Unpaid child support isn't treated like an ordinary debt. States and the federal government have a specific, powerful set of enforcement tools most other creditors don't have access to.
Income withholding
In most cases, child support is withheld directly from a paying parent's paycheck by their employer, automatically, from the very start of the order — not just after a payment is missed. This is generally the default collection method nationwide, not a last resort.
License and passport actions
States commonly have authority to suspend driver's licenses, professional or occupational licenses, and even recreational licenses (hunting, fishing) for parents significantly behind on support. At the federal level, the State Department can deny or revoke a passport for parents who owe more than a statutory threshold in arrears.
Tax refund interception and other tools
The federal Treasury Offset Program can intercept federal tax refunds to cover certified child support arrears. States can also report arrears to credit bureaus, place liens on property, and in serious or willful nonpayment cases, pursue contempt of court proceedings that can include jail time.
FAQ
Does interest get added to unpaid child support?
In many states, yes — see our arrears calculator for state-by-state interest rates and whether accrual is automatic or requires a court order.
What if I can't pay because I lost my job?
Contact the court or your state's child support agency as soon as possible — a modification request for a genuine, documented income loss is generally treated very differently than simply stopping payments.