Understanding Child Support Arrears
Child support arrears are the total unpaid balance owed under a court-ordered child support obligation. Every missed payment or underpayment adds to the arrears balance. Most states also add interest to that balance over time, which means the total amount owed grows even when no new payments are missed.
This calculator estimates your current arrears balance based on the order amount, the start date, the total amount paid to date, and your state's approximate interest rate. The result gives you a realistic picture of what is owed - or what is being tracked by the state enforcement agency.
How Arrears Accumulate
The math is straightforward. Each month a payment is missed or underpaid, the unpaid amount is added to the principal arrears balance. If a parent owes $800 per month and pays $300, the unpaid $500 goes into arrears that month. Over 12 months of partial payment, that adds up to $6,000 in new principal arrears.
Interest accrues on top of the principal. Most states charge between 6 and 12 percent annual interest on unpaid child support. Some states like California charge 10 percent. Texas charges 6 percent. New York charges 9 percent. A few states charge no interest at all on arrears. The interest compounds the problem - the longer arrears go unpaid, the larger the balance grows even if the underlying order amount stays the same.
This calculator uses simple interest by default. Many states actually apply compound interest or use a different accrual method. Your actual arrears balance - including the precise interest calculation - is tracked by your state's child support enforcement agency and will differ from this estimate. Use this tool to get a meaningful ballpark, not a definitive legal figure.
The Real Consequences of Unpaid Arrears
Child support arrears trigger serious enforcement actions in every state. Understanding what is at stake is important for anyone dealing with a growing balance.
License suspension is one of the most common enforcement tools. All 50 states can suspend a driver's license for unpaid child support, and many can also suspend professional licenses, recreational licenses, and passports. A parent who loses their driver's license due to arrears may also lose their ability to get to work - making the underlying income problem worse.
Wage garnishment is automatic in most states. Employers receive income withholding orders and deduct support directly from the paying parent's paycheck. When arrears exist, states can withhold up to 65 percent of disposable income to cover both current support and arrears.
Tax refund interception is applied at the federal level when arrears exceed $150 for children receiving public assistance or $500 for all other cases. The federal tax refund - including earned income credits - is redirected to the receiving parent.
Credit reporting affects both the paying parent's ability to borrow and their cost of borrowing. Unpaid child support is reported to credit bureaus and appears on credit reports as a negative item.
Contempt of court is a legal proceeding that can result in fines or jail time in serious cases. Courts treat willful nonpayment differently from inability to pay - a parent who genuinely cannot pay due to unemployment or medical hardship has different options than a parent who has the ability to pay and chooses not to.
If You Cannot Afford to Pay
It is important to know this: if your financial circumstances have changed and you cannot afford the current order amount, you have options. The most important step is not to simply stop paying and let arrears accumulate. Instead, file for a modification as soon as circumstances change. Courts can only modify arrears in very limited circumstances - in most states, arrears that have already accrued cannot be retroactively reduced. But a modification filing stops new arrears from accumulating at the old rate.
Some states also have arrears forgiveness or compromise programs for parents who are genuinely unable to pay and are in compliance with a payment plan. These programs vary widely and are typically administered through the state child support enforcement agency.
If you are receiving public assistance, some of the arrears may be owed to the state rather than to the other parent directly. The breakdown between state-owed and family-owed arrears affects your options for negotiating a settlement.
How to Use This Calculator
Enter your monthly order amount exactly as written in your court order. Enter the month and year the order became effective. Enter the total dollar amount you have paid since the order began - not your monthly payment, but your cumulative total paid. Enter your state's interest rate, or leave the default at 8 percent if you are unsure.
The calculator shows you the total amount that should have been paid, the total paid to date, the principal arrears balance, the estimated interest, and the combined total arrears with interest.
This figure is an estimate. Your actual arrears balance is tracked by your state's child support enforcement agency and may include enforcement fees, adjustments for credited payments, and a different interest calculation than this tool applies.
Getting Help with Arrears
If arrears have accumulated to a point where they feel unmanageable, a family law attorney can advise on your specific options. These may include negotiating a payment plan with the state enforcement agency, requesting a modification if income has changed, or - in limited circumstances - exploring whether a compromise of arrears is available in your state. Acting sooner rather than later limits the growth of the balance and demonstrates good faith to the court.
Talk to a licensed family law attorney about your arrears situation - most offer a free initial consultation.