VT Family LawUpdated for 2026 Guidelines

Vermont Parenting Time & Custody Overnight Calculator

Calculate custody overnights, determine annual percentage split, and verify statutory qualification for child support reductions under 15 V.S.A. § 657.

Direct Answer · Custody Statutory Rule (2026)

In Vermont: Parenting time directly reduces child support obligations when a non-custodial parent reaches 128 overnights per year (35% timeshare) under 15 V.S.A. § 657. The court calculates relief using the shared physical custody calculation (1.5x multiplier). Standard rotational schedules such as 2-2-3 (182 nights) qualify for full shared-custody adjustments.

Statutory Citation: 15 V.S.A. § 657Judicial Authority: Vermont Family Court GuidelinesLast Verified: October 2026

Parenting Time & Custody Overnight Calculator

Calculate annual overnights, time-sharing percentage, and state child support adjustment qualification.

Jurisdiction / State:

1. Select Parenting Schedule Pattern:

2 nights every other weekend across 26 fortnights = 52 overnights/yr (14.2%).

Summer Extra Nights:Additional summer block

Holiday Extra Nights:Thanksgiving / Winter break

Annual Time-Sharing Breakdown

Parent A (Non-Custodial)

52 nights

14.2%

Parent B (Primary)

313 nights

85.8%

Parent A: 14.2%Parent B: 85.8%

⚠️Vermont Statutory Threshold: 128 Nights (35%)

Below Threshold. Current schedule provides 52 overnights, which is 76 nights short of the 128-night threshold for Vermont. Standard sole custody support applies without automatic time-sharing discount.

Statutory Legal Reference: 15 V.S.A. § 657 — Shared Physical Custody Calculation (1.5x Multiplier). In Vermont, overnights are counted under the following rule: Under Vermont law, shared physical custody exists when each parent exercises at least 35% of the overnights per year (128 overnights).

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Vermont Legal Guidelines on Custody Overnights

Statutory Threshold

128 Overnights

Equal to 35% of annual parenting time

Legal Methodology

Shared Physical Custody Calculation (1.5x Multiplier)

Governed by 15 V.S.A. § 657

Official Overnight Counting Rule in Vermont

Under Vermont law, shared physical custody exists when each parent exercises at least 35% of the overnights per year (128 overnights).

Standard Default Possession Schedule

Alternating weekends, alternating holidays, and summer blocks (~85–95 overnights).

Court Evidence & Verification Checklist for Vermont

If you are requesting or defending against a child support reduction in Vermont family court based on shared physical care, prepare the following evidence:

Maintain an unbroken custody calendar.
Preserve daycare and school pickup sign-in records.
Save receipts for child supplies.

Vermont Custody Overnights FAQ

When does Vermont's shared custody formula apply?

Under 15 V.S.A. § 657, shared physical custody rules trigger when each parent has the child for at least 128 overnights (35%) per year.

How does Vermont calculate 50/50 custody child support?

The basic guideline amount is multiplied by 1.5, each parent's share is calculated, and payments are offset based on overnight percentages.

Data sources & methodology

Vermont Statutory Authority15 V.S.A. § 657 — Official state guideline schedule and parenting time rules.
NCSL Custody GuidelinesNational Conference of State Legislatures — Shared Physical Custody and Parenting Time Models.
Vermont Family Court RulesLocal standard possession schedules, overnight definitions, and administrative calculation forms.

Methodology and citations are maintained by the ChildSupportFig editorial team. Where an official guideline schedule is not yet loaded, results are shown as model estimates and the source is stated as a reference schedule.

Not legal or financial advice. Child support is determined by a court based on your state’s official worksheet. Online estimators provide an informal planning figure only. Laws change — always confirm the current guideline with your state child support agency or a licensed family law attorney in your state before relying on any number.