Tax Rules for Child Support

Child support payments aren't taxable income and aren't tax-deductible under federal law. If you receive child support, you don't report it as income. If you pay it, you can't deduct it.

Beyond income tax rules, child support intersects with taxes in other important ways, including who can claim children as dependents and whether the IRS can intercept a tax refund to collect overdue payments. Here's what divorcing or separated parents need to know.

How Child Support Works (and Who Pays It)

All parents, whether married or not, have a legal duty to support their children. When parents are divorced or separated, the court will order one of them—usually the parent who doesn't have the kids most of the time—to pay child support to the custodial parent. The law presumes that custodial parents meet their share of the support obligation by paying directly for their children's daily expenses, such as housing and food, rather than making support payments to the other parent.

All U.S. states have guidelines for calculating child support, as well as rules for when judges may allow an amount of support that's higher or lower than the standard calculation.

Is Child Support Taxable Income?

No. The IRS doesn't treat child support as taxable income. So if you receive child support payments, you don't need to include them as income on your federal tax returns.

Is Child Support Tax Deductible?

No. Just as child support payments aren't taxable, they also aren't deductible. So if you're the paying parent, you may not deduct your child support payments from income on your federal tax returns.

However, you might be eligible for other child-related tax benefits if you're allowed to claim your children as dependents. Generally, parents may claim their children as dependents only if the kids live with them for more than half the year. But under special IRS rules for divorced or separated parents, custodial parents may release their right to claim their children as dependents. For instance, they might agree to do this as part of negotiations for an overall divorce settlement agreement. Or when parents have shared custody under their parenting plan, they may agree to trade off years when each of them will claim their kids as dependents.

Is Interest on Late Child Support Arrears Taxable?

If your ex hasn't been paying child support on time, most states charge interest on overdue payments (usually called "arrears"). Interest is taxable under IRS rules. (I.R.C. § 61(a)(4) (2026).)

This means if you receive payments for interest on child support arrears, you must report the interest as income on your federal tax return—but not the late child support itself.

Tax Refunds Interception for Unpaid Child Support

Child support agencies in all U.S. states have several ways to enforce child support orders when parents aren't paying on time (or at all). When a parent falls behind on child support, the child support agency can refer the case to the Treasury Offset Program. The minimum arrears amount required for referral is $500 (or $150 if the parent who receives support is on public assistance). Once referred, the IRS will intercept all or part of the delinquent parent's federal tax refund and apply the money to the support arrears.

If the paying parent files a joint tax return with a new spouse, the new spouse's share of the refund may also be intercepted. The new spouse can file IRS Form 8379 (Injured Spouse Allocation) to recover their portion.

States that have income tax may also offset refunds for those taxes.

If you're having trouble collecting child support, contact your local child support agency for help.

Getting Legal Help With Child Support and Taxes

If you're still negotiating child support and child custody as part of your divorce, mediation might help. Otherwise, an experienced family law attorney can explain how different custody arrangements will affect child support and taxes—and can help you get the best outcome for you and your children.