SettleCompass logo
SC

State alimony comparison

New York vs South Dakota Alimony Laws

Compare New York and South Dakota alimony rules, formulas, duration limits, eligibility requirements, modification standards, and court discretion.
Reviewed by SettleCompass Research TeamUpdated June 2026Comparison guide
Educational content only

Recommended workflow

Compare the rules, then test the same facts in each state.

Start with the legal differences below, run one shared estimate scenario, then open each state guide for the detailed framework courts may apply.

Quick Comparison

Use this side-by-side data view as a starting point, then review the linked state law guides and calculators for deeper planning context.

FactorNew YorkSouth Dakota
Support termmaintenancealimony
Formula profilestatutorydiscretionary
Property systemequitableequitable
Legal frameworkTemporary maintenance during divorce proceedings is calculated using statutory formulas established in Domestic Relations Law § 236(B)(5-a). Post-divorce maintenance is governed by § 236(B)(6), where courts apply statutory formulas, duration advisory ranges, and deviation factors before entering a final award.Temporary alimony may be awarded while the divorce action is pending under S.D. Codified Laws § 25-4-38. Final alimony is governed by § 25-4-41 and is determined through judicial discretion rather than a fixed calculation.
Statute citationNew York Domestic Relations Law § 236(B)(5-a) (temporary maintenance) and § 236(B)(6) (post-divorce maintenance)S.D. Codified Laws §§ 25-4-38, 25-4-40, 25-4-41, and 25-4-42

Best for

Relocation planning, negotiation prep, and state-by-state estimate checks.

Use with

New York and South Dakota calculators for same-fact estimates.

Remember

Support outcomes still depend on judge discretion, facts, and local procedure.

Same-facts estimate

Compare estimated support with one scenario

Use the same income and marriage facts to see how the planning estimate changes between New York and South Dakota. This is educational, not a court prediction.

New York

Guideline maintenance estimate using New York's higher formula: 30% of payer income minus 20% of recipient income, capped so the recipient does not receive more than 40% of combined income after maintenance. If the maintenance payer is also the noncustodial parent paying child support, New York uses a lower formula: 20% of payer income minus 25% of recipient income.

Moderate

$2,000/mo

Planning range: $1,600-$2,400/mo

Duration: About 3 years

South Dakota

Conservative educational estimate based on need, ability to pay, income disparity, marriage length, earning capacity, post-divorce financial condition, age, health, marital standard of living, property division, and South Dakota equitable factors; no mandatory statewide formula applies.

Lower

$1,400/mo

Planning range: $910-$1,890/mo

Duration: Medium to long marriage

South Dakota relies heavily on court discretion or limited eligibility rules, so this estimate should be treated as a broad planning range.

Key Differences

Calculation

New York: New York uses statutory guideline formulas for temporary and post-divorce maintenance on the payor's income up to the statutory income cap. The formulas are presumptive guideline calculations, but courts may adjust or deviate if the guideline amount is unjust or inappropriate after considering statutory factors. Maintenance above the income cap is discretionary. South Dakota: Conservative educational estimate based on need, ability to pay, income disparity, marriage length, earning capacity, post-divorce financial condition, age, health, marital standard of living, property division, and South Dakota equitable factors; no mandatory statewide formula applies.

Duration

New York: New York uses a nonmandatory advisory duration schedule for post-divorce maintenance. For marriages up to and including 15 years, guideline duration is generally 15% to 30% of the marriage length. For marriages over 15 years and up to 20 years, guideline duration is generally 30% to 40% of the marriage length. For marriages over 20 years, guideline duration is generally 35% to 50% of the marriage length. Temporary maintenance lasts only while the divorce case is pending. South Dakota: South Dakota has no fixed statutory duration formula. Temporary alimony may be awarded while the divorce is pending. Post-divorce alimony may be rehabilitative, restitutional, permanent, or another equitable form depending on the facts. Rehabilitative support may be time-limited and tied to education, training, or self-support. Permanent or longer-term support may be possible where age, disability, health, or long-term dependency prevents self-support, but it is not automatic.

Modification

New York: Maintenance orders may be modified when statutory standards for modification are satisfied, including qualifying changes in circumstances. Separation agreements and judgments may contain additional provisions affecting modification rights. South Dakota: South Dakota alimony may be modified when a substantial change in circumstances justifies review, depending on the award type and decree terms. Courts evaluate changes affecting need, income, earning capacity, health, or ability to pay.

State Profiles

New York

New York uses the term maintenance for spousal support and employs statutory formulas that provide presumptive maintenance amounts in many cases. Courts begin with the statutory calculation but may deviate when the formula would be unjust or inappropriate after considering statutory factors. Maintenance awards are intended to address economic disparities created by the marriage and divorce.

Eligibility: A spouse may qualify for maintenance when there is a demonstrated economic disparity and the statutory analysis supports an award. Courts review the parties' incomes, property distribution, future earning potential, and financial circumstances. Qualification does not require fault and is evaluated under the statutory framework.

South Dakota

South Dakota authorizes alimony when a divorce is granted and permits the court to require one spouse to make a suitable allowance for the other's support. The state does not use a mandatory statewide formula. Courts rely on discretionary factors such as marriage length, earning capacity, financial condition, age, health, social standing, and fault-related responsibility for the breakup.

Eligibility: A spouse may qualify if the court finds support suitable after reviewing the parties' financial and personal circumstances. South Dakota courts consider marriage length, earning ability, property division, age, health, social standing, and fault or responsibility for the divorce. Eligibility depends on equity rather than a strict income threshold.

Duration, Eligibility, and Modification

Duration Comparison

  • New York: 0-5 years, 5-20 years, 20 years to potentially non-durational
  • South Dakota: 0-5 years, 5-20 years, 20 years to potentially permanent alimony

Eligibility Comparison

  • New York: A spouse may qualify for maintenance when there is a demonstrated economic disparity and the statutory analysis supports an award. Courts review the parties' incomes, property distribution, future earning potential, and financial circumstances. Qualification does not require fault and is evaluated under the statutory framework.
  • South Dakota: A spouse may qualify if the court finds support suitable after reviewing the parties' financial and personal circumstances. South Dakota courts consider marriage length, earning ability, property division, age, health, social standing, and fault or responsibility for the divorce. Eligibility depends on equity rather than a strict income threshold.

Modification Comparison

  • New York: Maintenance orders may be modified when statutory standards for modification are satisfied, including qualifying changes in circumstances. Separation agreements and judgments may contain additional provisions affecting modification rights.
  • South Dakota: South Dakota alimony may be modified when a substantial change in circumstances justifies review, depending on the award type and decree terms. Courts evaluate changes affecting need, income, earning capacity, health, or ability to pay.

New York vs South Dakota Alimony FAQ

Why compare New York and South Dakota alimony laws?+

Alimony rules vary by state. Comparing two states helps readers understand differences in formulas, duration ranges, eligibility rules, modification standards, and judicial discretion before deeper research.

Are these comparison pages legal advice?+

No. SettleCompass comparison pages are educational planning resources only and do not replace advice from a licensed family law attorney.

Can the same income produce different alimony estimates by state?+

Yes. State formulas, income caps, duration rules, statutory factors, and judge discretion can produce different outcomes from the same basic facts.

What to review next

Compare Estimates With the Calculator

Use state-specific calculator pages to model the same income and marriage-length assumptions across both states.