Child support in Nevada ends when the child turns 18 — unless the child is still enrolled in high school, in which case it continues until the child graduates or turns 19, whichever comes first. That rule appears in NRS 125C.0045(9) and, for orders under the current guidelines, in NAC 425.160. There is no general obligation in Nevada law to pay support through college.

What exactly does the law say?

Two provisions state the cutoff. NRS 125C.0045(9) says that the obligation for a minor child’s care, education, maintenance, and support created by a custody-and-support order ceases when the child reaches 18 years of age if the child is no longer enrolled in high school — otherwise, when the child reaches 19. The same subsection says the obligation also ceases on the death of the parent who was ordered to pay, unless the parents executed a contract that provides otherwise.

NAC 425.160, part of the child support guideline regulations, applies the same rule to guideline orders: for an order covering one child, the support obligation terminates when the child reaches 18 or, if the child is still in high school, when the child graduates or reaches 19, whichever comes first. The termination is tied to high school enrollment — not to college, trade school, or living at home.

Does support stop automatically when a child ages out?

It depends on how the order is written, and the guideline regulations are specific about this:

  • One child on the order. Under NAC 425.160(1), the obligation terminates when the child hits the statutory cutoff.
  • Several children, with a specific amount allocated to each. Under NAC 425.160(2), the amount for a particular child ends on the first day of the month after that child reaches the cutoff.
  • Several children, one lump amount. This is the trap the regulation addresses. Under NAC 425.160(3), the order does not shrink by itself when the oldest child ages out. A parent who wants the amount changed must file a motion to modify or submit a stipulation, and the new amount is calculated under the guidelines in effect at that time. Unless the parents stipulate otherwise, the modification is effective as of the date the motion was filed — not the date the child turned 18. NAC 425.165 requires every unallocated multi-child order to carry a notice explaining exactly this.

The general calculation rules behind these orders are covered in how child support is calculated in Nevada.

Can support continue past 18 or 19?

Nevada law recognizes a few situations where support runs longer:

  • A child with a handicap. NRS 125B.110 requires a parent to support a child with a handicap beyond the age of majority until the child is no longer handicapped or becomes self-supporting. The handicap must have arisen before the child reached the age of majority. The statute defines “handicap” as the inability to engage in any substantial gainful activity because of a medically determinable physical or mental impairment that is expected to result in death or that has lasted, or is expected to last, at least 12 continuous months. A child who receives public assistance sufficient to meet the child’s needs counts as self-supporting under this section.
  • An agreement between the parents. NRS 125C.0045(9) begins with an exception for parents who signed a contract providing otherwise. Parents can agree — in a written contract the law recognizes — to extend support beyond the statutory end date, and courts can enforce that agreement.

Can support end before 18?

Yes, in limited circumstances:

  • Emancipation. A minor may petition the juvenile court for a decree of emancipation under NRS 129.080. Under NRS 129.130(4), unless the decree says otherwise, the entry of an emancipation decree terminates the support obligation the parents otherwise owed that minor.
  • Adoption. Under NRS 125B.120(2), the legal adoption of a child into another family discharges the natural parents’ support obligation for the period after the adoption.

Custody arrangements can also shift who pays whom while the child is still a minor — see how child custody works in Nevada — but a change in custody changes the order only when a court modifies it.

Do unpaid arrears disappear when support ends?

No. The end of the ongoing obligation does not erase what was already owed. NRS 125B.100 says a parent who is delinquent on support when the child becomes emancipated must keep making the ordered payments until the arrears are paid in full. Reinforcing that, NRS 125B.140 provides that each support payment becomes a judgment by operation of law on the date it is due, and such a judgment may not be retroactively modified. In practical terms, Nevada law treats every missed payment as a debt that survives the child’s 18th or 19th birthday and remains enforceable — through wage withholding, liens, and the other collection tools the statutes give courts and the State’s child support enforcement program.

Why the “motion to modify” timing matters under the statute

Because retroactive modification is prohibited by NRS 125B.140 and modifications generally take effect from the filing date under NAC 425.160(3), Nevada law places the burden of acting on the parent who believes the amount should change. An order that stays unmodified keeps accruing at its stated amount, even if a child has aged out of an unallocated multi-child order. The statute’s design — judgments that vest as they come due — is why timing questions come up so often in support cases that began with a divorce in Nevada or a custody case between unmarried parents, discussed in custody for unmarried parents.