Alimony in South Dakota: Who Qualifies and How Long It Lasts

In South Dakota, alimony is not calculated with a formula, a percentage, or a set number of years. Instead, a judge decides who qualifies, how much is fair, and how long payments last based on the specific circumstances of each marriage. There is no statutory guarantee of alimony and no statutory cap on it — the court has broad discretion, and that discretion is guided by a handful of factors the South Dakota Supreme Court has laid out over the years.

Who Qualifies for Alimony in South Dakota

South Dakota law allows a court, when it grants a divorce, to order one spouse to make a "suitable allowance" to the other for that spouse's support. The statute does not require a minimum length of marriage, a minimum income gap, or any other bright-line test before alimony can be considered. Support can run "for the life of that other party or for a shorter period, as the court may deem just" — meaning the length of an award is left entirely to the judge's judgment on the facts in front of them [SDCL 25-4-41].

Because the statute itself does not spell out a checklist, South Dakota courts have relied on case law to structure that discretion. The leading case is Guindon v. Guindon, which directs judges to weigh:

• The length of the marriage
• Each spouse's earning capacity
• Each spouse's financial condition after the marital property has been divided
• Age, health, and physical condition of each spouse
• Station in life and social standing
• Relative fault in ending the marriage

That last factor is worth pausing on. In many states, fault (such as adultery or abandonment) has been pushed out of alimony decisions entirely. In South Dakota, fault can still be considered when a court sets alimony, even though it generally does not drive how property is divided [Guindon v. Guindon, 256 N.W.2d 894 (S.D. 1977)]. That means a spouse's conduct during the marriage may matter more here than it does in some other states.

Duration is not fixed by statute

There is no South Dakota statute stating that alimony automatically lasts a certain number of years per year of marriage, or that it caps out at any age or dollar figure. The order can run for a defined term or for the recipient's lifetime, and the court can revisit it later. If your case involves a long marriage, a large income gap, or health issues, ask your attorney or the court clerk how local judges in your circuit have historically approached duration, since this is genuinely case-by-case and can change over time.

Temporary Alimony While the Divorce Is Pending

Divorces in South Dakota can take months to resolve, and a spouse who depends on the other's income needs support in the meantime. State law addresses this directly: while a divorce action is pending, the court may require one spouse to pay whatever money is necessary to support the other spouse or the children, or to help that spouse prosecute or defend the case [SDCL 25-4-38]. This is often called "suit money" and can cover living expenses, attorney fees, and litigation costs. Temporary alimony automatically ends once the final divorce decree is entered — at that point, any ongoing support has to be addressed separately as part of the final judgment.

Separate Maintenance: Support Without Filing for Divorce

Some spouses want financial support without ending the marriage — for religious, insurance, or personal reasons. South Dakota specifically allows this. A spouse can bring an action for "separate maintenance" on any ground that would also support a divorce, without actually asking the court to grant a divorce. In a separate maintenance case, the court has the same power to award temporary alimony, suit money, and permanent support for a spouse and the children as it would in a divorce case [SDCL 25-4-40]. This is a useful option if you need enforceable support now but are not ready — or do not want — to divorce.

The South Dakota Residency Rule

Before you can file for divorce or separate maintenance in South Dakota, the person filing (the plaintiff) must be a resident of South Dakota, or be stationed in South Dakota as an active member of the armed forces, at the time the case is filed. South Dakota does not set a minimum number of days or months of residency before someone qualifies to file — the requirement is about residency status at the moment the action is commenced, not a waiting period. Notably, the statute also says the plaintiff does not have to keep maintaining that residency afterward to get the final decree [SDCL 25-4-30]. If you're unsure whether you currently meet this test, check with the clerk of courts in the county where you intend to file.

The No-Fault Consent Requirement — A South Dakota Quirk

This is a fact worth flagging because it surprises a lot of people. South Dakota recognizes "irreconcilable differences" (defined as substantial reasons for not continuing the marriage) as a no-fault ground for divorce. But unlike almost every other state, South Dakota requires the consent of both spouses to use that no-fault ground — or the non-filing spouse's failure to appear in the case. If your spouse actively objects and shows up to contest a no-fault filing, the court generally cannot grant the divorce on irreconcilable differences alone; a fault-based ground may be needed instead. South Dakota and Mississippi are the only two states with this consent requirement [SDCL 25-4-17.1]. This can directly affect strategy and timing in your case, so it's worth discussing with a South Dakota family law attorney early if your spouse is uncooperative.

What Happens to Alimony If Someone Files Bankruptcy

Alimony does not disappear if the paying spouse later files for bankruptcy. Under federal bankruptcy law, a "domestic support obligation" — which includes alimony and child support — cannot be discharged (wiped out) in bankruptcy, and it is paid ahead of most other unsecured debts in the priority order. Property-settlement debts owed to an ex-spouse under a divorce decree are also generally non-dischargeable in a Chapter 7 bankruptcy [11 U.S.C. §§ 507, 523]. In practical terms: filing bankruptcy is not a way to escape a South Dakota alimony order, and a support recipient generally keeps a strong legal position even if the other spouse's finances collapse.

What You Can Do in South Dakota

1. Confirm you meet the residency rule before filing — the person filing must be a South Dakota resident, or stationed here in the armed forces, at the time the case is commenced [SDCL 25-4-30].
2. Decide whether you need a divorce or separate maintenance. If you want support without ending the marriage, separate maintenance is available on the same grounds as divorce [SDCL 25-4-40].
3. If your spouse may contest a no-fault filing, talk to a South Dakota attorney about how the consent requirement for irreconcilable differences could affect your case [SDCL 25-4-17.1].
4. Ask for temporary support early if you need help with living expenses or legal costs while the case is pending — courts can order this under the "suit money" statute [SDCL 25-4-38].
5. Gather documentation on the Guindon factors that apply to you: length of the marriage, income and earning capacity for both spouses, health records, and anything relevant to fault, since these are what a South Dakota judge will actually weigh.
6. Don't assume a fixed duration or amount. Because South Dakota law leaves the amount and length of alimony to the court's discretion, ask your attorney what outcomes are realistic given your specific marriage rather than relying on rules of thumb from other states.

This article is for general information only and is not legal advice; consult a licensed South Dakota attorney about your specific situation.