How child support is enforced

A child support order is a court or agency order like any other, and the law treats each unpaid installment as a debt. What makes child support different is the enforcement machinery behind it. Federal law requires every state to run a child support program and to give that program collection tools that ordinary creditors do not have. This guide explains the main ones, in roughly the order agencies use them, and what each means for the paying parent and the receiving parent.

Every missed payment becomes a judgment

Enforcement starts with a simple rule. Under 42 U.S.C. § 666(a)(9), states must treat each support installment, once it is due and unpaid, as a judgment by operation of law. The receiving parent does not need to go back to court to turn a missed payment into an enforceable debt, and other states must give that judgment full faith and credit. The same provision bars retroactive modification: a court can lower an order only from the date the other parent was notified of a request to change it, not for months already past.

That second point matters to the paying parent. If income falls and nothing is filed, the full amount keeps falling due. Our guide on how to modify a child support order covers the review process, and the modification calculator shows how a new guideline amount compares with the current order.

Most enforcement is handled by the state child support agency, often called the IV-D agency after the part of the Social Security Act that created the program. A receiving parent can open a case with the agency for enforcement even when a private lawyer obtained the original order. Our guide on applying for child support services explains how.

Income withholding: the default, with a federal ceiling

Income withholding is the workhorse of collection. The agency or court sends the employer a withholding notice, and the employer deducts support from each paycheck and forwards it, much like payroll taxes. According to the federal Office of Child Support Enforcement, support orders must include an income withholding provision unless both parents and the court agree on another way to pay. Withholding can cover current support and past-due support, and it follows the parent from job to job because employers report new hires to a state directory that the agency checks.

Federal law limits how much of a paycheck can be taken. Under the Consumer Credit Protection Act, as summarized in the Department of Labor’s fact sheet on wage garnishment, withholding for support can reach 50% of disposable earnings when the paying parent supports another spouse or child, and 60% when they do not. Each limit rises to 55% and 65% when the support being collected is more than 12 weeks overdue. For comparison, an ordinary creditor’s garnishment is generally capped at 25%. States may set lower limits, and “disposable earnings” means pay after legally required deductions such as taxes, not take-home pay after voluntary ones.

For most current orders the cap never comes into play. In Texas, a paying parent earning $72,000 a year with one child and a receiving parent earning $30,000 has a guideline amount of $991, well under half of disposable pay. The cap starts to bind when arrears are added on top of current support, or when income has fallen sharply but the order has not been changed.

Federal intercepts: tax refunds and passports

When support goes unpaid, states can reach money and privileges controlled by the federal government. Two programs run through the federal office in partnership with the states.

The Federal Tax Refund Offset Program takes past-due support out of a federal tax refund before it reaches the paying parent. The federal office says a case qualifies when the arrears reach $150 where the receiving parent gets TANF cash assistance, or $500 where they do not. The parent receives a pre-offset notice first, with a way to contest the amount. When a joint return is intercepted, the other spouse can ask the IRS to protect their share of the refund.

Passport denial applies at a higher level of debt. Under 42 U.S.C. § 652(k), once a state certifies arrears above $2,500, the State Department must refuse a passport and may revoke or restrict an existing one. Paying the balance down below that figure does not by itself lift the hold; the state has to ask for removal, usually after full payment or an agreed payment plan.

Licenses, liens, credit reports and bank accounts

The same federal statute requires states to have a set of administrative remedies. States must be able to withhold, suspend or restrict driver’s licenses, professional and occupational licenses, and recreational licenses such as hunting and fishing licenses. Liens arise automatically against property of a parent who owes overdue support. States report overdue support to consumer credit bureaus, and they match records with banks so that accounts can be frozen and seized. Lump sums such as judgments, settlements and lottery winnings can be intercepted, along with unemployment and workers’ compensation benefits, and retirement funds can be attached. Social Security retirement and disability benefits can be withheld for support too, but SSI can’t; see child support and Social Security benefits.

Each of these tools has notice requirements and a way to dispute the amount, and states differ in how quickly they act. A license suspension, for example, usually follows a warning letter and a window to pay or to agree a payment plan. The practical lesson is the same for both parents: the agency’s records drive these actions, so a payment made directly between parents and never recorded can leave a debt on the books that has in fact been paid. Paying through the state disbursement unit avoids that; the guide to how child support is paid explains how payments flow.

Contempt and other court remedies

Courts keep their own power to enforce their orders. A receiving parent, or the agency, can ask the court to hold the paying parent in civil contempt. The court generally asks whether the parent was able to pay and chose not to. If so, it can order payment of a set amount, known as a purge, and in some cases order jail until that amount is paid. Inability to pay, shown with evidence, is usually a defense to contempt, though not to the debt itself. Willful nonpayment can also be prosecuted as a crime in some circumstances.

Courts can also order a parent to look for work, join a job program, post a bond or surrender assets. Many agencies now offer employment services for paying parents who are out of work, on the reasoning that steady earnings collect more support than penalties do. Where the parents live in different states, the Uniform Interstate Family Support Act decides which state enforces; see our guide on interstate cases.

Interest on unpaid support

Arrears often grow over time because many states charge interest. Among the states this site covers with an official source located, 25 set a fixed statutory rate. Texas, for example, charges 6% a year. Others, including Delaware, District of Columbia, Minnesota, North Carolina, Pennsylvania and Wyoming, don’t charge interest on child support arrears, and in some states interest is charged only when a court orders it. The arrears and interest calculator works out principal and interest under each state’s rule, and our guide on back child support and arrears explains how arrears accrue and how payment plans work.

What each parent can do

For the receiving parent, the most effective step is usually to have the case with the state agency, keep a record of payments received, and report changes such as a new employer or address of the other parent. The agency, not the receiving parent, starts most of the tools described here.

For the paying parent, the most effective step is to act early. Keeping payments on record, asking for a review as soon as income changes, and agreeing a payment plan before arrears reach the federal thresholds can head off refund intercepts, license actions and passport holds. Filing for bankruptcy doesn’t stop most of these tools or erase the debt; see child support and bankruptcy. The guideline amount the order was based on can be checked with the child support calculator, but only a new order changes what is owed. Courts can deviate from the guidelines, and the amount in the order is what enforcement collects.