South Dakota Surviving Spouse Rights — Elective Share, Allowances, and the Deadline to Claim Them (2026)

✓ Verified September 2026

South Dakota Surviving Spouse Rights exist because a will cannot cut a husband or wife out entirely. Every state protects a widow or widower with a share they may claim regardless of what the will says, plus allowances that come off the top before creditors and other heirs.

This guide gives the South Dakota answer in plain English: what the elective share is, the deadline to claim it, whether trusts and joint accounts count, the homestead, exempt-property and family allowances, what happens when the marriage came after the will, and what forfeits the rights. All facts are from South Dakota law, verified as of September 2026.

South Dakota Surviving Spouse Rights: At a Glance

Here are the South Dakota facts that decide most South Dakota surviving spouse rights claims:

Why the Will Cannot Disinherit a Spouse in South Dakota

The law treats marriage as an economic partnership. A spouse who spent decades contributing to a household is not left to the mercy of a will written in anger, under pressure, or decades ago. In separate-property states the protection is the elective share: a fixed fraction of the estate the surviving spouse may take instead of whatever the will provides.

In community property states it is built in — half of everything acquired during the marriage already belongs to the survivor and never passes under the will at all. South Dakota uses one of those two systems, and the table above says which.

The right is personal to the spouse and must be claimed. Nothing happens automatically: a surviving spouse who does nothing takes what the will gives, even if that is nothing. The election has a deadline, it is filed in the probate court, and it is the single South Dakota surviving spouse rights fact that a grieving spouse most often learns too late.

The South Dakota Elective Share

South Dakota gives the surviving spouse of a decedent domiciled in the state a right to take an elective-share amount equal to an elective-share percentage of the augmented estate, set on a sliding scale by the length of the marriage (SDCL 29A-2-202).

The schedule runs from a supplemental amount only for a marriage of less than 1 year, to 3 percent at 1 year, rising in steps to 50 percent of the augmented estate for a marriage of 15 years or more.

If the sum of amounts already passing to the spouse and the spouse’s own included property is under 50000, the spouse may also claim a supplemental elective-share amount equal to 50000 minus that sum (SDCL 29A-2-202). You may want to have the figures computed by a licensed South Dakota attorney.

The deadline: The election is made by filing a petition for the elective share in the court and mailing or delivering it to the personal representative, if any, within 9 months after the date of death, or within 4 months after the will is admitted to informal or formal probate, whichever limitation later expires (SDCL 29A-2-211).

A petition to extend the time for election may be filed within the 9 months and the court may grant it for good cause shown. If the petition is filed more than 9 months after death, the decedent’s nonprobate transfers to others are excluded from the augmented estate unless the court extended the time (SDCL 29A-2-211).

What counts: YES. Under SDCL 29A-2-203 the augmented estate is the sum of four components: the decedent’s net probate estate, the decedent’s nonprobate transfers to others, the decedent’s nonprobate transfers to the surviving spouse, and the surviving spouse’s own property and nonprobate transfers to others.

Nonprobate items reached include revocable trusts, property held in joint tenancy or with survivorship rights, pay-on-death and transfer-on-death accounts, life insurance and retirement beneficiary designations, and certain gifts made within 2 years of death (SDCL 29A-2-204 through 29A-2-207). Because the spouse’s own assets are counted in the base, the size of the claim varies with what the spouse already holds.

Community property: NO. South Dakota is not a community property state; there is no automatic one-half interest in marital earnings or acquisitions at death. Protection for the surviving spouse comes instead from the elective share against the augmented estate (SDCL 29A-2-202) plus the homestead allowance, exempt property, and family allowance (SDCL 29A-2-402 through 29A-2-405).

South Dakota does allow spouses to elect into community-property treatment for property transferred to a special spousal trust by written agreement (SDCL ch. 55-17), but that is voluntary and does not apply by default.

Allowances the Spouse Gets on Top of the Will

Homestead: South Dakota does not use a flat dollar homestead allowance. SDCL 29A-2-402 entitles the surviving spouse or minor children to a homestead allowance “as provided in chapter 43-31” — the homestead itself.

Within its statutory size limits of one acre within a town or municipality, or 160 acres if outside one, the homestead passes to and may be occupied by the surviving spouse and is protected from most creditor claims against the estate (SDCL 43-31-1, 43-31-4, 43-31-13). A devise of the homestead in a will is taken subject to that occupancy right (SDCL 43-31-27).

Value is generally not capped, though a 170000 limit applies in the separate senior tax-sale context of SDCL 43-31-1.

Exempt property: In addition to the homestead allowance, the surviving spouse is entitled to the property and cash described as exempt property in SDCL ch. 43-45 (SDCL 29A-2-402).

The absolute exemptions under SDCL 43-45-2 include all family pictures, a pew or sitting in a house of worship, a burial lot, the family Bible and schoolbooks and other family library books not exceeding 200 in value, all wearing apparel and clothing, one year’s provisions for the family, and one year’s fuel.

SDCL 43-45-4 allows a further selection from other personal property — goods, chattels, merchandise, money, or vehicles — up to 7000 in aggregate value for the head of a family, or 5000 if not the head of a family. If there is no surviving spouse, the decedent’s children take the exempt property jointly.

Family allowance: The surviving spouse, minor children the decedent was obligated to support, and children in fact being supported by the decedent are allowed a reasonable family allowance in money out of the estate for maintenance during the period of administration (SDCL 29A-2-403).

Without court approval the personal representative may set the allowance as a lump sum not exceeding 18000, or in installments not exceeding 1500 per month for one year; a larger or longer allowance requires a court order on petition (SDCL 29A-2-404, 29A-2-405).

The allowance is payable ahead of all claims except the homestead allowance and exempt property, and it is in addition to any share taken by will, intestacy, or election.

Married After the Will Was Signed

If the decedent married the surviving spouse after executing the will and the will makes no provision for that spouse, the omitted spouse receives the share he or she would have taken as an intestate share, applied to the portion of the estate not devised to a child of the decedent born before the marriage who is not also a child of the surviving spouse,

or to a descendant or devisee of such a child (SDCL 29A-2-301).

The share is not allowed if the will was made in contemplation of the marriage, if the will expresses an intent to be effective notwithstanding a later marriage, or if the decedent provided for the spouse by transfer outside the will with the intent that it be in lieu of a testamentary provision.

Waiver and Disqualification in South Dakota

The right of election and the rights to homestead allowance, exempt property, and family allowance may be waived wholly or partially, before or after marriage, by a written contract, agreement, or waiver signed by the surviving spouse (SDCL 29A-2-213). No consideration is required.

A waiver is unenforceable if the surviving spouse proves it was not executed voluntarily, or that it was unconscionable when executed and, before signing, the spouse was not given fair and reasonable disclosure of the decedent’s property and financial obligations, did not voluntarily and expressly waive further disclosure in writing, and did not have and could not reasonably have had adequate knowledge of those property and obligations.

Independent counsel is not a statutory requirement, though the statute’s disclosure test is decided by the court.

What forfeits the rights: An individual who was divorced from the decedent, or whose marriage to the decedent was annulled, is not a surviving spouse and takes nothing as a spouse, unless a later remarriage put them back in the marriage at the time of death (SDCL 29A-2-802).

A decree of separation that does not terminate the status of husband and wife is not a divorce for this purpose, so a legally separated spouse generally retains these rights, as does a spouse in a divorce that was still pending and not final at death.

A person who obtained or consented to a final decree or judgment of divorce or annulment not recognized as valid in South Dakota, or who participated in a marriage ceremony with a third person after a purported separation, is likewise barred (SDCL 29A-2-802). Mere abandonment or desertion is not listed as a statutory disqualifier.

If there is no will: With no will, the surviving spouse takes the entire intestate estate if the decedent left no descendants or if all surviving descendants are also descendants of the surviving spouse, but takes the first 100000 plus one-half of the balance if the decedent left one or more descendants who are not descendants of the surviving spouse (SDCL 29A-2-102).

The South Dakota dying-without-a-will guide linked below covers that in full.

Other South Dakota rules: The most distinctive South Dakota feature is that the elective share is not a flat fraction but a marriage-duration sliding scale, from a supplemental amount only under 1 year up to 50 percent of the augmented estate at 15 years or more (SDCL 29A-2-202), so a short second marriage yields far less than a long one.

Second, the homestead allowance is not a dollar figure as in most Uniform Probate Code states but a right in the homestead itself under SDCL ch. 43-31, limited by acreage rather than value. Third, common-law dower and curtesy are abolished (SDCL 29A-2-112). Fourth, spouses may voluntarily opt into community-property treatment for assets placed in a special spousal trust under SDCL ch. 55-17.

Deadlines and dollar figures can change by legislative amendment, so check the current statute with the circuit court clerk or a licensed South Dakota attorney.

Mistakes That Cost a Surviving Spouse in South Dakota

The first mistake is waiting. The election to take the statutory share has a deadline that runs from death or from the will’s admission, and the probate court cannot extend it for a spouse who did not know. The second is assuming the will is the whole picture.

A spouse who was left “the house” may be entitled to considerably more under the South Dakota surviving spouse rights rules — and may also be entitled to allowances the will never mentions.

The third mistake is signing something in the first weeks. A release, a family settlement, or a disclaimer offered by another heir can waive rights the spouse did not know they had. The last is overlooking a prenuptial agreement.

If one exists, it may have waived the elective share — but only if it met the state’s requirements for disclosure and fairness at the time, which is a question a lawyer should answer before anyone relies on it.

What to Expect When You Claim South Dakota Surviving Spouse Rights

Claiming South Dakota surviving spouse rights is a filing inside the probate case, not a separate lawsuit. The surviving spouse files the election and any allowance requests with the court, the personal representative calculates the estate the share is measured against, and the court resolves any dispute over what counts.

Where the will already gives the spouse more than the statutory share, the election is unnecessary and most spouses do not file one.

Two things surprise people. The first is how much depends on the calendar — the election deadline is short in some states and runs whether or not the spouse knew. The second is that the allowances are separate from the share and are paid first, ahead of creditors, which is often what keeps a surviving spouse in the home during the months the estate takes to settle.

Quick Answers: South Dakota Surviving Spouse Rights

What are South Dakota Surviving Spouse Rights if the will leaves the spouse nothing?

A statutory share — commonly a third to a half of the estate — plus allowances paid ahead of creditors. South Dakota Surviving Spouse Rights exist precisely for this case, but they must be claimed by a filing.

How long does a spouse have to claim South Dakota Surviving Spouse Rights?

A fixed period after death or after the will is admitted, set by statute. Missing it forfeits the statutory share, which is the most common way South Dakota surviving spouse rights are lost.

Do South Dakota Surviving Spouse Rights include assets in a trust?

In augmented-estate states, yes — trusts, joint accounts, and large gifts are added back before the share is calculated. In others, South Dakota surviving spouse rights reach only the probate estate.

What allowances come with South Dakota Surviving Spouse Rights?

A homestead allowance or the right to remain in the home, an exempt-property allowance for household goods and a car, and a family allowance during administration. These South Dakota surviving spouse rights are paid first.

Official South Dakota Sources & Resources

• South Dakota Probate Court: https://ujs.sd.gov/self-help/
• South Dakota Elective Share Statute: https://sdlegislature.gov/Statutes/29A-2-202
• Internal Revenue Service — Estate Tax: irs.gov
• Cornell Legal Information Institute: law.cornell.edu/wex

This South Dakota guide was last verified against official sources in September 2026. Laws change — verify with your state court or a licensed attorney.

More South Dakota Estate Guides

• Contest a Will in South Dakota
• South Dakota Medicaid Estate Recovery
• Dying Without a Will in South Dakota
• South Dakota Probate Process
• When a Spouse Died With Debt
• All State Guides

Disclaimer: This guide is informational only and is not legal or tax advice. Estate, probate, and tax laws change and vary by state and county. Verify current rules and dollar figures with your state’s court, statute, or a licensed attorney or tax professional before acting. For urgent matters like an active probate or a tax deadline, consult a licensed professional in your state right away.