Back child support in Massachusetts becomes a legal judgment the moment each payment is missed, accrues 12% annual interest plus a 6% annual penalty, and carries no statute of limitations on enforcement. Under Mass. Gen. Laws ch. 119A § 13, past-due support cannot be reduced retroactively except back to the date a modification complaint was served. The Massachusetts Department of Revenue (DOR) collects arrears through wage garnishment, tax intercepts, bank levies, and license suspension.
Key Facts: Back Child Support in Massachusetts
| Factor | Massachusetts Rule |
|---|---|
| Governing arrears statute | Mass. Gen. Laws ch. 119A § 6 and § 13 |
| Interest on arrears | 12% per year (0.5% per month) |
| Penalty on arrears | 6% per year (0.5% per month) |
| Statute of limitations | None on enforcement |
| Retroactive reduction | Barred except to date modification served |
| Contempt filing fee | $0 filing + $5 summons (Probate & Family Court) |
| Passport denial threshold | $2,500 in arrears (federal) |
| License suspension trigger | 8 weeks in arrears |
| Primary enforcement agency | Massachusetts DOR Child Support Enforcement |
The filing fee figures above are current as of January 2026. Verify with your local Probate and Family Court clerk before filing.
What Is Back Child Support in Massachusetts?
Back child support in Massachusetts is any court-ordered child support payment that was not paid by its due date, and the total accumulated amount is called arrears or arrearage. Under Mass. Gen. Laws ch. 119A § 13, each missed installment automatically converts into a court judgment on the day it becomes due, carrying the same legal force as any other money judgment a court could enter.
This automatic-judgment rule is the single most important concept for any parent dealing with past due child support in Massachusetts. Because each unpaid installment is already a judgment, a judge cannot simply erase it. The debt exists by operation of law the instant a payment is missed, without any additional hearing or order required to make it enforceable. Massachusetts treats this child support debt as one of the most aggressively collectible obligations under state law, ranking it alongside tax debt in terms of available enforcement tools and the limited defenses available to the parent who owes it.
Arrears can be owed to two different parties, and the distinction matters. When the custodial parent never received public assistance, the arrears are owed directly to that parent. When the family received state benefits such as Transitional Aid to Families with Dependent Children (TAFDC), part or all of the arrears may be owed to the Commonwealth of Massachusetts as reimbursement for those benefits. The collection rules and the narrow forgiveness pathways differ depending on who holds the debt.
How Much Interest and Penalty Accrue on Arrears?
Massachusetts charges 12% annual interest plus a 6% annual penalty on past-due child support, which together add up to 18% per year on the unpaid balance. Under Mass. Gen. Laws ch. 119A § 6 and regulation 830 CMR 119A.6.1, the DOR assesses 0.5% interest and 0.5% penalty each month on arrears exceeding $500 when the obligor has not made the required minimum monthly payment.
The math compounds quickly. A parent who owes $10,000 in back child support and makes no qualifying payments accumulates roughly $100 every month in combined interest and penalty charges, which equals about $1,200 per year added to a debt that is already past due. Over five years, that same $10,000 principal balance could grow by thousands of dollars in interest and penalties alone, even if the parent never falls further behind on current support.
These charges are assessed on the last day of each month against the total outstanding balance. The interest and penalty rates are set by Massachusetts regulation, not by the divorce judgment or the child support order itself, so they apply automatically once arrears cross the $500 threshold. Importantly, even when a parent cannot get the underlying arrears principal reduced, the DOR retains discretion to waive accumulated interest and penalties in certain cases. A waiver of interest does not eliminate the principal child support debt; it only reduces the additional charges layered on top of it. Parents seeking an interest waiver should contact the DOR Child Support Enforcement Division directly to learn the current eligibility criteria.
Can Back Child Support Be Reduced or Forgiven in Massachusetts?
Back child support in Massachusetts generally cannot be reduced or forgiven by a judge, because Mass. Gen. Laws ch. 119A § 13 bars retroactive modification of arrears that have already accrued. The only exception allows a court to lower support back to the date a modification complaint was served on the other parent, never earlier. A judge has no authority to excuse a debt that vested before that date.
This rule frustrates many parents who experienced a genuine drop in income. If a parent loses a job in January but does not file a complaint for modification until June, the arrears that accrued from January through June remain fully owed and enforceable, even if a judge agrees the parent could not afford to pay during that period. The lesson is direct: a parent who cannot pay must file a modification immediately rather than waiting, because every week of delay locks in more non-reducible debt. Filing a complaint for modification in the Probate and Family Court is the only way to stop arrears from continuing to build at the old rate.
For arrears owed to the other parent, that parent may voluntarily agree to accept a lump-sum settlement or forgive a portion of the debt, but a court cannot impose forgiveness over the recipient's objection. For arrears owed to the Commonwealth, a separate regulatory pathway exists under 830 CMR 119A.6.2, titled Settlement or Equitable Adjustment of Child Support Arrearages Owed to the Commonwealth, administered by the DOR. This program allows the state, in limited circumstances, to settle or adjust the portion of arrears it holds, but it does not touch amounts owed to the custodial parent.
How Does Massachusetts Enforce Back Child Support?
The Massachusetts DOR enforces back child support through an escalating set of administrative tools that require no new court hearing, beginning with income withholding and progressing to tax intercepts, bank levies, liens, and license suspension under Mass. Gen. Laws ch. 119A. Once a case is active with the DOR Child Support Enforcement Division, a case manager can deploy these collection mechanisms automatically against any parent who owes child support.
Income withholding is the first and most common tool. The DOR sends an order directly to the obligor's employer, who then deducts both current support and an additional amount toward arrears from each paycheck before the parent ever receives it. When wages alone cannot satisfy the debt, the DOR intercepts state and federal tax refunds, levies bank accounts, and records liens against real property the parent owns. These actions can occur without a court appearance because the underlying arrears are already judgments under Mass. Gen. Laws ch. 119A § 13.
The enforcement reach extends well beyond paychecks and bank accounts. The DOR can intercept lottery winnings, place liens on personal injury settlements, report the debt to credit bureaus, and seize certain insurance payouts. For interstate cases, the federal Uniform Interstate Family Support Act (UIFSA) allows Massachusetts orders to be enforced across state lines, so moving out of state does not escape the obligation. A parent who relocates remains fully subject to collection because the original Massachusetts judgment travels with the debt.
Can the DOR Suspend Your License for Back Child Support?
Yes, the Massachusetts DOR can suspend your driver's license, professional license, business permit, and recreational licenses for unpaid child support once you fall 8 weeks in arrears, under Mass. Gen. Laws ch. 119A § 16. The DOR notifies the Registry of Motor Vehicles (RMV), which must then suspend the license with no discretion to grant a hardship exception.
The term license is defined extremely broadly under the statute. It covers driver's licenses through subsection § 16B, plus professional and occupational licenses such as those held by nurses, electricians, real estate agents, and attorneys under Mass. Gen. Laws ch. 119A § 14. It also reaches business permits and recreational licenses like hunting and fishing permits. A parent who owes back child support can therefore lose the very credentials needed to earn the income required to pay that support, which is one of the harshest features of Massachusetts enforcement.
Before a suspension takes effect, the DOR must mail written notice and give the parent 30 days to request an administrative hearing. This due-process window is the parent's main opportunity to contest the action, demonstrate a payment arrangement, or correct an error in the arrears calculation. Critically, no hardship license exists for a child support suspension, so a parent cannot obtain limited driving privileges to commute to work as is sometimes possible with other license suspensions. Reinstatement requires either a Probate and Family Court order or a settlement agreement with the DOR; once the parent complies with the agreed terms, the DOR notifies the RMV to restore the license.
Can You Go to Jail for Back Child Support in Massachusetts?
Yes, a Massachusetts Probate and Family Court can send a parent to jail for back child support after a finding of civil contempt, but only when the court determines the parent had the ability to pay and willfully refused. A custodial parent or the DOR initiates this process by filing a complaint for contempt under Mass. Gen. Laws ch. 119A, and the court holds a hearing before imposing any sanction.
Contempt is the court-based enforcement track, distinct from the DOR's administrative tools. To prevail, the moving party must show that a clear child support order existed, that the parent had the financial means to comply, and that the parent failed to do so. Inability to pay is a defense to incarceration, because civil contempt is designed to coerce payment rather than punish poverty. A parent who genuinely cannot pay should bring documentation of income, expenses, and job-search efforts to the hearing to establish that the nonpayment was not willful.
The stakes at a contempt hearing are significant. If the judge finds the parent in contempt, the court can order immediate payment, set a purge amount the parent must pay to avoid jail, require the parent to seek employment, or order incarceration until the purge is satisfied. Massachusetts also applies a presumption that a parent who violated a financial order will pay the other side's legal fees and costs. Any monetary contempt judgment carries 12% annual interest from the date the complaint was filed, under the rate set by Mass. Gen. Laws ch. 231 § 6C. For chronic, long-term nonpayment, prosecutors may also pursue separate criminal charges.
How to File a Complaint for Contempt for Unpaid Child Support
To collect back child support through the courts, a parent files a Complaint for Contempt in the same Probate and Family Court that issued the original child support order, and there is no filing fee, though the court charges roughly $5 for the summons. The new case keeps the same docket number as the original support order, and the parent must arrange service of the complaint and summons on the other parent.
The process follows a clear sequence. First, the parent completes the Complaint for Contempt form (CJ-D 103), which the Massachusetts Probate and Family Court provides online and at every courthouse. Second, the parent files it with the clerk and obtains a Contempt Summons. Third, a deputy sheriff or constable serves the documents on the parent who owes support, and this service of process typically costs $50 to $75. Fourth, both parties appear at the scheduled hearing, where the judge decides whether contempt occurred and what remedy applies.
Parents who need help have several options that cost nothing. The Court Service Center and the Lawyer for the Day program at Probate and Family Court locations assist with completing the forms. Alternatively, a parent can ask the DOR Child Support Enforcement Division to file the contempt action on their behalf by calling 1-800-332-2733 or applying for DOR child support services online. The DOR route shifts the litigation burden to the state at no direct cost to the custodial parent, which makes it attractive for parents who cannot afford a private attorney. These fee and process details are current as of January 2026; confirm the summons fee with your local clerk.
Does Back Child Support Affect Your Passport?
Yes, a parent who owes $2,500 or more in back child support will be denied a U.S. passport, and as of 2026 the State Department actively revokes existing passports for delinquent obligors. Under federal law 42 U.S.C. § 652(k), the Massachusetts DOR certifies parents who cross the $2,500 arrears threshold to the federal Office of Child Support Enforcement, which forwards their names to the State Department.
The 2026 change marks a meaningful escalation. For years, the federal program only blocked new passport applications and renewals. Starting May 9, 2026, the State Department began revoking passports already in a delinquent parent's possession, meaning a parent who owes $2,500 or more can lose a valid passport mid-travel-season rather than merely being unable to obtain a new one. This affects international travel for work, family emergencies, and personal reasons alike.
The only way to resolve a passport block is to reduce the arrears below the $2,500 threshold or to negotiate a payment arrangement that satisfies the DOR, after which the DOR removes the certification. Because the federal certification process can take two to three weeks to reverse even after payment, a parent who needs a passport for upcoming travel should resolve the arrears well in advance. Paying down to just under $2,500 does not guarantee instant restoration, since the data must cycle through the federal and State Department systems before passport services resume.
When Does the Obligation to Pay Child Support End in Massachusetts?
Child support in Massachusetts does not automatically end at age 18, and the obligation can continue until a child turns 23 under Mass. Gen. Laws ch. 208 § 28 for married parents and Mass. Gen. Laws ch. 209C § 9 for unmarried parents. Even after the current support obligation ends, any accumulated back child support remains fully owed and enforceable with no statute of limitations.
Massachusetts uses age brackets to define the obligation. Between ages 18 and 21, a court may order support if the child lives in a parent's home and is principally dependent on that parent. Between ages 21 and 23, support may continue if the child lives at home and depends on a parent because of enrollment in an undergraduate educational program, though the statute excludes costs beyond an undergraduate degree. At age 23, the law treats the child as emancipated absent extraordinary circumstances, ending the prospective obligation.
The end of current support has no effect on arrears. When a child becomes emancipated, the parent stops accruing new support obligations, but every dollar of previously unpaid support survives as a collectible judgment. The DOR continues to pursue old arrears for years or decades after the child reaches adulthood, and the 12% interest plus 6% penalty keep accruing on the balance until it is paid in full. A parent cannot wait out child support arrears in Massachusetts; the debt does not expire.
FAQ: Back Child Support in Massachusetts
Is there a statute of limitations on back child support in Massachusetts?
No, Massachusetts imposes no statute of limitations on the enforcement of child support arrears. Under Mass. Gen. Laws ch. 119A § 13, each missed payment becomes a permanent judgment, and the DOR can collect the debt for the parent's entire lifetime, including decades after the child reaches adulthood.
Can a judge erase my child support arrears in Massachusetts?
No, a judge cannot erase accrued child support arrears in Massachusetts. Under Mass. Gen. Laws ch. 119A § 6, only the custodial parent can voluntarily forgive arrears owed to them, and the DOR may settle arrears owed to the Commonwealth under 830 CMR 119A.6.2. A court may reduce support only back to the date a modification complaint was served.
How much interest does Massachusetts charge on past due child support?
Massachusetts charges 12% annual interest plus a 6% annual penalty on arrears exceeding $500, totaling 18% per year. Under regulation 830 CMR 119A.6.1, that equals 0.5% interest and 0.5% penalty assessed monthly. A $10,000 arrears balance accrues roughly $100 per month in combined charges.
Will I lose my driver's license for owing child support in Massachusetts?
Yes, the DOR can suspend your driver's license once you fall 8 weeks in arrears, under Mass. Gen. Laws ch. 119A § 16. The RMV must comply with no discretion, and no hardship license is available. You receive 30 days' written notice to request a hearing before the suspension takes effect.
Can I go to jail for not paying child support in Massachusetts?
Yes, a Probate and Family Court can jail a parent for civil contempt if it finds the parent had the ability to pay and willfully refused. Inability to pay is a valid defense. A contempt judgment also carries 12% interest from the filing date and a presumption you will pay the other parent's legal fees.
Does back child support affect my passport in Massachusetts?
Yes, owing $2,500 or more in arrears triggers federal passport denial under 42 U.S.C. § 652(k). As of May 9, 2026, the State Department actively revokes existing passports, not just new applications. The Massachusetts DOR certifies your name to the federal Office of Child Support Enforcement once you cross the threshold.
What is the filing fee to enforce child support in Massachusetts?
There is no filing fee for a Complaint for Contempt in Massachusetts Probate and Family Court, though the court charges about $5 for the summons and service of process costs roughly $50 to $75. The DOR will file the contempt action for free if you request its services. These figures are current as of January 2026; verify with your local clerk.
Can back child support be modified if I lost my job?
No, you cannot retroactively reduce arrears that already accrued before you acted. Under Mass. Gen. Laws ch. 119A § 13, a court can lower support only back to the date you served a modification complaint. File a Complaint for Modification immediately after a job loss to stop additional non-reducible arrears from building.
Do child support arrears survive after my child turns 18?
Yes, all accumulated back child support survives after a child turns 18 or becomes emancipated. The current support obligation may end between ages 18 and 23 under Mass. Gen. Laws ch. 208 § 28, but unpaid arrears remain a collectible judgment with ongoing 12% interest and 6% penalty until paid in full.
Can I settle my child support arrears for less than I owe?
Sometimes. For arrears owed to the other parent, that parent may voluntarily accept a lump-sum settlement, but a court cannot force it. For arrears owed to the Commonwealth, the DOR may settle or adjust the balance under 830 CMR 119A.6.2. Contact the DOR Child Support Enforcement Division to explore eligibility.
Sources and Author
This guide was prepared by Antonio G. Jimenez, Esq. (Florida Bar No. 21022, covering Massachusetts divorce law). It reflects Massachusetts law and the 2025 Child Support Guidelines effective December 1, 2025, as researched in January 2026. Filing fees and procedures change; verify all fees with your local Probate and Family Court clerk and consult a licensed Massachusetts family law attorney before acting. This content is general legal information, not legal advice.