Back child support in Utah is past-due support that becomes a judgment by operation of law the moment each monthly payment is missed. Under Utah Code § 81-6-106, unpaid installments are legally enforceable debts. The Office of Recovery Services (ORS) can collect these arrears up to 4 years after the youngest child reaches age 18, or 8 years from a sum-certain judgment, whichever is longer. Enforcement tools include wage garnishment, tax refund interception, license suspension, and passport denial.
This guide explains how back child support accumulates in Utah, who enforces it, how long the state has to collect, what interest applies, and the specific tools ORS and the courts use to recover past due child support. Whether you are a parent owed support or a parent who owes child support debt, the rules below determine your rights and exposure under current Utah law.
Key Facts: Back Child Support in Utah
| Factor | Utah Rule |
|---|---|
| Governing Law | Utah Child Support Act, recodified to Title 81, Chapter 6 (effective Sept. 1, 2024) |
| How Arrears Accrue | Each missed payment becomes a judgment by operation of law |
| Statute of Limitations | 4 years after youngest child turns 18, OR 8 years from sum-certain judgment (whichever is longer) |
| Interest Rate | Federal post-judgment rate + 2% on adjudicated judgments (resets each January) |
| Enforcement Agency | Office of Recovery Services (ORS), Utah's Title IV-D agency |
| Modification Petition Fee | $100 (as of January 2026 — verify with your local clerk) |
| Age of Majority | 18, or high school graduation in the expected year, whichever is later |
| Bankruptcy | Child support debt is non-dischargeable |
| Federal Crime Threshold | Over $5,000 unpaid OR more than 1 year, with parent and child in different states (18 U.S.C. § 228) |
How Back Child Support Accumulates in Utah
Back child support in Utah accrues automatically. Each monthly installment becomes a judgment by operation of law the moment it is due and unpaid, meaning the obligated parent does not need to return to court each month to establish the debt. The law recognizes the unpaid amount as an enforceable money judgment immediately upon the missed due date.
This automatic-judgment rule, grounded in Utah's child support framework under Title 81, Chapter 6, is one of the most important protections for parents owed support. Because each unpaid installment is already a judgment, the receiving parent does not have to prove the existence of the debt repeatedly. Past due child support builds up payment by payment, and the cumulative total can grow into tens of thousands of dollars over the years a child is a minor. Even partial payments leave a running arrears balance that ORS or a court can later reduce to a single sum-certain judgment for collection and renewal purposes.
The Office of Recovery Services (ORS) and Enforcement
The Office of Recovery Services (ORS) is Utah's Title IV-D child support agency and the primary enforcer of back child support. ORS acts as a middleman: the paying parent sends payments to ORS, and ORS distributes them to the receiving parent, creating an official payment record. This paper trail prevents disputes over whether a payment was actually made. ORS services are available at no cost to either parent.
When a parent falls behind on child support, ORS has broad administrative powers to collect arrears without returning to court each time. These tools operate continuously until the child support debt is satisfied. Many of these remedies are triggered automatically once a case is open and an arrears balance exists, which is why opening an ORS case early protects the receiving parent's ability to recover past due child support. ORS can also coordinate with other states through the Uniform Interstate Family Support Act, now recodified at Utah Code § 81-8, when the paying parent lives outside Utah.
Enforcement Tools for Collecting Past Due Child Support
Utah uses a wide range of enforcement tools to collect back child support, and ORS can deploy several simultaneously. The most common remedies include income withholding (wage garnishment), federal and state tax refund interception, and credit bureau reporting. These administrative actions do not require a new court hearing once an arrears balance is established.
The full list of enforcement measures available to ORS and Utah courts includes:
- Wage garnishment and automatic income withholding from paychecks
- Federal and state tax refund interception
- Withholding from workers' compensation and unemployment benefits
- Suspension or revocation of professional, occupational, and driver's licenses
- Denial, suspension, or revocation of U.S. passport applications and renewals
- Interception of lottery winnings
- Credit bureau reporting of the child support debt
- Liens on real and personal property
- Contempt of court proceedings, which can result in fines or jail time
Contempt is the most serious civil remedy. A judge who finds a parent willfully failed to pay child support can order jail time until the parent purges the contempt by paying. Because owing child support carries these escalating consequences, parents who cannot pay should seek a modification rather than simply stopping payments.
Statute of Limitations on Back Child Support in Utah
The statute of limitations for collecting back child support in Utah is 4 years after the youngest child named in the order reaches the age of majority, OR 8 years from the date a sum-certain judgment is entered, whichever period is longer. This rule is governed by Utah Code § 78B-5-202. A sum-certain judgment is a specific court order stating the exact dollar amount owed.
The distinction matters enormously for parents owed large arrears. Without a sum-certain judgment, the four-year window after the child's majority can close and bar collection. But once a parent obtains a sum-certain judgment, that judgment is valid for eight years and can be renewed indefinitely before it expires, effectively keeping the child support debt collectible for life. The age of majority in Utah is 18, or the child's expected high school graduation date, whichever occurs later. For orders issued by another state, ORS may apply that state's longer statute of limitations to extend the collection period. Parents owed substantial back child support should consider reducing the arrears to a sum-certain judgment before the four-year clock expires.
Interest on Child Support Arrears in Utah
Utah does not charge interest on ordinary past-due child support payments automatically, but interest can apply to adjudicated arrears at the federal post-judgment rate plus 2%. This combined rate is set each January and stays fixed for the year. Interest is generally collected only after the arrears are reduced to a formal judgment specifying a dollar amount.
The practical rule is that interest must usually be reduced to a sum-certain judgment to be enforceable. ORS will collect interest on child support arrears in only three situations: when the interest is listed as a specific dollar amount in a judgment, when an interstate case provides ORS with the specific interest figure from the other state, or when a case has been referred for criminal nonsupport prosecution. A judge can include accrued interest when finalizing a sum-certain judgment. Because Utah does not auto-apply interest in routine administrative cases, parents owed years of back child support should ask the court to calculate and include interest when seeking a judgment, as this can add a significant amount to the total owed.
What Happens If You Don't Pay Back Child Support
Failing to pay back child support in Utah triggers escalating consequences, from administrative collection to criminal prosecution. ORS begins with wage garnishment, tax intercepts, and license suspensions, then courts can hold a non-paying parent in contempt with possible jail time. Child support debt is non-dischargeable in bankruptcy and survives even after the child turns 18 if arrears remain.
The most severe exposure is federal criminal liability. Under the Deadbeat Parents Punishment Act, 18 U.S.C. § 228, failing to pay child support for a child who lives in a different state becomes a federal crime when the unpaid obligation exceeds $5,000 or remains unpaid more than one year. The basic offense is a misdemeanor punishable by up to 6 months in prison. The felony tier applies when arrears exceed $10,000 or remain unpaid more than 2 years, carrying up to 2 years in federal prison plus mandatory restitution. In one federal case, a parent owing $83,890.37 received a 24-month sentence. Federal prosecutions are rare and reserved for egregious cases, but the threshold exposure is real for any parent who relocates across state lines to avoid paying child support.
Retroactive Child Support and Establishing Arrears
Retroactive child support in Utah can be awarded for periods before a formal order existed, but the recoverable window is limited by statute. In paternity-related cases, Utah Code § 81-5-109 limits the obligor's liability for past support to the four years preceding the start of the action. This caps how far back a parent can reach for support that accrued before a case was filed.
A separate limitation affects ORS collection. ORS will not collect child support, spousal support, or child care arrears that accrued during periods when there was no open IV-D case, including time before a case was first opened. To collect arrears from those gap periods, the receiving parent must obtain a judicial determination of arrears, a court ruling fixing the exact balance owed on the support order for those specific time periods. This is why parents should open an ORS case promptly and document every missed payment. Establishing arrears through the court not only fixes the amount but converts the debt into the more durable sum-certain judgment that extends the collection timeline to eight renewable years.
How to Collect Back Child Support in Utah
To collect back child support in Utah, the receiving parent typically opens a case with ORS, which then deploys administrative enforcement tools at no cost. ORS will garnish wages, intercept tax refunds, and pursue license suspensions automatically once an arrears balance is documented. For larger or older debts, obtaining a sum-certain judgment through the court is the strongest protection.
The practical steps for recovering past due child support are:
- Open or reactivate a case with the Office of Recovery Services if you do not already have one.
- Document every missed payment and the running total of child support arrears.
- Request a judicial determination of arrears for any periods when no IV-D case was open.
- File to reduce the arrears to a sum-certain judgment before the four-year post-majority deadline expires.
- Ask the court to include statutory interest (federal rate plus 2%) in the judgment.
- Renew the eight-year sum-certain judgment before it lapses to keep the debt collectible.
Obtaining a sum-certain judgment is the single most important step because it extends the collection window and locks in interest. A Utah family law attorney can prepare the motion and arrears calculation, though parents can also use the self-help resources at utcourts.gov.