Back child support in Tennessee is past-due support that became a legal judgment the moment each payment was missed. Under Tenn. Code Ann. § 36-5-101, unpaid amounts accrue interest from the date of the arrearage at 12% per year for pre-2017 debt, with no statute of limitations on collection. Tennessee courts cannot reduce or forgive past-due child support once it has accrued.
This guide explains how back child support Tennessee obligations work, how interest is calculated, what enforcement tools the state uses, and how parents on both sides can address child support arrears in 2026.
Key Facts: Back Child Support in Tennessee
| Factor | Tennessee Rule |
|---|---|
| Governing statute | Tenn. Code Ann. § 36-5-101 |
| Interest rate (pre-April 17, 2017 arrears) | 12% per year, simple, non-compounding |
| Interest rate (post-April 17, 2017) | Up to 4% per year, discretionary, court finding required |
| Interest rate (non-IV-D cases, post-July 2018) | 6% per year default, court may reduce |
| Statute of limitations on collection | None |
| Retroactive reduction of arrears | Prohibited (state law + Bradley Amendment) |
| Enforcement agency | Tennessee Department of Human Services (DHS) |
| Contempt fee recovery | Attorney's fees recoverable under Tenn. Code Ann. § 36-5-103 |
What Counts as Back Child Support in Tennessee?
Back child support in Tennessee is the unpaid balance of a court-ordered support obligation, and each missed payment becomes a judgment by operation of law on its due date. Under Tenn. Code Ann. § 36-5-101, if the full amount is not paid when due, the unpaid amount is in arrears, becomes a judgment, and accrues interest at 12% per year from the date of the arrearage.
The terms past due child support, child support arrears, and child support debt describe the same legal concept: support that should have been paid but was not. Tennessee treats all accumulated interest on arrearages as child support itself, meaning interest carries the same enforcement priority as the underlying principal. This distinguishes arrears from ordinary consumer debt. A parent who owes child support debt cannot discharge it in bankruptcy, cannot negotiate it down through normal credit channels, and cannot wait out a limitations period, because none exists for collection in Tennessee.
How Is Interest on Child Support Arrears Calculated?
Interest on past due child support in Tennessee depends entirely on when the arrearage accrued, with a 12% rate for older debt and capped discretionary rates for newer debt. Under Tenn. Code Ann. § 36-5-101, the rate dropped sharply after 2017 reforms aimed at preventing arrears from ballooning beyond a parent's ability to pay.
Before April 17, 2017, interest accrued automatically at 12% per year, simple and non-compounding. On or after April 17, 2017, interest no longer accrues automatically; a Tennessee court must make a written finding for interest to continue, and the rate cannot exceed 4% per year. For non-Title IV-D cases (private cases not administered by the state) on or after July 1, 2018, the default rate is 6% per year, though the court may reduce it to a lower rate or to zero. The 12% figure still appears in the statute as the date-of-arrearage baseline, which is why many parents see it referenced even when their actual ongoing rate is lower.
Interest Rate Comparison Table
| Period or Case Type | Interest Rate | Automatic or Discretionary |
|---|---|---|
| Arrears before April 17, 2017 | 12% per year | Mandatory |
| Arrears on/after April 17, 2017 | Up to 4% per year | Discretionary, written finding required |
| Non-IV-D cases on/after July 1, 2018 | 6% default | Court may reduce to zero |
Is There a Statute of Limitations on Back Child Support in Tennessee?
There is no statute of limitations on collecting back child support in Tennessee, meaning a parent can pursue arrears decades after they accrued. Tennessee law and federal law both permit indefinite enforcement, and child support debt does not expire when the child turns 18 or reaches the age of majority.
This no-limit rule reflects both Tennessee policy and the federal Bradley Amendment, 42 U.S.C. § 666(a)(9)(c), which requires every state to treat each past-due installment as a non-expiring judgment and lien. A parent who owes child support from the 1990s remains legally liable for that full amount plus accrued interest in 2026. Custodial parents and the state can file enforcement actions at any time, and the obligation survives even after the child becomes an adult. For receiving parents, this means there is no deadline to act, though gathering payment records and the original support order early makes any enforcement action stronger. For paying parents, it means old child support debt does not simply disappear with the passage of time.
Can Tennessee Courts Reduce or Forgive Past Due Child Support?
Tennessee courts cannot retroactively reduce, modify, or forgive past-due child support that has already accrued. Under Tenn. Code Ann. § 36-5-101, a child support judgment is not subject to modification as to any time period or amounts due before the date a modification action is filed.
The federal Bradley Amendment reinforces this rule across all states by prohibiting retroactive reduction of arrears, overriding state statutes of limitation, and removing judicial discretion, even from bankruptcy judges. The only narrow exception applies to arrears that accumulate after both the receiving parent and the support enforcement entity receive notice that a modification application is pending. This is why timing matters so much. A paying parent who experiences job loss, disability, or another major change must file a modification petition immediately, because any reduction applies only to support coming due after the filing date. Support that piled up before filing remains fully owed at the original amount plus interest. Waiting to file is the single most common reason parents accumulate large, unforgivable child support debt in Tennessee.
How Does Tennessee Enforce Back Child Support?
Tennessee uses an aggressive set of enforcement tools to collect back child support, administered primarily by the Department of Human Services in Title IV-D cases. Under Tenn. Code Ann. § 36-5-101, enforcement ranges from automatic wage withholding to license suspension and, in willful cases, jail.
Wage garnishment, called income withholding, is the most common method: a court order directs the paying parent's employer to deduct support from wages, bonuses, and other income and forward it to the state. Tennessee also intercepts federal and state tax refunds and state lottery winnings, places liens on real estate and vehicles, levies bank accounts, and reports arrears to credit bureaus. For arrears exceeding the federal threshold, the state can request that the U.S. Department of State deny or revoke a passport. License suspension is among the most effective tools, reaching driver's licenses, professional licenses for doctors, lawyers, contractors, and nurses, and recreational hunting and fishing licenses.
Enforcement Methods Comparison
| Enforcement Method | What It Targets | Typical Speed |
|---|---|---|
| Income withholding | Wages, bonuses, commissions | Fast |
| Tax refund intercept | Federal and state refunds | Automatic at threshold |
| License suspension | Driver, professional, recreational | Moderate, may need hearing |
| Passport denial | International travel | At federal arrears threshold |
| Property liens, bank levy | Real estate, vehicles, accounts | Moderate |
| Contempt and jail | Willful non-payment | Slower, requires hearing |
What Is a Petition for Contempt for Unpaid Child Support?
A petition for contempt asks a Tennessee court to hold a non-paying parent in contempt for violating a child support order, and it can result in jail, judgment for arrears, and attorney's fees. Under Tenn. Code Ann. § 36-5-103, the prevailing party may recover reasonable attorney's fees in any civil or criminal contempt action to enforce a child support decree.
When a court addresses arrears through contempt, it typically reduces the arrears to a fixed judgment, sets a monthly arrearage payment, adds applicable interest, orders a wage assignment, and may award attorney's fees to the parent who had to bring the action. If the court finds the non-payment was willful, meaning the parent had the ability to pay but chose not to, it can sentence the non-paying parent to jail until payment is made or as punishment. The 2018 amendment to Tenn. Code Ann. § 36-5-103, effective July 1, 2018, expanded fee recovery, and notably the prevailing party is not necessarily the petitioner, so a paying parent who successfully defends an unjustified contempt action may also recover fees.
How Are Retroactive Support and Arrears Different in Tennessee?
Retroactive support and arrears are distinct concepts in Tennessee, and a separate five-year rule applies only to establishing retroactive support, not to forgiving existing arrears. Under Tenn. Code Ann. § 36-2-311, courts in paternity cases can order support dating back to the child's birth but generally limit retroactive claims to five years.
Retroactive support is support ordered for a period before any order existed, most often in paternity cases where legal fatherhood was established later. For actions filed on or after July 1, 2017, Tennessee generally caps retroactive support at five years, though the court may award more or less based on special circumstances and the interest of justice. This five-year provision is frequently confused with arrears collection, but the two are unrelated. Existing child support arrears, support that accrued under an active order and went unpaid, have no five-year limit and cannot be forgiven. Understanding this distinction prevents paying parents from mistakenly believing their accumulated child support debt expires after five years, which it does not.
What Should Parents Do About Back Child Support in 2026?
Parents dealing with back child support in Tennessee should act quickly, because delay increases interest and forecloses options under the no-retroactive-modification rule. Whether owed or owing, the first step is obtaining a certified copy of the support order and a complete DHS payment ledger to confirm the exact arrears balance and interest.
Receiving parents can open or reactivate a Title IV-D case through the Tennessee Department of Human Services to access wage withholding, intercepts, and license actions at no attorney cost, or hire private counsel to file a contempt petition under Tenn. Code Ann. § 36-5-103 and recover fees. Paying parents who cannot meet their obligation must immediately file a modification petition to stop future arrears from accruing, since past-due amounts cannot be reduced. Negotiating a court-approved payment plan can restore a suspended license and halt escalating enforcement. Because interest, contempt exposure, and license consequences vary by case type and county, consulting a Tennessee family law attorney before responding to any enforcement notice protects both sides. Filing fees and court costs are set by each county clerk and vary by court. As of February 2026, verify current amounts with your local clerk.