Child Support Enforcement: What Happens When a Parent Doesn't Pay

The Scope of Unpaid Child Support in America

Here's the scale: federal OCSE data puts total unpaid child support in the United States past $113 billion, with roughly 30% of active cases carrying arrears. For the custodial parent waiting on that check, enforcement isn't a concept — it's rent. And the tools states and OCSE can deploy have teeth: wage garnishment, passport denial past $2,500 under 42 U.S.C. § 652(k), driver's-license suspension, and — past $5,000 interstate — federal prison under the Deadbeat Parents Punishment Act.

Every state has a child support enforcement agency, typically operating under the state attorney general, the department of social services, or a dedicated child support agency. These agencies provide enforcement services to any custodial parent who requests them, regardless of income. In most states, there is no cost to the custodial parent for enforcement services, though a small annual fee (typically $25 to $35) may apply for cases that do not involve public assistance.

The enforcement tools available are extensive and increasingly powerful. Federal and state laws have been strengthened repeatedly over the past three decades, creating a state-federal enforcement system that can follow non-paying parents across state lines, garnish their wages, seize their assets, and even deny them passports. For an overview of how support is calculated, see our state-by-state child support guide.

Wage Garnishment: The Most Common Enforcement Tool

Income withholding, commonly called wage garnishment, is the primary enforcement mechanism for child support in the United States. Under the federal Consumer Credit Protection Act (15 U.S.C. §1673), up to 50% of a parent's disposable earnings can be garnished for child support if the parent is supporting another spouse or child, and up to 60% if they are not. An additional 5% can be garnished if the parent is more than 12 weeks in arrears.

Most child support orders now include an automatic income withholding provision from the start, meaning the payments are deducted from the paying parent's paycheck before they ever receive it—similar to tax withholding. If the paying parent changes jobs, the enforcement agency can issue a new withholding order to the new employer. The employer is legally required to comply and can face penalties for failing to withhold.

Self-employed parents present a greater challenge for wage garnishment since they do not receive a traditional paycheck. In these cases, the enforcement agency may use other tools such as bank account levies, tax reimbursement intercepts, or liens on business assets. If you are a custodial parent having difficulty collecting from a self-employed co-parent, contact your state's child support enforcement agency for assistance.

Tax reimbursement Intercepts and Financial Penalties

The Federal Tax reimbursement Offset Program, administered by the U.S. Department of the Treasury's Bureau of the Fiscal Service, intercepts federal tax reimbursements of parents who owe past-due child support. If you owe $150 or more in arrears (or $500 for cases not involving public assistance), your federal tax reimbursement can be seized and redirected to the custodial parent. State tax reimbursements can also be intercepted under most state laws.

Banks accounts can be levied (frozen and seized) to satisfy child support arrearages. The enforcement agency issues a levy to the bank, which freezes the account and, after a waiting period, transfers the funds to the child support agency. This is a powerful tool that can be particularly effective against self-employed parents or those who receive income outside of traditional employment.

Liens can be placed on real estate, vehicles, and other personal property. A child support lien prevents the non-paying parent from selling or refinancing property without first satisfying the arrearage.

In some states, the enforcement agency can force the sale of property to collect past-due support. Interest accrues on unpaid support in most states, typically at 6% to 12% per year, making arrearages grow rapidly if left unaddressed.

License Suspensions and Passport Denial

Every state has the authority to suspend the driver's license, professional licenses, and recreational licenses (hunting, fishing) of parents who fail to pay child support. Under 42 U.S.C. §666(a)(16), states must have procedures for suspending licenses of individuals who are in arrears. The threat of losing a driver's license or professional license—which can affect the parent's ability to work—is one of the most effective motivators for payment.

At the federal level, the Passport Denial Program under 42 U.S.C. §652(k) denies, revokes, or restricts passports for parents who owe more than $2,500 in child support arrears. The U.S. Department of State will not issue or renew a passport until the arrearage is paid in full or a satisfactory payment arrangement is made. This program is administered in coordination with OCSE and has been highly effective at collecting past-due support.

These enforcement tools are designed to be progressive—less severe measures are used first, with more aggressive tools deployed as the arrearage grows or the non-paying parent shows a pattern of non-compliance. If you are the non-paying parent and are struggling to meet your obligation, the best course of action is to file for a modification rather than simply not paying. Courts are far more sympathetic to parents who seek help proactively.

Contempt of Court and Criminal Penalties

When other enforcement tools fail, the custodial parent or enforcement agency can ask the court to hold the non-paying parent in contempt. Civil contempt means the parent is found to have willfully disobeyed the court order.

The consequence is typically a jail sentence that the parent can "purge" by making a payment—sometimes the full arrearage, sometimes a significant portion. The threat of jail is one of the strongest enforcement tools available.

Criminal non-support charges are available in most states for persistent non-payment. These are typically misdemeanor charges that can result in fines and up to one year in jail.

For parents who cross state lines to avoid child support, the federal Deadbeat Parents Punishment Act (18 U.S.C. §228) makes willful failure to pay child support a federal crime when the arrearage exceeds $5,000 or has been unpaid for more than one year. The penalty can include up to two years in federal prison.

Criminal prosecution is relatively rare and is reserved for the most egregious cases of willful non-payment. Most enforcement agencies prefer to use administrative tools like wage garnishment and tax intercepts because these methods actually collect money for the child.

Jailing a parent does not generate income—it makes the arrearage worse. Still, the possibility of criminal consequences serves as a powerful deterrent.

What to Do If You Cannot Pay

If you are struggling to pay child support, the worst thing you can do is nothing. Unpaid child support accumulates as a debt with interest, and most states cannot retroactively reduce arrearages—meaning the money you owe continues to grow even if your circumstances change. The right approach is to file for a modification immediately when your circumstances change, explaining to the court why the original amount is no longer feasible.

Contact your state's child support enforcement agency and explain your situation. Many agencies have hardship programs or can help you negotiate a payment plan for arrearages.

The OCSE maintains a directory of state child support agencies and resources for parents who are struggling to pay. Some states also offer debt compromise programs that reduce the total arrearage owed to the state (for cases involving public assistance).

Use our Child Support Estimator to calculate what the guideline amount would be based on your current income. If that amount is significantly lower than your current order, you have strong grounds for a modification.

Our guide on modifying child support walks you through the process. For the broader financial context, see our Complete Guide to Divorce Costs in 2026.