How support is calculated, modified, and enforced — from guidelines to college expenses.
Arizona child support averages $430-$1,365/month per child. Learn the Income Shares Model formula, 2026 guidelines, and modification rules under A.R.S. § 25-320.
Child support is not taxable in Arizona. Learn 2026 federal tax rules, dependency exemption allocation under ARS § 25-320, and how to claim children after divorce.
Child support in Arizona ends at 18 or 19 if still in high school. Learn termination rules under ARS § 25-501, emancipation, disability exceptions, and how to file.
Use Arizona's child support calculator to estimate payments. Learn the income shares model, parenting time adjustments, and the 10% older child increase under A.R.S. § 25-320.