SD Family LawUpdated for 2026 Guidelines

South Dakota Parenting Time & Custody Overnight Calculator

Calculate custody overnights, determine annual percentage split, and verify statutory qualification for child support reductions under SDCL § 25-7-6.27.

Direct Answer · Custody Statutory Rule (2026)

In South Dakota: Parenting time directly reduces child support obligations when a non-custodial parent reaches 180 overnights per year (49.3% timeshare) under SDCL § 25-7-6.27. The court calculates relief using the shared responsibility cross-credit formula (sdcl § 25-7-6.27). Standard rotational schedules such as 2-2-3 (182 nights) qualify for full shared-custody adjustments.

Statutory Citation: SDCL § 25-7-6.27Judicial Authority: South Dakota 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%

⚠️South Dakota Statutory Threshold: 180 Nights (49.3%)

Below Threshold. Current schedule provides 52 overnights, which is 128 nights short of the 180-night threshold for South Dakota. Standard sole custody support applies without automatic time-sharing discount.

Statutory Legal Reference: SDCL § 25-7-6.27 — Shared Responsibility Cross-Credit Formula (SDCL § 25-7-6.27). In South Dakota, overnights are counted under the following rule: Under South Dakota law, shared responsibility requires that both parents share physical custody equally or nearly equally (at least 180 overnights).

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South Dakota Legal Guidelines on Custody Overnights

Statutory Threshold

180 Overnights

Equal to 49.3% of annual parenting time

Legal Methodology

Shared Responsibility Cross-Credit Formula (SDCL § 25-7-6.27)

Governed by SDCL § 25-7-6.27

Official Overnight Counting Rule in South Dakota

Under South Dakota law, shared responsibility requires that both parents share physical custody equally or nearly equally (at least 180 overnights).

Standard Default Possession Schedule

Alternating weekends, alternating holidays, and 4 weeks summer (~80–90 overnights).

Court Evidence & Verification Checklist for South Dakota

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

Document exact nights on an annual calendar.
Keep co-parenting communication records.
Save receipts for child supplies.

South Dakota Custody Overnights FAQ

What is South Dakota's shared responsibility rule?

Under SDCL § 25-7-6.27, shared responsibility child support applies only when parents share custody equally (at least 180 overnights each). The court cross-credits obligations.

Can South Dakota parents get a discount for 100 overnights?

No. South Dakota does not provide a formula discount for partial shared custody below 180 nights, though an abatement may apply for 28+ consecutive days in summer.

Data sources & methodology

South Dakota Statutory AuthoritySDCL § 25-7-6.27 — Official state guideline schedule and parenting time rules.
NCSL Custody GuidelinesNational Conference of State Legislatures — Shared Physical Custody and Parenting Time Models.
South Dakota 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.