Is There a Statute of Limitations on Back Child Support?

There is no single statute of limitations on back child support that applies nationwide. Under federal law, every missed payment becomes a court judgment the moment it comes due, and no state can go back and erase it. What varies is how long a state gives its enforcement agencies to collect on those judgments: some states set no deadline at all, and the rest typically allow 10 to 20 years, often measured from the child’s 18th birthday.

That means the practical answer for most parents is that the debt follows them for decades, and in many states, for life.

Why Arrears Cannot Be Forgiven

The Bradley Amendment, passed in 1986, is the federal law that locks arrears in place. It requires every state to treat each child support payment as a judgment by operation of law on the date it becomes due. Once a payment is missed, no state court can reduce or cancel it. The statute states that accrued child support is “not subject to retroactive modification by such State or by any other State.”¹

There is one narrow exception. A court may modify support going back to the date a modification petition was filed, provided the other parent received notice. Anything that accrued before that filing date is permanent. A parent who lost a job three years ago and never asked the court to lower the order still owes every dollar from those three years. This is where most people get into trouble: they wait, assuming the court will account for hard times later, and the balance keeps growing the entire time.

Each accrued judgment also carries full faith and credit across state lines, so relocating does not shake the debt loose.¹

How Long States Have to Collect

Although the Bradley Amendment makes every missed payment permanent, states still decide how long their agencies and the custodial parent have to actually enforce those judgments. The variation is substantial.

A large number of states have no statute of limitations on back child support at all. In those states, arrears remain enforceable until paid in full, no matter how many years pass. The debt can be collected long after the child has grown up and started a family of their own.

States that do set a deadline generally allow somewhere between 10 and 20 years. The clock usually starts on one of two dates: the date each individual payment was due, or the date the child reached the age of majority (typically 18). In a state with a 10-year limit measured from the child’s 18th birthday, arrears remain collectible until the child turns 28. In a state with a 20-year limit tied to each missed payment, early missed payments and later missed payments each have their own window, so collection can effectively run even longer.

The state that issued the original child support order controls which deadline applies. Some states also allow the custodial parent to renew the arrears judgment before the deadline runs, which restarts the clock. That option alone can extend enforcement well past the stated limit.

Interest Keeps the Balance Growing

Roughly two-thirds of states charge interest on unpaid child support. Annual rates typically run from about 4% to 12%, with some states tying the rate to market factors that change over time. A parent who owes $20,000 in a state charging 10% annual interest watches the balance grow by $2,000 a year before any payment is applied. Over a decade of nonpayment, interest alone can nearly double the original debt.

Because the Bradley Amendment blocks retroactive modification, accrued interest generally cannot be reduced by a court either. The only reliable way to stop the compounding is to pay down the principal or get the ongoing order modified before more arrears pile up.

Moving to Another State Does Not Reset the Clock

When the parents and child live in different states, the Uniform Interstate Family Support Act (UIFSA) governs enforcement. UIFSA has been adopted in all 50 states, and it provides that the law of the state that issued the original order controls the terms of the obligation, including how long the debt remains collectible.² A parent who moves to a state with a shorter deadline cannot use that shorter window if the issuing state allows longer enforcement.

UIFSA also lets the custodial parent register the existing order in the state where the owing parent now lives. Once registered, local enforcement agencies can use their own collection tools, including wage garnishment, bank levies, and license suspensions, without having to go back to the original court.

What Enforcement Looks Like

While the debt is still collectible, federal law requires every state to maintain a specific set of enforcement mechanisms, and they can be used at the same time.³

Wage Garnishment

Income withholding is the most common method. The employer withholds a portion of the parent’s paycheck and sends it to the child support agency. Federal law caps the garnishment at 50% of disposable earnings if the parent is supporting another spouse or child, and 60% if not. When payments are more than 12 weeks overdue, those limits increase by an additional 5%.⁴ “Earnings” is defined broadly and includes salaries, commissions, bonuses, pension payments, and workers’ compensation benefits.⁵

Social Security and Federal Benefits

Retirement does not provide shelter. Federal law authorizes withholding from nearly all federal payments based on employment, including Social Security retirement and disability, federal pensions, military retirement pay, and in some circumstances veterans’ disability compensation.⁶ Parents who plan to wait out the debt until Social Security kicks in are often surprised to find those checks garnished too.⁷

Tax Refund Intercepts

State child support agencies submit arrears information to the U.S. Treasury, which intercepts federal tax refunds and forwards the money to the custodial parent through the state agency.⁸ The authority is in federal regulations.⁹

Passport Denial

Once arrears exceed $2,500, the State Department will deny or revoke the parent’s passport. This happens automatically after the state agency certifies the debt to the federal Office of Child Support Services.¹⁰¹¹

Liens, Licenses, and Credit Reporting

Federal law requires states to impose automatic liens on real and personal property for overdue child support. A lien on a house or vehicle blocks sale or refinancing until the debt is resolved, and liens from one state must be honored by every other state.³ States must also report delinquent parents to consumer credit agencies, and they can suspend driver’s licenses, professional licenses, and recreational licenses. The specific trigger varies by state, but every state has these tools.

Civil Contempt and Jail

State courts can hold a parent in civil contempt for failing to obey a child support order, and civil contempt can mean jail time. The court must first determine that the parent actually has the ability to pay; a parent who genuinely cannot pay cannot be jailed for civil contempt. When incarceration is ordered, the parent usually holds the key to their own release by paying a “purge amount” set by the court.

Federal Criminal Charges

Nonpayment can also become a federal crime when the obligation crosses state lines. Under 18 U.S.C. § 228, a parent who willfully refuses to pay support for a child in another state faces federal prosecution if the debt has gone unpaid for more than a year or exceeds $5,000. First offenses are misdemeanors with up to six months in prison; arrears over $10,000 or unpaid more than two years make the offense a felony with up to two years in prison.¹²

Bankruptcy and Death Do Not End the Debt

Two things that end most debts do not end this one.

Child support arrears cannot be discharged in bankruptcy. Federal bankruptcy law classifies child support as a “domestic support obligation,” which is explicitly excluded from the debts a bankruptcy court can wipe out.¹³ This holds true in Chapter 7, Chapter 13, and every other chapter. A Chapter 13 plan can structure payments over three to five years, but the full balance survives the case. Child support arrears also get priority status, meaning they get paid before most other debts.

Death of the owing parent does not end it either. In most states, unpaid child support becomes a claim against the deceased parent’s estate. The custodial parent can file a creditor’s claim in probate, and arrears are typically paid from estate assets before other creditors or heirs receive their share. Future monthly payments generally stop at death, but the accumulated balance stays collectible from whatever the parent left behind.

The One Real Way to Reduce a Balance

There is a limited path to actually reducing arrears: state-run debt compromise programs. Many states allow negotiated settlements for arrears owed to the state rather than to the custodial parent. State-owed debt arises when the custodial parent received public assistance such as TANF, and the state “assigned” the debt to itself as reimbursement.¹⁴

These programs vary widely. Some require consistent current payments for six to twelve months before state-owed arrears are reduced. Others offer lump-sum settlements at a discount. A few forgive state-owed debt in stages over several years. The key limit is that these programs usually apply only to the state’s portion of the debt. Arrears owed directly to the custodial parent generally cannot be compromised without that parent’s written consent and court approval. The custodial parent can voluntarily waive their share, but only through a formal court process, and they have no authority to waive arrears that belong to the state.

For a parent carrying a large balance, calling the local child support agency to ask about compromise or settlement options is worth the effort. Not every state offers these programs, and eligibility is often strict, but for state-owed arrears it may be the only realistic way to shrink the number.

1
Office of the Law Revision Counsel. 42 USC 666 – Requirement of Statutorily Prescribed Procedures to Improve Effectiveness of Child Support Enforcement
2
Administration for Children and Families. IM-9503A – UIFSA Guidance
3
Office of the Law Revision Counsel. 42 USC 666 – Requirement of Statutorily Prescribed Procedures to Improve Effectiveness of Child Support Enforcement
4
Office of the Law Revision Counsel. 15 USC 1673 – Restriction on Garnishment
5
U.S. Department of Labor. Fact Sheet 30 – Wage Garnishment Protections of the Consumer Credit Protection Act
6
Office of the Law Revision Counsel. 42 USC 659 – Consent by United States to Income Withholding, Garnishment, and Similar Proceedings for Enforcement of Child Support and Alimony Obligations
7
Social Security Administration. Can My Social Security Benefits Be Garnished or Levied?
8
Administration for Children and Families. How Does a Federal Tax Refund Offset Work?
9
eCFR. 31 CFR 285.3 – Offset of Tax Refund Payments to Collect Past-Due Support
10
Office of the Law Revision Counsel. 42 USC 652 – Duties of Secretary
11
Administration for Children and Families. How Does the Passport Denial Program Work
12
Office of the Law Revision Counsel. 18 USC 228 – Failure to Pay Legal Child Support Obligations
13
Office of the Law Revision Counsel. 11 USC 523 – Exceptions to Discharge
14
Administration for Children and Families. State Child Support Agencies With Debt Compromise Policies