DE Family LawUpdated for 2026 Guidelines

Delaware Parenting Time & Custody Overnight Calculator

Calculate custody overnights, determine annual percentage split, and verify statutory qualification for child support reductions under Del. Fam. Ct. Civ. R. 505 (Melson Formula).

Direct Answer · Custody Statutory Rule (2026)

In Delaware: Parenting time directly reduces child support obligations when a non-custodial parent reaches 80 overnights per year (22% timeshare) under Del. Fam. Ct. Civ. R. 505 (Melson Formula). The court calculates relief using the melson formula shared care credit tier (10% to 50%). Standard rotational schedules such as 2-2-3 (182 nights) qualify for full shared-custody adjustments.

Statutory Citation: Del. Fam. Ct. Civ. R. 505 (Melson Formula)Judicial Authority: Delaware 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%

⚠️Delaware Statutory Threshold: 80 Nights (22%)

Below Threshold. Current schedule provides 52 overnights, which is 28 nights short of the 80-night threshold for Delaware. Standard sole custody support applies without automatic time-sharing discount.

Statutory Legal Reference: Del. Fam. Ct. Civ. R. 505 (Melson Formula) — Melson Formula Shared Care Credit Tier (10% to 50%). In Delaware, overnights are counted under the following rule: Overnights are counted where the child sleeps. Periods of care must involve full supervisory responsibility.

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Delaware Legal Guidelines on Custody Overnights

Statutory Threshold

80 Overnights

Equal to 22% of annual parenting time

Legal Methodology

Melson Formula Shared Care Credit Tier (10% to 50%)

Governed by Del. Fam. Ct. Civ. R. 505 (Melson Formula)

Official Overnight Counting Rule in Delaware

Overnights are counted where the child sleeps. Periods of care must involve full supervisory responsibility.

Standard Default Possession Schedule

Alternating weekends, one weekly dinner/overnight, alternating holidays, and extended summer weeks (~85–100 overnights).

Court Evidence & Verification Checklist for Delaware

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

Maintain an unbroken custody calendar.
Save receipts for school lunches and sports uniforms.
Keep medical provider sign-in sheets.

Delaware Custody Overnights FAQ

How does Delaware's Melson Formula handle parenting time?

Delaware grants shared care credits beginning at 80 overnights (approx. 22%). Credit scales up: 80–109 nights (10%), 110–139 nights (20%), 140–163 nights (30%), 164–174 nights (40%), and 175+ nights (50% equal split).

What is the primary support obligation in Delaware?

The Melson Formula first reserves a self-support allowance for each parent, establishes primary support per child, and then calculates a Standard of Living Adjustment (SOLA).

Data sources & methodology

Delaware Statutory AuthorityDel. Fam. Ct. Civ. R. 505 (Melson Formula) — Official state guideline schedule and parenting time rules.
NCSL Custody GuidelinesNational Conference of State Legislatures — Shared Physical Custody and Parenting Time Models.
Delaware 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.