on the child’s 18th birthday, but it continues until high school graduation or age 19½ (whichever comes first) if the child is still enrolled full-time, and the case stays open as long as any arrears remain unpaid.1Michigan Legislature. MCL Section 552.605b – Support and Parenting Time Enforcement Act (Excerpt)
What Actually Happens at Age 18
Michigan’s age of majority is 18. Under MCL 722.52, a person 18 or older is a legal adult for all purposes, and only a short list of statutes lets a court order support past that age.2Michigan Legislature. MCL Section 722.52 – Adult of Legal Age; Support Payments for Person 18 Years of Age or Older If the child has already finished high school when they turn 18, the current support obligation ends by its own terms on the date the order specifies.
The word “automatic” is a little misleading. The Friend of the Court, which administers support orders for the family division of the circuit court, still reviews the case before closing it. Notice goes to both parents laying out the termination date and any condition that could extend the order. If arrears exist, the case stays open and payments continue until the balance is cleared.3Michigan Department of Health and Human Services. Michigan IV-D Child Support Manual Section 3.50 – Case Closure Don’t assume the 18th birthday was the last payment.
The High School Extension to Age 19½
The main way support continues past 18 is the high school extension. A court may order support to continue while the child:
- Attends high school full-time,
- Lives full-time with the parent receiving support (or in an institution), and
- Has a reasonable expectation of earning enough credits to graduate.1Michigan Legislature. MCL Section 552.605b – Support and Parenting Time Enforcement Act (Excerpt)
Support under this extension cannot last past the child’s 19th birthday plus six months, no matter when graduation actually happens. The statute also requires the order to specify a termination date as the last day of a particular month, so the obligation does not simply drift until graduation day.
The extension does not happen on its own. Either parent has to file a complaint or motion asking for it, and the deadline to do so is before the child turns 19½. Miss that deadline and the court loses jurisdiction to extend. The statute refers to “high school” without limiting it to public schools, so accredited programs qualify.
Can Support End Before 18?
Yes, but only in narrow situations. Michigan recognizes “emancipation by operation of law,” which happens automatically without any filing. The two triggers relevant here are turning 18 and entering active duty in the U.S. Armed Forces.4Michigan Legislature. MCL Section 722.4 – Emancipation by Operation of Law When a minor enlists and reports for active duty, the parents’ support obligation ends for the duration of service.5Michigan Legislature. MCL Section 722.3 – Status of Minors and Child Support
A minor can also petition the family court for an emancipation order, but this catches many people off guard: court-ordered emancipation does not release parents from child support. The statute expressly says parents of a court-emancipated minor remain jointly and severally obligated to support that child.6Michigan Legislature. MCL Section 722.4e – Status of Minors and Child Support Only emancipation by operation of law, such as military service, actually cuts off the duty to pay.
What Michigan Courts Cannot Order
Two common assumptions about extended support are wrong in Michigan, and each one has caused parents to either overpay or plan around money that will never come.
No Court-Ordered College Support
Michigan courts have no authority to order a parent to pay child support while a child attends college. The only post-18 extension the statute allows is for high school completion, capped at 19½.1Michigan Legislature. MCL Section 552.605b – Support and Parenting Time Enforcement Act (Excerpt) Parents who want to share college costs have to negotiate that into their divorce judgment or settlement agreement. A court can enforce a college provision the parents voluntarily agreed to, but it cannot impose one over a parent’s objection.
No Post-Majority Disability Support
Michigan is one of the few states that does not authorize courts to order ongoing child support for an adult child with a disability. Some states allow indefinite support in that situation; Michigan does not. The same age limits apply regardless of the child’s disability. Families in this situation generally look to Supplemental Security Income, Medicaid, or ABLE accounts rather than the child support system.
Orders Covering More Than One Child
When a support order covers multiple children, the oldest aging out does not necessarily reduce the payer’s monthly payment. Under the 2025 Michigan Child Support Formula Manual, if arrears exist when a current support obligation terminates, the total payment amount does not automatically drop. The portion previously going toward current support for the now-adult child is redirected to pay down the arrearage.7Michigan Courts. 2025 Michigan Child Support Formula Manual – Section 4.03(B)(8)
If the payer has no arrears, the support amount should be recalculated to reflect one fewer child, but that doesn’t happen on its own either. The payer usually needs to file a motion for modification, or the Friend of the Court may open a review. Until a new order is entered, the existing order controls. Cutting the payment without a modified order just creates a new arrears balance.
Arrears Do Not Vanish at 18
Unpaid support survives the child’s 18th birthday. The case stays open, enforcement tools stay available, and, as noted above, the paying parent’s total monthly payment may not change because the freed-up current-support amount rolls into arrearage repayment.7Michigan Courts. 2025 Michigan Child Support Formula Manual – Section 4.03(B)(8)
Michigan doesn’t charge traditional interest on overdue support. It applies a surcharge to the arrearage balance instead.8Michigan Department of Health and Human Services. Michigan IV-D Child Support Manual Section 5.75 – Surcharge The Friend of the Court is required to report any parent whose arrears exceed two months to credit reporting agencies. Income withholding, tax refund interception, property liens, and license suspensions all remain on the table for as long as a balance is owed, and failing to pay court-ordered support is a felony in Michigan punishable by up to four years in prison, a fine of up to $2,000, or both.9Michigan Legislature. MCL Section 750.165 – Failure to Support Spouse or Child as Required by Court Order
Courts can restructure a repayment plan on motion, but they cannot forgive the debt: the arrears belong to the child, not the state.
Health Insurance Runs on a Separate Clock
Cash support and health coverage are governed by different rules. Many Michigan divorce judgments include a Qualified Medical Child Support Order or a National Medical Support Notice that requires a parent to carry the child on employer-sponsored insurance. That obligation follows the terms of the court order, not the age-18 cutoff for cash support.10Michigan Department of Health and Human Services. Michigan IV-D Child Support Manual Section 6.06 – Medical Support
Separately, the Affordable Care Act requires health plans offering dependent coverage to keep adult children eligible until age 26, whether or not the child lives with the parent, is a tax dependent, or is a student.11Centers for Medicare & Medicaid Services. Young Adults and The Affordable Care Act: Protecting Young Adults and Eliminating Burdens on Families and Businesses A parent whose judgment requires maintaining coverage may need to keep the child on the plan well past 18. When a Michigan support case closes, the system does not automatically send the employer notice that would drop the child from coverage, precisely to avoid a gap when the court order still requires it.
Confirming Your Termination Date
The Friend of the Court office in the county where the order was entered is the authoritative source for the termination date. Contact that office and ask for written confirmation. The date should appear in the original support order, but orders entered before 1990 may use older language, and a high school extension can move the date.
If you’re the paying parent, keep paying in full until you have written confirmation that the obligation has ended. Stopping a month early creates an arrears balance with its own enforcement consequences. If you’re the receiving parent and support should continue past 18 because the child is still in high school, file the complaint or motion before the child turns 19½.1Michigan Legislature. MCL Section 552.605b – Support and Parenting Time Enforcement Act (Excerpt) That deadline is absolute.
Both parents should keep records of every payment, every Friend of the Court communication, and school enrollment documents. The gap between what one parent thinks was paid and what the Friend of the Court’s ledger shows is one of the most common post-termination disputes, and the parent with documentation wins.