Vermont Child Support Calculator (2025)

Estimate your Vermont child support obligation using the Income Shares model under 15 V.S.A. §656. Enter both parents' income, number of children, and additional expenses for a guideline estimate.

15 V.S.A. §656 Free & Instant 2025 Guidelines
Updated 2025 — Vermont 15 V.S.A. §656 Guidelines

Vermont Child Support Calculator

Uses Vermont Income Shares model — 15 V.S.A. §656


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Vermont 15 V.S.A. §656 Guideline Child Support
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Income Shares — 15 V.S.A. §656
Calculation Breakdown
Payment Summary
Monthly Support$0
Annual Support$0
Weekly Equivalent$0
This estimate is based on Vermont guidelines and is for informational purposes only. Actual court-ordered support may differ. Consult a Vermont family law attorney for accurate calculations.

How Vermont Calculates Child Support

Vermont uses the Income Shares model for calculating child support, governed by 15 V.S.A. §656. This model is based on the economic principle that children should receive the same proportion of parental income they would have received if their parents lived together. The Income Shares approach is the most widely used child support model in the United States, and Vermont's implementation includes several state-specific provisions.

Under Vermont's system, the court determines each parent's income, combines those figures, and consults the guidelines schedule to find the basic child support obligation based on combined available income and number of children. Each parent's proportionate share is determined by their percentage of combined income. Additional costs for health insurance, childcare, and extraordinary expenses are added and divided proportionally.

The Vermont guidelines create a rebuttable presumption that the calculated amount is the correct child support obligation. Courts can deviate only with specific written findings explaining why the guideline amount is unjust or inappropriate.

History and Legislative Background

Vermont's child support guidelines are established under 15 V.S.A. §656 (Title 15, Vermont Statutes Annotated). Vermont adopted the Income Shares model in 1989. The guidelines have been updated periodically, with significant revisions in 2006 and 2014. Vermont uses the concept of available income, which is similar to net income but with Vermont-specific deductions.

Vermont uses the term available income rather than gross or net income. Available income is calculated by starting with gross income and subtracting federal and state taxes, FICA, mandatory retirement, and a self-support reserve. Vermont also has a distinctive minimum support order to ensure all non-custodial parents contribute something toward their children's support.

Understanding 15 V.S.A. §656

15 V.S.A. §656 is the cornerstone of child support calculations in Vermont. This comprehensive law establishes the framework that judges, attorneys, and parents must follow when determining child support obligations. 15 V.S.A. §656 establishes the calculation methodology and schedule. Section 657 addresses deviations, and Section 660 covers modifications. Vermont's guidelines are supplemented by detailed administrative rules published by the Office of Child Support.

Vermont Basic Support Formula
Each Parent's Share = (Parent Income / Combined Income) × Basic Obligation

The basic obligation is found in the Vermont schedule based on combined available income and number of children

The calculation follows a systematic approach: (1) determine each parent's gross income, (2) subtract permitted deductions, (3) combine adjusted incomes, (4) look up the basic obligation in the schedule, (5) calculate each parent's percentage share, (6) determine each parent's dollar share of the obligation, and (7) allocate additional expenses proportionally.

Step 1: Determine Income

Calculate each parent's monthly income from all sources, applying permitted deductions to find adjusted income.

Step 2: Combine Incomes

Add both parents' adjusted incomes to establish the combined figure for the schedule lookup.

Step 3: Find Basic Obligation

Use the Vermont schedule to determine the basic support obligation based on combined income and number of children.

Step 4: Calculate Each Share

Each parent's share equals their income percentage multiplied by the basic obligation, plus proportionate additional expenses.

The Income Shares Model in Vermont

Vermont's adoption of the Income Shares model reflects a commitment to ensuring children benefit from both parents' financial resources. Economic research demonstrates that in intact families, both parents contribute to child-rearing costs in proportion to their incomes. The Income Shares model seeks to replicate this dynamic when parents live apart.

The model estimates what parents would collectively spend on their children if they shared a household. This estimate, the basic child support obligation, is derived from the Vermont schedule based on economic data from the U.S. Department of Agriculture and other research on child-rearing expenditures. The obligation is then divided between parents based on their proportionate shares of combined income.

Unlike the Percentage of Income model used in some states (which considers only the non-custodial parent's income), the Income Shares model examines both parents' financial positions. This prevents inequitable results when one parent earns significantly more or less than the other, and ensures children of higher-income families receive support commensurate with the family's overall standard of living.

Vermont Income Explained

Understanding what constitutes income under Vermont child support law is essential for accurate calculations. Vermont uses combined available income as the basis for determining the support obligation.

What Counts as Income in Vermont

  • Wages, salaries, and tips from all employment sources
  • Commissions, bonuses, and overtime averaged over a reasonable period
  • Self-employment income after legitimate business expenses
  • Rental and royalty income from property and natural resources
  • Interest, dividends, and investment income
  • Pension, retirement, and annuity payments
  • Social Security benefits of all types
  • Workers' compensation and disability benefits
  • Unemployment compensation
  • Alimony received from other relationships
  • Trust income and estate distributions
  • Military pay and allowances
  • Severance pay and strike benefits
  • Capital gains from sale of assets

Allowable Deductions

  • Federal, state, and local income taxes
  • FICA taxes (Social Security and Medicare)
  • Mandatory retirement contributions required by employer
  • Pre-existing child support orders actually being paid
  • Pre-existing alimony obligations under court order
  • Mandatory union dues (where applicable)

Imputation of Income

Vermont courts may impute income to a parent who is voluntarily unemployed or underemployed. The court considers the parent's age, education, work experience, health, available jobs in the community, and prior earnings history. Imputation prevents a parent from artificially reducing their support obligation by choosing not to work or accepting employment below their capacity. Courts will not impute income to parents with documented disabilities or those caring for very young children where childcare costs would exceed potential earnings.

The Vermont Support Schedule

The Vermont child support guidelines schedule lists base monthly support obligations for various levels of combined available income and different numbers of children. Below is a representative excerpt:

Combined Available Income1 Child2 Children3 Children4 Children5 Children
$1,500$300$450$537$595$643
$2,500$463$695$829$919$993
$3,500$603$905$1,081$1,198$1,294
$5,000$782$1,173$1,400$1,551$1,676
$7,000$984$1,476$1,762$1,953$2,111
$10,000$1,238$1,857$2,216$2,456$2,654
$12,500$1,425$2,138$2,551$2,826$3,054
$15,000$1,590$2,385$2,847$3,155$3,410

The schedule amounts represent the estimated total cost of raising children at each income level, derived from economic research. As income rises, the obligation increases but at a decreasing marginal rate. For incomes above the schedule maximum, courts typically extrapolate or exercise discretion based on the children's demonstrated needs.

How to Read the Schedule

Locate the row closest to the parents' combined available income. If the exact amount does not appear, interpolate between the two nearest values. Then look across to the column for the number of children. The result is the base child support obligation to be divided between parents proportionally.

Shared Custody Adjustments

Vermont recognizes that shared physical custody arrangements require modified support calculations. Vermont applies shared physical custody adjustments when both parents have substantial and nearly equal physical custody. While not defined by a specific overnight threshold, courts typically apply the shared formula when each parent has at least 30% of overnights. The formula multiplies the base obligation by 1.5 and offsets each parent's share.

The Shared Custody Calculation

  1. Calculate the base child support obligation using the standard schedule
  2. Multiply the base obligation by 1.5 to account for duplicated household costs
  3. Determine each parent's proportionate share based on income percentage
  4. Multiply each parent's share by the percentage of time the child spends with the other parent
  5. Offset the two amounts; the parent with the higher obligation pays the difference

This adjustment prevents the inequitable result that would occur if the standard formula were applied to shared custody, where both parents bear significant direct costs. The multiplier acknowledges increased total household costs when a child maintains two primary residences.

When Courts Deviate from Guidelines

While Vermont's guidelines establish a presumptive correct amount, courts retain discretion to deviate when strict application would produce an unjust result. Any deviation requires specific written findings of fact.

Common grounds for deviation include:

  • Extraordinary medical or dental expenses for a child with special healthcare needs
  • Special educational expenses including private school or tutoring
  • Travel costs for long-distance visitation
  • Seasonal or variable income making standard calculations unreliable
  • Combined income exceeding the schedule maximum
  • Extraordinary tax consequences
  • A child's independent income or resources
  • Substantial debt from the marriage for family necessities
  • In-kind contributions offsetting the support obligation

Courts exercise deviation authority sparingly. Data indicates deviations occur in fewer than 15% of cases, underscoring the strength of the guideline presumption.

How to Modify Child Support in Vermont

Child support orders in Vermont can be modified when there has been a real, substantial, and unanticipated change of circumstances. Vermont does not specify a fixed percentage but evaluates whether the change is genuine and significant.

Common grounds for modification include:

  • Significant change in either parent's income
  • Involuntary job loss or reduction in hours
  • Change in custody or parenting time arrangement
  • A child reaching majority or becoming emancipated
  • Change in the child's medical or educational needs
  • Significant change in health insurance or childcare costs

The Modification Process

File a motion to modify with the court that issued the original order. Provide current financial documentation. Both parents will exchange updated income information. Most uncontested modifications are completed within 60 to 120 days. Modifications are effective from the filing date, not retroactively, so parents experiencing changes should file promptly.

Enforcement of Vermont Child Support

Vermont's child support enforcement is handled through the Vermont Office of Child Support (OCS) within the Department for Children and Families.

Enforcement tools include:

  • Income withholding/wage garnishment: Standard method for all orders
  • Contempt of court: Fines and imprisonment for willful non-payment
  • License suspension: Driver's, professional, and recreational licenses
  • Tax refund interception: Both state and federal refunds
  • Property liens: Real estate, vehicles, and financial accounts
  • Credit bureau reporting: Mandatory reporting of past-due amounts
  • Passport denial: For arrearages over $2,500
  • Bank account seizure: Freezing and seizing funds

Vermont participates in the Uniform Interstate Family Support Act (UIFSA) for interstate enforcement. Past-due support accrues 12% per annum on child support arrearages. The state collects approximately $65 million in child support annually.

Duration of Child Support in Vermont

In Vermont, child support continues until the child reaches age 18, or high school graduation if the child turns 18 during senior year. Support may terminate earlier if the child marries, enlists in the military, or is legally emancipated. For children with significant disabilities preventing self-support, courts may order continued support beyond the standard age. Each case is evaluated individually based on the child's specific circumstances and needs.

Tax Implications

Under current federal tax law, child support payments are not tax-deductible for the paying parent and are not taxable income for the receiving parent. The dependency exemption for children of separated parents is generally claimed by the custodial parent unless released via IRS Form 8332. Vermont courts sometimes address exemption allocation as part of the overall support determination.

Frequently Asked Questions

How does Vermont calculate child support?

Vermont uses the Income Shares model under 15 V.S.A. §656. Both parents' incomes are combined and checked against a guideline schedule. Each parent's share is proportional to their income percentage. Additional costs for health insurance, childcare, and extraordinary expenses are allocated proportionally. The non-custodial parent pays their share to the custodial parent.

What income counts for Vermont child support?

Vermont considers income from all sources including wages, salaries, commissions, bonuses, self-employment, rental, investment, pension, Social Security, unemployment, and workers' compensation. Allowable deductions include taxes, FICA, mandatory retirement, and pre-existing support orders.

How does shared custody affect Vermont child support?

When each parent has significant physical custody time (shared physical rights), the shared custody formula applies. The base obligation is adjusted for duplicated household costs, each parent's share is calculated, and obligations are offset. The parent with the higher net amount pays the difference.

When does child support end in Vermont?

Vermont child support generally continues until the child reaches age 18, or high school graduation if the child turns 18 during senior year. It may end earlier for marriage, military enlistment, or emancipation. Support may continue for disabled children unable to become self-supporting.

How do I modify child support in Vermont?

File a motion to modify with the court that issued the original order. You need a real, substantial, and unanticipated change of circumstances. Vermont does not specify a fixed percentage but evaluates whether the change is genuine and significant. Common grounds include income changes, job loss, custody changes, and changes in the child's needs. Modifications are effective from the filing date.

What happens if I don't pay Vermont child support?

Vermont enforces child support through wage withholding, contempt of court, license suspension, tax refund interception, property liens, credit reporting, passport denial, and bank seizure. Arrearages accrue 12% per annum on child support arrearages.

What is the minimum child support in Vermont?

Vermont does not set a specific statutory minimum. The guidelines schedule provides amounts from very low combined income levels. Courts generally will not set support at zero unless the parent is genuinely unable to earn income due to disability or incarceration.

Other State Child Support Calculators

Child support laws vary significantly by state. If you need to calculate child support in another state, use one of our other free calculators:

Legal Disclaimer: This calculator provides estimates based on Vermont child support guidelines under 15 V.S.A. §656 and is for informational purposes only. It does not constitute legal advice. Child support calculations involve many factors this simplified calculator cannot fully account for. Always consult a qualified Vermont family law attorney. Fine Content Limited is not a law firm and does not provide legal services.