ID Family LawUpdated for 2026 Guidelines

Idaho Parenting Time & Custody Overnight Calculator

Calculate custody overnights, determine annual percentage split, and verify statutory qualification for child support reductions under Idaho Child Support Guidelines (I.R.F.L.P. 126 § 10(e)).

Direct Answer · Custody Statutory Rule (2026)

In Idaho: Parenting time directly reduces child support obligations when a non-custodial parent reaches 92 overnights per year (25% timeshare) under Idaho Child Support Guidelines (I.R.F.L.P. 126 § 10(e)). The court calculates relief using the shared physical custody schedule (cross-credit 1.5x). Standard rotational schedules such as 2-2-3 (182 nights) qualify for full shared-custody adjustments.

Statutory Citation: Idaho Child Support Guidelines (I.R.F.L.P. 126 § 10(e))Judicial Authority: Idaho 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%

⚠️Idaho Statutory Threshold: 92 Nights (25%)

Below Threshold. Current schedule provides 52 overnights, which is 40 nights short of the 92-night threshold for Idaho. Standard sole custody support applies without automatic time-sharing discount.

Statutory Legal Reference: Idaho Child Support Guidelines (I.R.F.L.P. 126 § 10(e)) — Shared Physical Custody Schedule (Cross-Credit 1.5x). In Idaho, overnights are counted under the following rule: An overnight requires the child to spend the night at the home of that parent. Shared custody calculations trigger at 25% or more of overnights (at least 92 nights).

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Idaho Legal Guidelines on Custody Overnights

Statutory Threshold

92 Overnights

Equal to 25% of annual parenting time

Legal Methodology

Shared Physical Custody Schedule (Cross-Credit 1.5x)

Governed by Idaho Child Support Guidelines (I.R.F.L.P. 126 § 10(e))

Official Overnight Counting Rule in Idaho

An overnight requires the child to spend the night at the home of that parent. Shared custody calculations trigger at 25% or more of overnights (at least 92 nights).

Standard Default Possession Schedule

Alternating weekends, one midweek overnight, alternating holidays, and 4 weeks in summer (~90–100 overnights).

Court Evidence & Verification Checklist for Idaho

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

Track continuous hours from Friday school pickup to Monday morning return.
Maintain pharmacy prescription records.
Keep co-parenting email/app communications.

Idaho Custody Overnights FAQ

When does shared physical custody apply in Idaho?

Under I.R.F.L.P. 126, shared physical custody rules apply when each parent exercises at least 25% of annual overnights (92 or more overnights).

How does Idaho calculate child support for 92+ overnights?

The basic guideline obligation is multiplied by 1.5 to reflect duplicated housing and utility costs, and then apportioned based on each parent's overnight percentage and income share.

Data sources & methodology

Idaho Statutory AuthorityIdaho Child Support Guidelines (I.R.F.L.P. 126 § 10(e)) — Official state guideline schedule and parenting time rules.
NCSL Custody GuidelinesNational Conference of State Legislatures — Shared Physical Custody and Parenting Time Models.
Idaho 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.