FL Family LawUpdated for 2026 Guidelines

Florida Parenting Time & Custody Overnight Calculator

Calculate custody overnights, determine annual percentage split, and verify statutory qualification for child support reductions under Fla. Stat. § 61.30(11)(b).

Direct Answer · Custody Statutory Rule (2026)

In Florida: Parenting time directly reduces child support obligations when a non-custodial parent reaches 73 overnights per year (20% timeshare) under Fla. Stat. § 61.30(11)(b). The court calculates relief using the substantial presence "gross-up" formula (1.5x multiplier). Standard rotational schedules such as 2-2-3 (182 nights) qualify for full shared-custody adjustments.

Statutory Citation: Fla. Stat. § 61.30(11)(b)Judicial Authority: Florida 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%

⚠️Florida Statutory Threshold: 73 Nights (20%)

Below Threshold. Current schedule provides 52 overnights, which is 21 nights short of the 73-night threshold for Florida. Standard sole custody support applies without automatic time-sharing discount.

Statutory Legal Reference: Fla. Stat. § 61.30(11)(b) — Substantial Presence "Gross-Up" Formula (1.5x Multiplier). In Florida, overnights are counted under the following rule: A night counts as an overnight if the child sleeps at that parent's residence for at least 12 hours. Reaching 73 overnights (20%) mandates the statutory gross-up formula.

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Florida Legal Guidelines on Custody Overnights

Statutory Threshold

73 Overnights

Equal to 20% of annual parenting time

Legal Methodology

Substantial Presence "Gross-Up" Formula (1.5x Multiplier)

Governed by Fla. Stat. § 61.30(11)(b)

Official Overnight Counting Rule in Florida

A night counts as an overnight if the child sleeps at that parent's residence for at least 12 hours. Reaching 73 overnights (20%) mandates the statutory gross-up formula.

Standard Default Possession Schedule

Every other weekend (Friday to Sunday) plus one weekday evening and alternating holidays (~70–80 overnights).

Court Evidence & Verification Checklist for Florida

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

Track overnights meticulously because crossing from 72 to 73 nights causes an immediate and dramatic drop in child support.
Preserve text messages confirming exact drop-off and pick-up times.
Log doctor visits, school events, and extracurricular activities attended.

Florida Custody Overnights FAQ

What is Florida's 73-night child support rule?

Under Fla. Stat. § 61.30(11)(b), if a non-custodial parent spends at least 73 overnights (20% of the year) with the child, the court MUST apply the "Gross-Up" method, which multiplies basic support by 1.5 and allocates it across overnight percentages, significantly lowering payments.

What happens if a parent fails to exercise 73 nights after a Florida court order?

Fla. Stat. § 61.30(11)(c) allows the primary parent to seek retroactive modification and attorney's fees if the paying parent fails to exercise the ordered 73+ overnights.

Data sources & methodology

Florida Statutory AuthorityFla. Stat. § 61.30(11)(b) — Official state guideline schedule and parenting time rules.
NCSL Custody GuidelinesNational Conference of State Legislatures — Shared Physical Custody and Parenting Time Models.
Florida 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.