When Does Child Support End in Indiana?

Last reviewed: March 2026

Child support age limit in Indiana

In Indiana, the age of majority for child support purposes is 19. Child support obligations generally continue until the child reaches this age. Indiana sets the age of majority at 19, which is higher than the majority of states. Support may also continue if the child is still in high school at age 19.

Child support may continue beyond age 19 in certain circumstances, such as when the child has a physical or mental disability that prevents self-support.

How Indiana calculates child support

Indiana uses the Income Shares model for calculating child support. Under the Income Shares model, both parents' incomes are combined and the child support obligation is divided proportionally based on each parent's share of the combined income. The idea is that the child should receive the same proportion of parental income as they would if the parents lived together.

Guidelines consider combined weekly income and parenting time credits.

Can child support be modified in Indiana?

Yes. In Indiana, child support orders can generally be modified when there is a significant change in circumstances. Common reasons include:

• A substantial change in either parent's income (job loss, raise, new employment)
• A change in the custody or visitation arrangement
• A change in the child's needs (medical costs, educational expenses)
• A change in the cost of health insurance or childcare

Is child support taxable in Indiana?

No. Child support payments are not taxable income for the receiving parent and not tax-deductible for the paying parent. This applies under both federal tax law and Indiana state law.