Spousal Support in South Dakota: Rules, Types, and Factors

South Dakota does not use a statutory formula or calculator to determine alimony. Under SDCL § 25-4-41, judges have full discretion to award support based on the requesting party's financial need and the other party's ability to pay — balancing six factors established through decades of case law.

There Is No Official Calculator

Unlike child support (which uses a statutory worksheet), spousal support in South Dakota is entirely discretionary. No calculator, no percentage, no statutory guideline. This means:

• The amount varies enormously from case to case
• Outcomes depend heavily on which judge you draw and how well you present your financial picture
• Negotiated settlements are common because neither party can predict with certainty what a judge would award

Family law practitioners sometimes use an informal baseline for temporary support during proceedings:

Temporary support estimate = (40% × higher income) − (50% × lower income)

Example: If the higher-earning spouse makes $8,000/month gross and the lower earner makes $2,000/month: (0.40 × $8,000) − (0.50 × $2,000) = $3,200 − $1,000 = $2,200/month

This is a negotiation starting point, not a legal formula. Courts are not bound by it.

The Six Factors Judges Evaluate

Courts weigh these factors together — no single factor is determinative:

1. Length of the marriage. Longer marriages produce longer or permanent support. A 3-year marriage rarely results in ongoing alimony; a 25-year marriage where one spouse sacrificed career development frequently does.

2. Earning capacity of each spouse. Current income, education, work experience, marketable skills, and realistic job prospects. A spouse who has been out of the workforce for 15 years has different earning capacity than one who maintained continuous employment.

3. Financial condition after property division. If the lower-earning spouse received substantial property (home equity, retirement accounts), the need for ongoing cash support diminishes. Alimony fills the gap that property division can't cover.

4. Age, health, and physical condition. A 58-year-old spouse with chronic health conditions limiting employment has a stronger case for permanent support than a healthy 35-year-old who can re-enter the workforce.

5. Standard of living during the marriage. Courts aim to allow both spouses to maintain something reasonably close to the marital standard — though this is aspirational, not guaranteed.

6. Relative fault. Unlike property division (where fault is excluded), fault remains a statutory factor in alimony. If one spouse's misconduct caused the marriage breakdown, it can reduce or increase their support obligation/entitlement. This includes infidelity, abandonment, substance abuse, and financial misconduct.

Three Types of Alimony in South Dakota

General (Permanent) Alimony

Purpose: Maintain a comparable standard of living for a lower-earning spouse who cannot become self-supporting.

Typical situation: Long marriage (15+ years), significant income disparity, the requesting spouse sacrificed career opportunities for the family.

Modification: Can be modified upon showing a "material, involuntary change in circumstances" — job loss, disability, significant income change.

Termination: Ends on the death of either party, remarriage of the recipient, or cohabitation of the recipient in a marriage-like relationship.

Rehabilitative Alimony

Purpose: Fund education or vocational training needed to re-enter the workforce.

Typical situation: A spouse who left the workforce to raise children needs 2-4 years of support to complete a degree or certification.

Modification: Modifiable if educational plans or costs change unexpectedly (program extends, tuition increases, health interrupts studies).

Termination: Ends upon completion of the educational program, the set deadline, or death.

Restitutional (Reimbursement) Alimony

Purpose: Compensate a spouse who supported the family while the other obtained an advanced degree or professional license.

Typical situation: You worked to put your spouse through medical school or law school. The degree enhanced their earning capacity but isn't divisible as property.

Modification: Generally non-modifiable — it represents repayment of a past contribution, not ongoing need.

Termination: Does not terminate on remarriage. Ends only upon final payment or death.

Trading Alimony for Property

In settlement negotiations, spousal support is frequently traded against property. A lower-earning spouse might accept a larger share of home equity or retirement accounts in exchange for waiving ongoing alimony.

Key considerations:

• Property division is final. Once the decree is signed, you cannot modify who got what.
• Alimony is modifiable. General alimony can be reduced or eliminated if circumstances change — the payer loses their job, the recipient gets a raise, the recipient starts cohabiting.
• Certainty vs. risk: A lump-sum property award gives certainty. Monthly alimony carries the risk that the payer defaults, files bankruptcy, or successfully petitions for modification.

For tax planning: since 2019, alimony is no longer tax-deductible for the payer or taxable income for the recipient. This eliminates the old strategy of inflating alimony payments for a mutual tax benefit.

Temporary Support During the Divorce

Either spouse can request temporary spousal support under SDCL § 25-4-38 during the proceedings — before the final decree is entered. Temporary support:

• Maintains the financial status quo during the 60-day waiting period and beyond
• Is awarded quickly via motion hearing
• Does not bind the judge's final alimony decision
• Covers immediate needs: housing, utilities, food, medical insurance

Building Your Case

Whether you're requesting or opposing alimony, your financial presentation matters. The court needs:

• Complete income documentation (W-2s, tax returns, pay stubs, bank statements)
• A detailed post-divorce monthly budget showing expenses vs. income
• Evidence of contributions to the marriage (both monetary and non-monetary)
• Documentation of earning capacity limitations (health records, gap in employment, education limitations)

The South Dakota Financial Split Guide includes a spousal support estimator worksheet that organizes these factors and models different outcomes — helping you enter mediation or trial with concrete numbers rather than abstract arguments.

See more South Dakota guides →