Child support in Vermont ends when a child reaches age 18 or completes secondary education, whichever occurs later, under 15 V.S.A. § 658. Vermont follows a "whichever is later" standard, meaning a parent's obligation continues past the child's 18th birthday if the child remains enrolled in high school. Filing a motion to modify or terminate child support costs $45, and Vermont courts cannot order post-secondary education support unless both parents agree under 15 V.S.A. § 659. A child may also be emancipated as early as age 16 under 12 V.S.A. § 7151, which terminates the support obligation entirely.
Key Facts: Vermont Child Support Termination
| Factor | Details |
|---|---|
| Standard Termination Age | 18 or high school completion (whichever is later) — 15 V.S.A. § 658 |
| College Support | Not court-ordered; allowed only by parental agreement — 15 V.S.A. § 659 |
| Emancipation Age | 16+ with court approval — 12 V.S.A. § 7151 |
| Motion to Modify Fee | $45 — 32 V.S.A. § 1431 |
| Divorce Filing Fee | $295 (contested) / $90 (stipulated, resident) |
| Residency Requirement | 6 months to file; 1 year for final decree — 15 V.S.A. § 592 |
| Grounds for Divorce | No-fault (living apart 6+ months) |
| Support Calculation Model | Income Shares — 15 V.S.A. § 654 |
| Self-Support Reserve (2026) | $1,596/month |
| Modification Waiting Period | 3 years (or substantial change in circumstances) |
When Does Child Support End in Vermont Under State Law
Child support in Vermont terminates when a child turns 18 or graduates from high school, whichever event happens last, as specified in 15 V.S.A. § 658. Vermont imposes no upper age cap on this rule, so support continues as long as the child remains enrolled in secondary education. This "whichever is later" standard means a 19-year-old still completing high school remains eligible for child support.
Vermont's approach differs from neighboring states. In New Hampshire, child support ends at age 18 with no automatic high school extension. In Massachusetts, support may continue to age 23 if the child is enrolled in college. Connecticut terminates support at 18 unless the child is a full-time high school student, capping the extension at age 19. Vermont's open-ended secondary education provision provides broader protection for children who take nontraditional paths through high school.
The statutory language of 15 V.S.A. § 658 is clear: the obligation runs until "the later of" the two conditions. Neither parent needs to file a motion for support to end once both conditions are met. The obligation terminates automatically by operation of law. However, if arrears exist at the time of termination, the paying parent remains responsible for all unpaid amounts regardless of the child's age.
How Vermont Child Support Is Calculated
Vermont uses the Income Shares Model under 15 V.S.A. § 654, combining both parents' available incomes to determine a total support obligation that is then divided proportionally. The 2026 self-support reserve is $1,596 per month, and the presumed income figure used when a parent's earnings are unknown is $95,449.50 per year as of July 1, 2025.
The calculation follows a structured process under 15 V.S.A. § 656:
- Determine each parent's gross income from all sources
- Subtract allowable deductions: spousal support paid to a different household, preexisting child support obligations, FICA taxes (7.65% for employees, 15.3% for self-employed), and state and federal income taxes
- Combine both parents' available incomes into a single figure
- Look up the guideline amount in the support table prescribed by the Secretary of Human Services based on combined income and number of children
- Add extraordinary expenses including unreimbursed medical costs exceeding $200 per year per child, work-related childcare, and travel costs for parent-child contact
- Divide the total obligation between parents in proportion to their respective available incomes
- The noncustodial parent pays their calculated share to the custodial parent
Vermont law under 15 V.S.A. § 656a provides adjustments for shared physical custody arrangements. When a child spends more than 30% of overnights with the noncustodial parent, the court may apply the shared custody formula, which reduces the noncustodial parent's payment to reflect their direct expenditures during parenting time. The Vermont Office of Child Support provides an online calculator at dcf.vermont.gov/ocs/parents/calculator for preliminary estimates.
The Child Support Age 18 Rule and High School Completion
Vermont child support continues past age 18 if the child has not yet completed secondary education, with no statutory upper age limit under 15 V.S.A. § 658. A child who turns 18 in February but graduates high school in June remains eligible for support through the graduation date. Vermont courts interpret "completion of secondary education" to mean earning a diploma or its equivalent, not merely attending classes.
This rule creates specific obligations for both parents. The paying parent must continue monthly payments through the child's high school graduation even if the child has reached the age of majority. The receiving parent bears the responsibility to notify the paying parent and the court when the child completes secondary education. Failure to provide timely notice does not automatically entitle the paying parent to a refund of support paid after the triggering event, but the court has discretion to address overpayments.
If a child drops out of high school before turning 18, child support continues until the child's 18th birthday because the statute requires both conditions to be satisfied. A 17-year-old who leaves school remains eligible for support until age 18. Conversely, if that same child later re-enrolls and is still attending at age 18, support continues through completion.
Terminating Child Support Through Emancipation
A Vermont minor aged 16 or older may petition for emancipation under 12 V.S.A. § 7151, and a successful emancipation order terminates the parental child support obligation immediately. The petition must be filed in the Probate Division of Superior Court, and the minor must prove their case by clear and convincing evidence, a higher standard than the typical preponderance standard used in civil cases.
Vermont's emancipation statute under 12 V.S.A. §§ 7151-7160 requires the minor to satisfy all four of the following criteria:
- The minor has lived separate and apart from parents or guardians for at least 3 consecutive months
- The minor is managing their own financial affairs with demonstrated self-sufficiency through employment or other lawful means of support
- The minor has been a Vermont resident for at least 3 months preceding the petition
- The minor holds a high school diploma or GED, or is currently earning passing grades in an approved educational program
The court must additionally find that emancipation serves the best interests of the minor. Emancipation is not available to minors under age 16 under any circumstances. Once granted, the emancipated minor is treated as an adult for all legal purposes: the minor can enter contracts, establish an independent residence, and sue or be sued. Parents have no further financial obligation, and any existing child support order terminates upon entry of the emancipation decree.
Post-Secondary Education and Child Support in Vermont
Vermont courts cannot order either parent to pay for college or post-secondary education expenses under 15 V.S.A. § 659. Vermont is among approximately 26 states that do not authorize courts to compel college support. The only path to court-enforceable college support is voluntary agreement between both parents, which the court may then incorporate into the child support order.
This distinction matters for divorcing parents with college-bound children. If both parents agree during divorce proceedings or through a subsequent stipulation that each will contribute a specified percentage toward tuition, room, board, or other educational expenses, the court can include that agreement in the final order. Once incorporated, the obligation becomes enforceable like any other court order, including through contempt proceedings.
Parents negotiating divorce settlements should address college costs explicitly. Common approaches include specifying a dollar cap per year, limiting support to in-state public university tuition rates, requiring the child to maintain a minimum GPA, or setting a maximum number of semesters. Without a written agreement addressing these details, neither parent has any legal obligation to contribute to post-secondary education once child support ends under 15 V.S.A. § 658.
| Factor | Vermont | Massachusetts | New Hampshire | Connecticut |
|---|---|---|---|---|
| Standard End Age | 18 | 18 | 18 | 18 |
| High School Extension | Yes, no age cap | Yes, to age 19 | No | Yes, to age 19 |
| College Support | By agreement only | Court-ordered to age 23 | No | No |
| Emancipation Minimum Age | 16 | No statute | No statute | 16 |
| Disability Exception | Case law (onset during minority) | Statutory | Statutory | Statutory |
How to Modify or Terminate Child Support in Vermont
Filing a motion to modify child support in Vermont costs $45 under 32 V.S.A. § 1431, and either parent may file when a real, substantial, and unanticipated change of circumstances exists under 15 V.S.A. § 660. If the existing order has been in place for 3 or more years, the court may waive the change-of-circumstances requirement entirely, allowing modification based solely on updated income figures.
The modification process follows these steps:
- File a motion to modify with the Family Division of Superior Court, paying the $45 filing fee
- Attach a sworn affidavit with updated income information and child support calculations demonstrating the basis for modification
- Serve the motion on the other parent in accordance with court rules
- The magistrate reviews the filing and, if the calculations demonstrate cause, enters a modified order
- Either party may request a hearing within 15 days of being served with the modified order
- The court must hold the hearing within 20 days of the request
Vermont law prohibits retroactive modification of child support. Under 15 V.S.A. § 660, any modification applies only to future installments and to installments that accrued after the date of service of the modification motion. Arrears that accumulated before the motion was filed cannot be reduced, even if the paying parent experienced a significant income loss during that period.
The Vermont Office of Child Support (OCS) may also initiate modification proceedings without a motion from either parent. OCS can file when a parent will be incarcerated for 90 or more days, when the family has reunited, when the child no longer resides with the receiving parent, or when either party begins receiving means-tested public benefits.
Disability and Special Circumstances That Extend Support
Vermont courts recognize a common law duty requiring parents to support adult children who are unable to support themselves due to a disability that had its onset during minority, meaning before the child turned 18. This obligation is not codified in a specific statute but is established through Vermont case law as an extension of the parental support duty.
To obtain continued support for a disabled adult child, the custodial parent must file a motion demonstrating that the child's disability prevents self-support and that the disabling condition began before age 18. The court evaluates the child's functional capacity, the nature and severity of the disability, the availability of public benefits such as Supplemental Security Income (SSI) or Social Security Disability Insurance (SSDI), and each parent's financial ability to contribute. Vermont courts retain jurisdiction over these matters indefinitely when the disability onset occurred during minority.
Other special circumstances that may affect the duration of child support include military deployment of the paying parent, which may warrant temporary modification but does not terminate the obligation, and incarceration, which since 2024 is increasingly recognized nationally as a basis for modification rather than an excuse for nonpayment. Vermont's OCS can initiate modification when a parent faces 90 or more days of incarceration under 15 V.S.A. § 660.
Child Support Arrears and Enforcement After Termination
Child support arrears do not expire when the child turns 18 or completes high school in Vermont. The paying parent remains legally obligated to pay all accumulated past-due amounts regardless of the child's current age. Vermont treats child support arrears as a judgment debt, and the Office of Child Support has extensive enforcement tools available including wage garnishment of up to 65% of disposable earnings, interception of federal and state tax refunds, suspension of driver's licenses and professional licenses, passport denial for arrears exceeding $2,500, liens on real property and bank accounts, and contempt of court proceedings carrying potential jail time.
The Vermont OCS collects support on behalf of custodial parents and maintains an active enforcement caseload. In federal fiscal year 2024, Vermont collected over $68 million in child support payments across approximately 16,000 cases. The state's collection rate consistently exceeds the national average. Interest does not automatically accrue on child support arrears in Vermont, but the court may impose interest in its discretion.
Parents who owe arrears cannot petition to reduce the past-due balance through modification. The prohibition on retroactive modification under 15 V.S.A. § 660 means that once support installments become due, they are fixed obligations. The only remedy for a parent who has experienced a genuine inability to pay is to seek prospective modification promptly, before arrears accumulate further.
Vermont Residency Requirements for Divorce and Child Support
To file for divorce in Vermont, at least one spouse must have resided in the state for 6 months under 15 V.S.A. § 592, and a final divorce decree requires 1 year of residency by either the plaintiff or defendant preceding the date of the final hearing. Temporary absences for illness, employment, or military service do not break the residency period as long as the person maintained Vermont as their legal domicile.
Vermont offers a non-resident filing exception for couples whose marriage is not recognized for divorce purposes in their home state. Both parties may file jointly in Vermont if neither party's state will grant a divorce, no minor children were born or adopted during the marriage, and the parties file a stipulation resolving all issues. The stipulated divorce filing fee for non-residents is $180, compared to $90 for residents filing with a stipulation under 32 V.S.A. § 1431.
For child support modification, the Uniform Interstate Family Support Act (UIFSA) governs jurisdiction when parents live in different states. Generally, the state that issued the original child support order retains exclusive continuing jurisdiction as long as either parent or the child continues to reside there. If all parties have left Vermont, jurisdiction may shift to the child's current state of residence.
Frequently Asked Questions
At what age does child support end in Vermont?
Child support in Vermont ends at age 18 or upon completion of high school, whichever occurs later, under 15 V.S.A. § 658. Vermont imposes no upper age cap on the high school extension. If a child turns 18 in March but graduates in June, the paying parent must continue support through graduation. The obligation terminates automatically once both conditions are met.
Can a Vermont court order a parent to pay for college?
No. Vermont courts lack authority to order post-secondary education support under 15 V.S.A. § 659. College support is enforceable only if both parents voluntarily agree and the court incorporates that agreement into the child support order. Approximately 26 states share Vermont's approach of prohibiting court-ordered college support.
How much does it cost to file a child support modification in Vermont?
Filing a motion to modify child support in Vermont costs $45 under 32 V.S.A. § 1431. As of March 2026, verify this amount with your local clerk. Fee waivers are available for parents who demonstrate financial hardship through an in forma pauperis application. Prejudgment motions filed before a final order carry no filing fee.
What qualifies as grounds to modify child support in Vermont?
Vermont requires a "real, substantial, and unanticipated change of circumstances" to modify child support under 15 V.S.A. § 660. Common qualifying changes include job loss, significant income increase or decrease exceeding 10%, remarriage affecting household finances, a child's changed medical needs, or relocation affecting custody arrangements. If the order is 3 or more years old, the change-of-circumstances requirement may be waived.
Can a 16-year-old be emancipated in Vermont to end child support?
Yes. Vermont permits emancipation petitions from minors aged 16 or older under 12 V.S.A. § 7151. The minor must prove by clear and convincing evidence that they have lived independently for 3 months, manage their own finances, hold a diploma or maintain passing grades, and have resided in Vermont for 3 months. A successful emancipation order terminates child support immediately.
Does child support in Vermont continue if a child drops out of high school?
Child support continues until the child turns 18 even if the child drops out of high school. Under 15 V.S.A. § 658, both conditions must be satisfied: the child must reach age 18 and must have completed (or ceased pursuing) secondary education. A 17-year-old dropout remains eligible for support until their 18th birthday.
Can child support arrears be forgiven after a child turns 18 in Vermont?
No. Child support arrears survive the child's 18th birthday and high school completion. Vermont prohibits retroactive modification of past-due support under 15 V.S.A. § 660. The Office of Child Support enforces arrears through wage garnishment (up to 65% of disposable earnings), tax refund interception, license suspension, passport denial for arrears exceeding $2,500, and contempt proceedings.
How does shared custody affect child support duration in Vermont?
Shared custody does not change when child support ends in Vermont. The termination date remains age 18 or high school completion under 15 V.S.A. § 658 regardless of custody arrangement. However, shared custody does affect the support amount. Under 15 V.S.A. § 656a, when a child spends more than 30% of overnights with the noncustodial parent, the court applies the shared custody formula, which typically reduces the monthly payment.
What happens to child support if a parent moves out of Vermont?
The Uniform Interstate Family Support Act (UIFSA) governs interstate child support when a parent relocates. Vermont retains exclusive continuing jurisdiction over its child support orders as long as either parent or the child remains in Vermont. The out-of-state parent can still petition Vermont courts for modification. If all parties leave Vermont, jurisdiction may transfer to the child's state of residence.
Does Vermont extend child support for disabled adult children?
Vermont courts recognize a common law obligation for parents to support adult children with disabilities that originated before age 18. This duty is not codified by statute but is established through case law. The custodial parent must demonstrate that the disability prevents the adult child from achieving self-support and that the condition began during minority. Courts consider the child's functional capacity, disability severity, public benefit eligibility, and each parent's ability to contribute.
Reviewed by Antonio G. Jimenez, Esq. — Florida Bar No. 21022
Filing fees verified as of March 2026. Verify current amounts with your local clerk.