South Dakota courts award three distinct types of alimony under SDCL § 25-4-41: general alimony for ongoing support, rehabilitative alimony for education and job training, and restitutional alimony to compensate career-supporting spouses. Unlike states with fixed formulas, South Dakota judges have broad discretion to determine payment amounts and duration based on six statutory factors including marriage length, earning capacity, and marital fault. The filing fee for divorce in South Dakota is $97 as of May 2026, and the state imposes a mandatory 60-day waiting period before finalization under SDCL § 25-4-34.
Key Facts: South Dakota Alimony at a Glance
| Factor | South Dakota Law |
|---|---|
| Filing Fee | $97 ($50 base + $40 automation + $7 library) |
| Waiting Period | 60 days minimum |
| Residency Requirement | Must be resident at filing (no duration requirement) |
| Grounds for Divorce | No-fault (irreconcilable differences) or fault-based |
| Property Division | Equitable distribution |
| Alimony Types | General, Rehabilitative, Restitutional |
| Calculation Formula | None—judicial discretion under 6 factors |
| Spousal Support Waivers | Prohibited (Sanford v. Sanford, 2005) |
| State Income Tax | None |
Understanding the Three Types of Alimony in South Dakota
South Dakota law recognizes three distinct categories of spousal support, each serving a specific purpose in post-divorce financial arrangements. Courts evaluate the circumstances of each marriage to determine which type—or combination of types—appropriately addresses the receiving spouse's needs while balancing the paying spouse's ability to pay. The three types of alimony in South Dakota are general alimony, rehabilitative alimony, and restitutional alimony, with rehabilitative support being the most frequently awarded form in modern divorce cases.
General Alimony: Long-Term or Permanent Support
General alimony provides ongoing financial support to help a spouse maintain basic living standards including housing, food, clothing, and healthcare after divorce. Under SDCL § 25-4-41, courts award general alimony when one spouse lacks the income, assets, or earning capacity to meet reasonable needs independently following the dissolution of marriage. This form of spousal support can continue for the lifetime of the receiving spouse or for a shorter period as the court deems just based on the specific circumstances of the case.
Permanent general alimony is increasingly rare in South Dakota and typically reserved for marriages exceeding 20 years where the receiving spouse cannot become self-supporting due to advanced age, chronic health conditions, or disabilities. Courts prefer time-limited support arrangements that encourage financial independence rather than long-term dependency. A 25-year marriage where one spouse never worked outside the home and is now 62 years old with health limitations would be a strong candidate for general alimony, potentially lasting 10-15 years or until Social Security benefits become available.
Rehabilitative Alimony: The Most Common Award
Rehabilitative alimony is the most frequently awarded type of spousal support in South Dakota, providing funds for education, job training, certification programs, or skill development to help the receiving spouse become financially self-supporting within a defined timeframe. Courts require a specific rehabilitative plan demonstrating how the receiving spouse will use the support to increase their earning capacity, including program timelines, anticipated costs, and expected employment outcomes upon completion.
A typical rehabilitative alimony award in South Dakota lasts 2-4 years, covering tuition, textbooks, living expenses, and related costs while the receiving spouse completes their education or training program. For example, a spouse who left a nursing career 15 years ago to raise children might receive $2,500 monthly for 24 months to complete a nursing license refresher program and re-enter the workforce. The purpose of rehabilitative support is to provide financial assistance and time necessary to acquire job training or education that will lead to employment and financial independence.
Restitutional Alimony: Compensating Career Supporters
Restitutional alimony compensates a spouse who made substantial financial contributions toward the other spouse's education, professional training, or career advancement during the marriage. This form of support acknowledges that one spouse may have sacrificed their own career opportunities or worked additional hours to fund the other's professional development, creating an economic partnership that should be recognized in the divorce settlement.
The amount of restitutional alimony typically corresponds to the documented financial contributions made during the marriage, adjusted for the length of time the marriage continued after the supported spouse completed their education. If one spouse worked full-time for 4 years while the other earned a medical degree at a cost of $200,000, and the marriage ended 3 years after graduation, courts would calculate restitutional support based on the documented investment and the relatively short time the contributing spouse benefited from the enhanced earning capacity. Payments usually occur over a fixed period rather than as a lump sum.
How South Dakota Courts Determine Alimony Awards
South Dakota courts evaluate six primary factors when determining spousal support awards under SDCL § 25-4-41, though no statutory formula exists for calculating specific amounts. Judges have broad discretion to weigh these factors based on the unique circumstances of each case, which means alimony outcomes can vary significantly even between marriages of similar length and income levels. Understanding these factors helps divorcing spouses anticipate potential outcomes and negotiate informed settlement agreements.
The Six Statutory Factors
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Duration of the Marriage: Marriages under 5 years rarely result in alimony awards in South Dakota. Marriages lasting 5-10 years typically produce 2-3 years of support. Marriages of 10-20 years generate awards of 3-6 years. Marriages exceeding 20 years may result in longer awards, with a general guideline suggesting alimony duration equals approximately one-third the length of the marriage.
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Earning Capacity of Each Spouse: Courts examine each spouse's education, work history, job skills, and current employment status. A spouse with a graduate degree and 20 years of professional experience has greater earning capacity than a spouse who never completed college and has been out of the workforce for 15 years. Courts also consider whether the receiving spouse reduced their earning capacity by supporting the other's career.
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Post-Divorce Financial Condition: After property division, courts assess each spouse's financial position including income, assets, debts, and monthly expenses. The goal is ensuring both spouses can maintain a reasonable standard of living, not necessarily an equal one, following the divorce. A spouse retaining substantial assets may receive less alimony despite lower income.
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Age and Physical Health: Older spouses and those with health conditions affecting employability may receive larger or longer-lasting awards. A 58-year-old spouse with a chronic illness has fewer options for becoming self-supporting than a healthy 35-year-old. Courts consider both current health status and reasonably anticipated future medical needs.
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Standard of Living During Marriage: Courts aim to prevent a dramatic decline in living standards for the lower-earning spouse while recognizing that maintaining two households often requires lifestyle adjustments for both parties. The marital standard of living establishes a reference point, not an entitlement.
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Fault in Causing the Divorce: Unlike many states that have eliminated fault considerations, South Dakota courts weigh marital fault directly when determining alimony awards. Under SDCL § 25-4-2, adultery is a recognized fault ground that can substantially reduce or completely eliminate a cheating spouse's alimony award.
Temporary Alimony During Divorce Proceedings
Temporary alimony, also called pendente lite support or interim spousal support, provides financial assistance from one spouse to the other while the divorce case is pending in circuit court. Under SDCL § 25-4-38, a judge may order temporary payments within 30-60 days of the motion being filed to ensure the financially dependent spouse can meet immediate living expenses, pay attorney fees, and cover court costs throughout the litigation process.
Temporary alimony serves a different purpose than permanent support—it maintains the financial status quo during divorce proceedings rather than establishing long-term post-divorce arrangements. Courts typically award temporary support relatively quickly based on preliminary financial information, with detailed analysis reserved for the final alimony determination. The temporary support amount may differ substantially from the final award once the court completes its full evaluation of all statutory factors and considers the complete financial picture.
Modifying Alimony Orders in South Dakota
Either spouse can petition the court to modify an alimony award when a substantial change in circumstances occurs after the original divorce decree under SDCL § 25-4-41. The petitioning spouse bears the burden of proving the change is significant, material, and ongoing rather than temporary or speculative. Courts distinguish between voluntary changes within a party's control and involuntary circumstances beyond their ability to prevent.
Common qualifying changes that may warrant alimony modification include involuntary job loss, disability or serious illness, retirement at a reasonable age, significant income increase for either party, or the receiving spouse's cohabitation with a new partner. A paying spouse who voluntarily quits a high-paying job to pursue a lower-paying passion would likely not succeed in reducing their alimony obligation, while a paying spouse who loses their job due to company downsizing would have stronger grounds for modification.
Non-Modifiable Alimony Agreements
Spouses can agree in writing that their alimony award is non-modifiable, and once the court approves such a provision, neither party can petition for changes regardless of changed circumstances. Non-modifiable provisions provide certainty for both parties but carry significant risk if circumstances change dramatically. A spouse agreeing to non-modifiable alimony should carefully consider potential future scenarios including job loss, health changes, and retirement.
When Alimony Terminates in South Dakota
Alimony terminates upon the death of either spouse or the remarriage of the receiving spouse in South Dakota, though the paying spouse must file a motion with the court—alimony does not terminate automatically upon remarriage. The South Dakota Supreme Court has stated that it is illogical and unreasonable for a spouse to receive maintenance from both a present and former spouse simultaneously, shifting the burden to the recipient to prove extraordinary circumstances justifying continued payments.
Cohabitation and Alimony
Cohabitation does not automatically terminate alimony in South Dakota, unlike some other states with explicit cohabitation termination statutes. However, the paying spouse can file a modification petition arguing that the receiving spouse's financial needs have decreased due to shared living expenses with a new partner. The court evaluates whether the cohabitation constitutes a material change in circumstances warranting a reduction or termination based on the specific financial arrangements between the cohabitants.
In the 1980 case Myhre v. Myhre, the South Dakota Supreme Court held that cohabitation alone was not a sufficient change in circumstances to warrant automatic termination of alimony payments, establishing that each case requires individual analysis of the actual financial impact. Courts examine whether the cohabitation genuinely reduces the receiving spouse's need for support, which depends on factors like whether the new partner contributes to household expenses.
South Dakota's Prohibition on Spousal Support Waivers
South Dakota is one of only nine states that prohibit spousal support waivers in prenuptial and postnuptial agreements. The South Dakota Supreme Court definitively addressed this limitation in Sanford v. Sanford, 2005 SD 34, 694 N.W.2d 283, holding that prenuptial provisions purporting to waive alimony are void and unenforceable as against public policy. This prohibition applies regardless of how wealthy either spouse is or how carefully the agreement was drafted.
The Sanford case involved T. Denny Sanford, who had a net worth of $55 million at the time of marriage, and his wife Colleen, who had a net worth of approximately $127,000. Their prenuptial agreement limited alimony to $144,000 paid in 36 monthly installments of $4,000. The Supreme Court unanimously ruled this alimony limitation unenforceable while allowing the property division provisions to stand. The court explained that this prohibition protects the support rights of both men and women who may be asked to sign away those rights in contemplation of marriage.
Legislative History
When South Dakota adopted the Uniform Premarital Agreement Act in 1989 as SDCL § 25-2-18, the legislature deliberately omitted Section 3(a)(4) of the model act, which would have permitted parties to contract regarding the modification or elimination of spousal support. The House Judiciary Committee meeting minutes from February 7, 1989, document that this provision was specifically eliminated before the bill's approval. This legislative choice reflects South Dakota's strong public policy favoring court determination of spousal support based on circumstances at the time of divorce rather than contractual limitations made years earlier.
Tax Treatment of Alimony Payments
Alimony payments under divorce agreements finalized after December 31, 2018, are not deductible by the paying spouse and not taxable income for the receiving spouse under the Tax Cuts and Jobs Act (TCJA). This federal rule applies uniformly across all states, including South Dakota. For divorces finalized before January 1, 2019, the prior rules continue to apply—alimony remains deductible for the payer and taxable to the recipient.
South Dakota has no state income tax, so alimony carries zero state tax consequences regardless of when the divorce was finalized. This creates a simpler tax situation for South Dakota residents compared to states like California or New York where state income tax implications add another layer of complexity to alimony calculations. Before 2019, a paying spouse in the 32% federal tax bracket effectively reduced their alimony cost by 32% through the deduction, but under current law, $1,500 in monthly alimony costs the paying spouse exactly $1,500 with no tax offset.
Alimony Duration Guidelines by Marriage Length
| Marriage Length | Typical Alimony Duration | Common Award Type |
|---|---|---|
| Under 5 years | Rarely awarded | None or brief rehabilitative |
| 5-10 years | 2-3 years | Rehabilitative |
| 10-15 years | 3-5 years | Rehabilitative or mixed |
| 15-20 years | 5-7 years | Rehabilitative with possible general |
| Over 20 years | 7+ years or longer | General or long-term rehabilitative |
| Over 25 years | Potentially permanent | General alimony |
These guidelines represent general patterns observed in South Dakota case outcomes, not statutory requirements. Courts retain full discretion to deviate based on the specific circumstances of each case, including factors like health, age, earning capacity disparity, and marital fault. A 15-year marriage where one spouse committed adultery might produce a shorter award than a 10-year marriage where both parties acted appropriately.
Filing for Divorce and Alimony in South Dakota
The filing fee for divorce in South Dakota is $97 as of May 2026, consisting of a $50 base court fee, $40 automation surcharge, and $7 law library fee. Additional costs include $50-$75 for service of process through the county sheriff and a $25 fee if the respondent files an Answer to contest the divorce. Fee waivers are available for indigent filers who complete Form UJS-022 and Form UJS-023 demonstrating household income at or below 125% of the federal poverty guidelines.
South Dakota has the most lenient residency requirements in the nation for divorce filing. Under SDCL § 25-4-30, you must be a resident at the time of filing, but you can establish residency and file on the same day if you intend to remain in good faith. Compare this to neighboring states: Minnesota requires 180 days of residency, Nebraska requires residence for the full proceedings, and North Dakota requires 6 months. The mandatory 60-day waiting period begins when the complaint is served on the respondent.
Frequently Asked Questions About South Dakota Alimony
How is alimony calculated in South Dakota?
South Dakota has no statutory formula for calculating alimony amounts. Under SDCL § 25-4-41, judges evaluate six factors—marriage duration, earning capacity, post-divorce financial condition, age and health, standard of living during marriage, and fault—to determine appropriate awards. This discretionary approach means outcomes depend heavily on the specific circumstances presented and the individual judge's assessment.
Can I waive alimony in a prenuptial agreement in South Dakota?
No, South Dakota prohibits spousal support waivers in prenuptial and postnuptial agreements. The South Dakota Supreme Court ruled in Sanford v. Sanford, 2005 SD 34, that alimony waiver provisions are void as against public policy under SDCL § 25-2-18. Property division provisions remain enforceable, but alimony must be determined by the court at the time of divorce based on current circumstances.
What is the most common type of alimony awarded in South Dakota?
Rehabilitative alimony is the most frequently awarded type of spousal support in South Dakota, typically lasting 2-4 years to fund education, job training, or career transition programs. Courts require a specific rehabilitative plan showing how the receiving spouse will use the support to increase earning capacity. General (permanent) alimony is increasingly rare and reserved for long marriages where the spouse cannot become self-supporting.
Does adultery affect alimony in South Dakota?
Yes, adultery can substantially reduce or completely eliminate a cheating spouse's alimony award in South Dakota. Under SDCL § 25-4-2, fault in causing the divorce is one of six factors courts weigh when determining spousal support. A spouse who committed adultery may receive significantly less alimony or no alimony at all, depending on the circumstances and other factors involved.
How long does alimony last in South Dakota?
Alimony duration in South Dakota typically equals approximately one-third the length of the marriage, though courts have broad discretion. A 15-year marriage may produce a 5-year alimony award. Marriages under 5 years rarely result in alimony. Marriages over 20 years may produce longer awards, but courts generally prefer time-limited support over permanent alimony. Specific circumstances like age, health, and earning capacity can significantly affect duration.
Can alimony be modified after the divorce is final?
Yes, either spouse can petition the court to modify alimony when a substantial change in circumstances occurs under SDCL § 25-4-41. Qualifying changes include job loss, disability, retirement, significant income changes, or cohabitation. However, if the divorce decree includes a non-modifiable alimony provision agreed to by both parties, neither spouse can seek modification regardless of changed circumstances.
Does cohabitation end alimony in South Dakota?
Cohabitation does not automatically terminate alimony in South Dakota. However, the paying spouse can petition for modification arguing that the receiving spouse's financial needs decreased due to shared expenses with a new partner. In Myhre v. Myhre (1980), the South Dakota Supreme Court held that cohabitation alone is insufficient for automatic termination—courts must analyze the actual financial impact on the receiving spouse's support needs.
When does alimony automatically end in South Dakota?
Alimony terminates upon the death of either spouse or the remarriage of the receiving spouse under South Dakota law. However, termination upon remarriage is not automatic—the paying spouse must file a motion with the court. The receiving spouse bears the burden of proving extraordinary circumstances if they seek continuation of support after remarriage. Cohabitation does not automatically end alimony but may support a modification petition.
What is the difference between rehabilitative and restitutional alimony?
Rehabilitative alimony funds future education or job training to help a spouse become self-supporting, typically lasting 2-4 years with a specific plan for career development. Restitutional alimony compensates a spouse for past financial contributions toward the other spouse's education or career advancement during the marriage. The amount of restitutional support corresponds to documented contributions made, while rehabilitative amounts reflect projected costs for the receiving spouse's own education.
Are alimony payments tax-deductible in South Dakota?
For divorces finalized after December 31, 2018, alimony payments are not tax-deductible by the paying spouse and not taxable income for the receiving spouse under federal law (the Tax Cuts and Jobs Act). South Dakota has no state income tax, so there are no state-level tax implications for alimony. For pre-2019 divorces, the prior rules continue to apply—payers may deduct alimony and recipients must report it as taxable income.
This guide provides general legal information about types of alimony in South Dakota and is not a substitute for professional legal advice. Spousal support determinations depend heavily on individual circumstances, and outcomes can vary significantly based on the specific facts of each case. For personalized guidance on your divorce and alimony situation, consult with a qualified South Dakota family law attorney.
Author: Antonio G. Jimenez, Esq., Florida Bar No. 21022 Last Updated: May 2026 Filing Fee Verification: As of May 2026. Verify current fees with your local circuit court clerk.