How Much Alimony Will I Get (or Pay) in South Dakota? 2026 Complete Guide
By Antonio G. Jimenez, Esq. | Florida Bar No. 21022 | Covering South Dakota divorce law
South Dakota courts award alimony (spousal support) under SDCL § 25-4-41, with typical awards covering 20-25% of the income gap between spouses. For a marriage where one spouse earns $75,000 and the other earns $42,000, expect monthly alimony of $660-$825. South Dakota has no fixed statutory formula for calculating spousal support—instead, judges apply six factors derived from decades of case law, including marriage duration, earning capacity, age, health, standard of living, and marital fault.
Key Facts: South Dakota Alimony at a Glance
| Factor | South Dakota Rule |
|---|---|
| Filing Fee | $97 ($50 base + $40 automation + $7 law library) as of May 2026 |
| Waiting Period | 60 days mandatory under SDCL § 25-4-34 |
| Residency Requirement | Must be resident at filing—no minimum duration |
| Grounds for Divorce | 1 no-fault (irreconcilable differences) + 6 fault-based |
| Property Division | Equitable distribution |
| Alimony Formula | None—judicial discretion under SDCL § 25-4-41 |
| State Income Tax | None—$0 tax impact on alimony |
| Types of Alimony | General, Rehabilitative, Restitutional |
How South Dakota Courts Calculate Alimony Amounts
South Dakota judges determine spousal support amounts by applying a totality-of-the-circumstances analysis with no statutory formula. Under SDCL § 25-4-41, courts may compel one party to make a suitable allowance to the other party for support during the life of that other party or for a shorter period. The typical alimony award in South Dakota covers 20-25% of the income differential between spouses, though this benchmark varies significantly based on individual circumstances.
The Six Primary Factors Courts Evaluate
South Dakota courts have developed six primary factors through case law to guide alimony determinations under SDCL § 25-4-41:
- Duration of the marriage: Marriages exceeding 10 years typically qualify for longer alimony periods, while marriages under 5 years rarely result in support awards
- Earning capacity of each spouse: Courts compare current income, education levels, job skills, and employment history
- Post-divorce financial condition: The anticipated financial circumstances of each party after property division
- Age and health of each spouse: Physical or mental health conditions that limit earning ability
- Standard of living during the marriage: The lifestyle the parties maintained while married
- Fault in causing the divorce: South Dakota is one of few states where marital misconduct can increase or decrease alimony
The South Dakota Supreme Court confirmed these factors in landmark cases including Guindon v. Guindon (256 N.W.2d 894, 1977) and Hagedorn v. Hagedorn (2012 SD 72, 822 N.W.2d 719). Trial courts must complete property division before addressing alimony, as established in Hill v. Hill (2009 SD 18, 763 N.W.2d 818).
How Much Alimony Can You Expect in South Dakota?
Expect monthly alimony payments ranging from $500 to $2,500 for most middle-income South Dakota divorces, with the exact amount depending on the income disparity between spouses and marriage length. The typical award covers 20-25% of the income gap—meaning if you earn $50,000 and your spouse earns $120,000, the $70,000 gap could translate to $1,166-$1,458 monthly ($14,000-$17,500 annually). Higher-income divorces involving business owners or professionals may see awards exceeding $5,000 monthly.
Sample Alimony Calculations
| Higher Earner Income | Lower Earner Income | Income Gap | Estimated Monthly Alimony (20-25%) |
|---|---|---|---|
| $75,000 | $42,000 | $33,000 | $550-$688 |
| $100,000 | $45,000 | $55,000 | $917-$1,146 |
| $150,000 | $60,000 | $90,000 | $1,500-$1,875 |
| $200,000 | $50,000 | $150,000 | $2,500-$3,125 |
These estimates assume a marriage of 10+ years. Shorter marriages typically result in lower percentages or no alimony at all. Courts also consider whether the lower-earning spouse sacrificed career opportunities to support the higher earner or raise children.
How Long Does Alimony Last in South Dakota?
Alimony duration in South Dakota typically equals approximately one-third of the marriage length, though judges retain broad discretion to order shorter or longer periods. A 15-year marriage might result in 5 years of spousal support, while a 30-year marriage could lead to 10 years or permanent support until death or remarriage. Marriages under 5 years rarely receive alimony beyond rehabilitative support lasting 1-2 years.
Duration Guidelines by Marriage Length
| Marriage Duration | Typical Alimony Duration | Notes |
|---|---|---|
| Under 5 years | Rarely awarded | Only in exceptional circumstances |
| 5-10 years | 2-3 years | Usually rehabilitative |
| 10-15 years | 3-5 years | Mix of rehabilitative and general |
| 15-20 years | 5-7 years | General alimony more common |
| 20+ years | 7-10 years or permanent | Permanent support possible |
Under SDCL § 25-4-41, courts may order support during the life of the receiving spouse in long-term marriages where the recipient cannot become self-supporting due to age, health, or limited employment prospects.
Three Types of Alimony in South Dakota
South Dakota courts award three distinct types of alimony, each serving different purposes and applying to different divorce circumstances. Understanding which type applies to your situation helps estimate both the amount and duration of potential support payments.
1. General Alimony
General alimony provides ongoing financial support to ensure the receiving spouse can maintain housing and provide for basic necessities. Courts award general alimony in marriages of substantial duration (typically 10+ years) where one spouse lacks the earning capacity to maintain a reasonable standard of living independently. Monthly amounts typically range from $800-$3,000 depending on the parties' incomes. General alimony may be permanent or time-limited based on the recipient's ability to become self-supporting.
2. Rehabilitative Alimony
RehabilitativeI alimony provides temporary support while the receiving spouse obtains education, training, or work experience needed to become self-supporting. Courts commonly award rehabilitative alimony for 2-4 years, sufficient to complete a degree program or vocational certification. For example, a spouse returning to nursing school might receive $1,500 monthly for 30 months to cover living expenses while completing their RN program. Rehabilitative awards require the recipient to present a concrete plan for achieving self-sufficiency.
3. Restitutional Alimony
Restitutional alimony reimburses one spouse for contributions made toward the other's education, professional training, or career advancement during the marriage. If you worked full-time while your spouse attended medical school or law school, restitutional alimony compensates you for that investment. Courts calculate restitutional awards based on documented contributions—tuition payments, living expenses covered, opportunity costs of delayed career advancement. Awards typically equal 50-100% of the documented contribution amount, paid in a lump sum or over 2-5 years.
How Marital Fault Affects South Dakota Alimony
Marital fault directly impacts alimony awards in South Dakota, making it one of the minority of states where misconduct can increase or decrease spousal support. Under SDCL § 25-4-41, courts consider fault as one of the six primary factors in setting alimony amounts. Adultery, extreme cruelty, or abandonment by the paying spouse may result in 15-30% higher alimony awards, while similar misconduct by the receiving spouse may reduce or eliminate support entirely.
Fault-Based Grounds That May Affect Alimony
South Dakota recognizes six fault-based divorce grounds under SDCL § 25-4-2 that may influence alimony:
- Adultery (SDCL § 25-4-3): Proven infidelity may increase alimony owed by the unfaithful spouse
- Extreme cruelty (SDCL § 25-4-4): Physical or severe emotional abuse strengthens the victim's alimony claim
- Willful desertion (SDCL § 25-4-5): Abandoning the marital home may reduce the deserting spouse's support rights
- Willful neglect (SDCL § 25-4-15): Failure to provide necessities due to idleness or dissipation
- Habitual intemperance: Chronic alcohol or substance abuse
- Felony conviction: Criminal conviction during the marriage
Importantly, under SDCL § 25-4-45.1, fault generally does not affect property division—only alimony and potentially parental fitness determinations.
Temporary Alimony During South Dakota Divorce Proceedings
South Dakota courts may order temporary alimony within 30-60 days of filing a motion under SDCL § 25-4-38, providing interim support while the divorce case proceeds. Temporary support typically covers living expenses, attorney fees, and court costs until the final decree is entered. The South Dakota Supreme Court confirmed in Saint-Pierre v. Saint-Pierre (357 N.W.2d 250, 1984) that courts apply the same six factors to temporary awards as permanent alimony.
What Temporary Alimony Covers
- Monthly living expenses: Rent, utilities, food, transportation
- Health insurance premiums: Maintaining coverage during divorce proceedings
- Attorney fees: The dependent spouse's legal representation costs
- Court costs: Filing fees and related litigation expenses
Temporary alimony is gender-neutral—either spouse may request interim support based on demonstrated need and the other spouse's ability to pay. Monthly temporary awards typically range from $1,000-$3,500 depending on the parties' incomes and the dependent spouse's expenses.
Modifying Alimony in South Dakota
Either spouse can request modification of an alimony award by demonstrating a substantial change in circumstances under SDCL § 25-4-41. Common grounds for modification include job loss, significant income changes (25%+ increase or decrease), serious illness, disability, or the receiving spouse's cohabitation with a new partner. The party seeking modification bears the burden of proving the changed circumstances warrant an adjustment.
Non-Modifiable Alimony Agreements
Spouses may agree in writing that their alimony award is non-modifiable, preventing either party from requesting changes regardless of future circumstances. Courts will enforce these provisions. However, if your divorce agreement is silent on modifiability, South Dakota law presumes the award can be modified based on substantial changed circumstances.
When Alimony Terminates
South Dakota alimony terminates upon:
- Remarriage of the receiving spouse (requires motion to terminate—does not end automatically)
- Death of either party
- Expiration of the court-ordered duration
- Court-ordered modification to zero based on changed circumstances
Importantly, the paying spouse must file a motion with the court when the receiving spouse remarries. Alimony obligations continue until the court enters a termination order.
Can You Waive Alimony in South Dakota?
No, South Dakota does not permit spousal support waivers in prenuptial or postnuptial agreements. The South Dakota Supreme Court held in Sanford v. Sanford (2005 SD 34, 694 N.W.2d 283) that provisions purporting to waive alimony are void and against public policy. This makes South Dakota one of the most restrictive states regarding spousal support waivers.
Even if your prenuptial agreement includes an alimony waiver clause, South Dakota courts will not enforce it. Each spouse retains the right to request spousal support regardless of any prior agreement. This policy derives from the common law obligation of spouses to support one another, as confirmed in Haanen v. Haanen (2009 SD 60, 769 N.W.2d 836).
Federal Tax Treatment of South Dakota Alimony in 2026
For all divorces finalized after December 31, 2018, alimony is neither tax-deductible for the payer nor taxable income for the recipient under federal law. The Tax Cuts and Jobs Act of 2017 permanently eliminated the alimony deduction, and this rule was confirmed as permanent by the One Big Beautiful Bill Act (OBBBA) of 2025. The paying spouse sends $1,500 in monthly alimony without any tax offset, while the receiving spouse keeps the full amount tax-free.
Pre-2019 Divorce Agreements (Legacy Rules)
Approximately 5-8% of currently active South Dakota alimony orders fall under the legacy tax rules applicable to divorces finalized before January 1, 2019. Under these rules, the paying spouse may deduct alimony payments from federal taxable income, while the receiving spouse reports alimony as taxable income.
South Dakota State Tax Advantage
South Dakota imposes no state income tax, meaning alimony payments carry zero state tax consequences for either party regardless of when the divorce was finalized. This makes South Dakota one of the most tax-advantageous states for both alimony payers and recipients.
Filing for Divorce in South Dakota: Requirements and Costs
Filing for divorce in South Dakota requires being a state resident at the time of filing under SDCL § 25-4-30—there is no minimum residency duration. The $97 filing fee includes a $50 base court filing fee, $40 automation surcharge, and $7 law library fee as of May 2026. Verify the exact amount with your local clerk as some counties may have minor variations.
Complete Cost Breakdown
| Cost Category | Amount |
|---|---|
| Filing fee | $97 |
| Service of process (sheriff) | $50-$75 |
| Answer filing fee (respondent) | $25 |
| SMILE parenting class (per person) | $20 |
| Court-ordered mediation | $100-$300/hour |
| Uncontested divorce (with attorney) | $3,000-$5,000 |
| Contested divorce (with attorney) | $15,000-$30,000 |
| Pro se uncontested divorce | $250-$500 |
Fee Waivers
If you cannot afford filing fees, South Dakota allows fee waiver requests through Form UJS-022 (Motion, Affidavit, and Order to Waive Filing Fee & Service of Process Fee) and Form UJS-023 (Financial Statement). Eligibility typically requires household income at or below 125% of the federal poverty guidelines.
60-Day Waiting Period
South Dakota mandates a 60-day waiting period under SDCL § 25-4-34 between service of the summons and complaint and entry of the final divorce decree. No divorce can be finalized until this period expires.
Frequently Asked Questions: South Dakota Alimony
How is alimony calculated in South Dakota?
South Dakota has no statutory formula for calculating alimony. Judges apply six factors under SDCL § 25-4-41: marriage duration, earning capacity, post-divorce finances, age and health, standard of living, and marital fault. Typical awards cover 20-25% of the income gap between spouses, paid monthly for approximately one-third of the marriage length.
What is the average alimony payment in South Dakota?
Average monthly alimony payments in South Dakota range from $500 to $2,500 for middle-income divorces. A spouse earning $75,000 married to someone earning $42,000 might pay $660-$825 monthly. Higher-income cases involving professionals or business owners may exceed $5,000 monthly depending on the income disparity and marriage duration.
How long does alimony last in South Dakota?
Alimony duration typically equals one-third of the marriage length. A 15-year marriage might result in 5 years of support. Marriages under 5 years rarely receive alimony. Marriages exceeding 20 years may qualify for permanent support lasting until death or remarriage of the recipient.
Does adultery affect alimony in South Dakota?
Yes, South Dakota considers marital fault including adultery when determining alimony under SDCL § 25-4-41. The unfaithful spouse may face 15-30% higher alimony obligations. Conversely, a receiving spouse who committed adultery may see reduced or eliminated support. Fault does not affect property division under SDCL § 25-4-45.1.
Can I waive alimony in a prenuptial agreement in South Dakota?
No, South Dakota courts will not enforce alimony waivers in prenuptial or postnuptial agreements. The South Dakota Supreme Court ruled in Sanford v. Sanford (2005 SD 34, 694 N.W.2d 283) that spousal support waivers are void and against public policy. Either spouse may request alimony regardless of prior agreements.
Is alimony tax-deductible in South Dakota?
For divorces finalized after December 31, 2018, alimony is not tax-deductible for the payer and not taxable to the recipient under federal law. South Dakota has no state income tax, so there are zero state tax consequences for alimony payments. Only divorces finalized before 2019 may use the legacy deduction rules.
Can alimony be modified after the divorce in South Dakota?
Yes, either spouse can request modification by demonstrating substantial changed circumstances under SDCL § 25-4-41. Common grounds include 25%+ income changes, job loss, serious illness, or the recipient's cohabitation. However, spouses may agree in writing that alimony is non-modifiable, in which case courts will enforce that provision.
Does alimony end when my ex remarries in South Dakota?
Alimony typically terminates upon the receiving spouse's remarriage, but it does not end automatically. The paying spouse must file a motion with the court and obtain a termination order. Alimony obligations continue until the court officially terminates them, even if the receiving spouse has already remarried.
What types of alimony exist in South Dakota?
South Dakota courts award three types of alimony: General alimony provides ongoing support for spouses who cannot become self-sufficient. Rehabilitative alimony (typically 2-4 years) supports education or training to achieve independence. Restitutional alimony reimburses a spouse for contributions to the other's education or career advancement during the marriage.
How much does a divorce cost in South Dakota?
The basic filing fee is $97 as of May 2026. An uncontested divorce with attorney representation typically costs $3,000-$5,000. A contested divorce with significant assets or custody disputes averages $15,000-$30,000. Pro se (self-represented) uncontested divorces cost $250-$500 including filing fees and service costs.
This guide provides general information about South Dakota alimony laws current as of May 2026. Filing fees and court procedures may vary by county. Consult a South Dakota family law attorney for advice specific to your circumstances.