The court sets a termination date in the child support order. Child support is presumed to terminate on the last day of the month of the youngest child’s 18th birthday, that is, the youngest child covered by the support order. If the court finds that the youngest child is unlikely to finish high school by age 18, then the support terminates on the last day of the month of anticipated graduation or on the child’s 19th birthday, whichever happens first.

The court may order child support to continue beyond that child’s age of majority, into adulthood. For the court to order such support, the adult-child must have a significant mental or physical disability that prevents him or her from living independently.