Can You Disinherit a Spouse? Elective Share Litigation in South Dakota

Opening a deceased spouse's Last Will and Testament in Sioux Falls or Rapid City only to discover that you have been completely written out in favor of children from a prior marriage, distant relatives, or a private trust is a devastating shock. Many grieving husbands and wives mistakenly believe that if their name is omitted from the will-or if the decedent moved millions of dollars in ranch land and investment accounts into a revocable living trust before passing-they are left with nothing.

South Dakota law fiercely rejects the total disinheritance of a legal spouse. As the South Dakota Supreme Court emphasized in In re Estate of Amundson, 621 N.W.2d 882 (SD Supreme Court 2001) and In re Estate of Karnen, 607 N.W.2d 32 (SD Supreme Court 2000), marriage is treated as an economic partnership under the Uniform Probate Code. Through a powerful statutory mechanism known as the elective share under S.D. Codified Laws § 29A-2-202, a surviving spouse can override a disinheriting will and claw back a substantial percentage of both probate and nonprobate assets.

Calculating the Augmented Estate and Sliding-Scale Share in South Dakota

Unlike states that grant a flat one-third share even for a three-month marriage, South Dakota calculates the surviving spouse's elective share using a statutory sliding scale based on the exact length of the marriage under S.D. Codified Laws § 29A-2-202(a). Starting at 3% after 1 year of marriage, the entitlement climbs by 3% per year during the first ten years and 4% per year thereafter until reaching the maximum 50% after 15 years or more of marriage. Additionally, under S.D. Codified Laws § 29A-2-202(b), if the surviving spouse's combined assets and elective share total less than $50,000, the spouse is entitled to a supplemental elective-share amount up to $50,000.

Even more importantly, this percentage is not merely applied to the money left in the probate checking account. Under S.D. Codified Laws § 29A-2-203, the percentage is multiplied against the entire augmented estate, which combines four statutory buckets:

1. Decedent's Net Probate Estate (S.D. Codified Laws § 29A-2-204): All real and personal probate property reduced by funeral and administration expenses, homestead allowances, family allowances, exempt property, and enforceable creditor claims.
2. Decedent's Nonprobate Transfers to Others (S.D. Codified Laws § 29A-2-205): Assets the decedent transferred outside of probate via revocable trusts, joint tenancy with right of survivorship, payable-on-death (POD) bank accounts, life insurance proceeds, and gifts made within 2 years of death.
3. Decedent's Nonprobate Transfers to the Surviving Spouse (S.D. Codified Laws § 29A-2-206): Joint accounts, pensions, or life insurance already passing to the surviving spouse.
4. Surviving Spouse's Own Property (S.D. Codified Laws § 29A-2-207): The surviving spouse's net assets multiplied by the same marital-duration percentage, which is credited against the final elective share under S.D. Codified Laws § 29A-2-209.

High-Stakes Elective Share Litigation Micro-Niches in South Dakota

Litigating the Validity of Prenuptial and Postnuptial Agreements

Executors and stepchildren frequently wave a prenuptial or postnuptial agreement to block a surviving spouse's elective share. However, under S.D. Codified Laws § 29A-2-213 and the South Dakota Uniform Premarital Agreement Act (S.D. Codified Laws § 25-2-21), a written waiver of the elective share is not enforceable if the surviving spouse proves that:

• The spouse did not execute the waiver voluntarily (such as signing under duress on the eve of the wedding); or
• The agreement was unconscionable when executed and, before signing, the spouse was not provided a fair and reasonable disclosure of the decedent's property and financial obligations, did not voluntarily and expressly waive that disclosure in writing, and did not have adequate independent knowledge of the decedent's wealth.

Fighting Hidden Assets Transferred to Trusts Before Death

Because South Dakota is famous for asset protection trusts, wealthy spouses sometimes attempt to defeat a future elective share by secretly transferring ranch land, LLC interests, or brokerage portfolios into trusts shortly before dying. Under S.D. Codified Laws § 29A-2-205, the augmented estate automatically recaptures any property over which the decedent retained a power to revoke or consume, any transfer where the decedent retained possession or income right before death, and any transfer made within 2 years before death to the extent the aggregate transfers to any one person exceeded $10,000 in a calendar year. Even if the decedent used a South Dakota Domestic Asset Protection Trust (DAPT), S.D. Codified Laws § 55-16-15 only shields qualified dispositions from a spouse if the transfer occurred before the marriage or with specific statutory notice-and under S.D. Codified Laws § 29A-2-210, nonprobate recipients can be held personally liable to pay their proportional share of your award.

Rights of Estranged, Separated, or Divorcing Spouses

What if you and your spouse were living in separate homes in Sioux Falls and Rapid City, or were in the middle of a bitter divorce when your spouse died? Under S.D. Codified Laws § 29A-2-802, a person is no longer a surviving spouse only if a final decree of divorce, annulment, or termination of all marital property rights has been entered by a court. Mere physical separation, estrangement, or a pending divorce action where no final decree was signed before death does not terminate your right to claim up to 50% of the augmented estate in South Dakota.

Step-by-Step Process in South Dakota to Claim Your Elective Share

Whether the decedent passed away in Sioux Falls, Rapid City, Aberdeen, Brookings, or Mitchell, the elective share is governed by an unforgiving statutory clock that begins ticking the moment your spouse dies.

Step 1: Calculate the Strict 9-Month / 4-Month Statutory Deadline

Under S.D. Codified Laws § 29A-2-211(a), you must make the election within 9 months after the date of the decedent's death, or within 4 months after the admission to probate of the decedent's will, whichever occurs later. However, for nonprobate transfers under S.D. Codified Laws § 29A-2-205, the nonprobate assets are excluded from the augmented estate if you file more than 9 months after death unless you obtain a court-ordered time extension within that initial 9-month period under S.D. Codified Laws § 29A-2-211(b).

Step 2: File the Petition for Elective Share in Circuit Court

Prepare and file a formal verified Petition for the Elective Share along with Form UJS-232, South Dakota, Unified Judicial System, Case Filing Statement in the Circuit Court for the county where the decedent was domiciled-such as the Minnehaha County Circuit Court, Second Judicial Circuit, Sioux Falls, the Pennington County Circuit Court, Seventh Judicial Circuit, Rapid City, the Brown County Circuit Court, Fifth Judicial Circuit, Aberdeen, the Brookings County Circuit Court, Third Judicial Circuit, Brookings, or the Codington County Circuit Court, Third Judicial Circuit, Watertown-and serve a copy on the personal representative.

Step 3: Claim Statutory Homestead, Exempt Property, and Family Allowances

Under S.D. Codified Laws § 29A-2-202(c), your right to the elective share is in addition to your statutory Homestead Allowance (S.D. Codified Laws § 29A-2-402), your Exempt Property entitlement under S.D. Codified Laws § 29A-2-402 and S.D. Codified Laws § 43-45-4 (up to $7,000 for a head of family or $5,000 for others, plus absolutely exempt items under S.D. Codified Laws § 43-45-2), and a reasonable Family Allowance during estate administration (up to $18,000 lump sum or $1,500 per month for one year without prior court approval under S.D. Codified Laws § 29A-2-403).

Step 4: Serve Formal Notice on All Nonprobate and Trust Recipients

Under S.D. Codified Laws § 29A-2-211(c), you must give formal notice of the time and place of the elective share hearing to all persons interested in the estate and to the distributees and recipients of portions of the augmented estate whose interests could be adversely affected-such as trustees of living trusts and beneficiaries of POD accounts.

Step 5: Conduct Financial Discovery to Reconstruct the Augmented Estate

Your probate litigator will subpoena federal tax returns, Form 706, Federal, Internal Revenue Service, United States Estate (and Generation-Skipping Transfer) Tax Return (if filed), trust agreements, deed transfers from the past two years, and appraisal reports to value every asset in the four augmented estate buckets, consistent with valuation standards in In re Estate of Brownlee, 654 N.W.2d 206 (SD Supreme Court 2002).

Step 6: Obtain a Court Order Compelling Contribution

After the hearing, the Circuit Court Judge will determine the exact dollar amount of your elective share and enter a binding order directing the personal representative and nonprobate trust recipients to pay your share under S.D. Codified Laws § 29A-2-209 and S.D. Codified Laws § 29A-2-211(d). Connect with a South Dakota probate litigation attorney in our directory to ensure your petition is filed before the 9-month deadline expires.

How Much Does It Cost in South Dakota?

Asserting your spousal inheritance rights in South Dakota involves the following court and legal costs:

• Circuit Court Filing Fees ($25 to $75): Under S.D. Codified Laws § 16-2-29, opening a probate estate costs $75, while filing an ancillary civil or trust action costs $25 (filing a motion or petition inside an already open South Dakota probate docket generally carries $0 additional clerk fee).
• Real Estate and Business Appraisals ($1,500 to $6,000): Valuing agricultural acreage, Black Hills vacation homes, or closely held business shares for the augmented estate calculation typically costs $1,500 to $6,000.
• Spousal Immediate Cash Flow ($25,000+): By immediately claiming the exempt property allowance (up to $7,000 under S.D. Codified Laws § 43-45-4) and up to $18,000 in family allowance under S.D. Codified Laws § 29A-2-403, a disinherited spouse can often secure early living and legal funds of $25,000+ that take priority over unsecured creditors and will beneficiaries.
• Probate Attorney Fees ($250 to $450/Hour or Percentage Agreement): South Dakota estate litigators typically bill $250 to $450 per hour, or structure a contingency or deferred-fee arrangement paid out of the recovered elective share.

How Long Does the Process Take?

Elective share litigation in South Dakota is governed by strict statutory time limits:

• Mandatory Filing Deadline (9 Months After Death): Under S.D. Codified Laws § 29A-2-211, the petition must be filed within 9 months after death (or 4 months after the admission of the will to probate, though waiting past 9 months without a court extension forfeits nonprobate trust inclusion).
• Uncontested Calculation & Payout (3 to 6 Months): When the augmented estate assets are liquid and undisputed, the elective share is typically calculated and paid within 3 to 6 months.
• Contested Prenup or Trust Litigation (9 to 18 Months): If the estate disputes the validity of a prenuptial agreement or hides nonprobate transfers, discovery and trial in a South Dakota Circuit Court generally take 9 to 18 months.

Frequently Asked Questions (FAQ)