Estate Planning in South Dakota

Estate planning in South Dakota involves navigating a specific set of state laws that differ in important ways from neighboring states. Understanding these distinctions helps ensure your documents will be valid and your wishes carried out as intended.

Like all states, South Dakota recognizes formally executed wills and living trusts as valid estate planning tools. A standard will here requires 2SDCL 29A-2-502Verified Sep 16, 2026View source adult witnesses, and adding a notarized self-proving affidavit can streamline the probate process later. The state also recognizes holographic (handwritten) wills, though these have stricter proof requirements and are more vulnerable to legal challenges.

A South Dakota healthcare power of attorney is signed before either 2SDCL § 34-12D-3 (living will form; no statutory healthcare proxy form)Verified Jul 15, 2026View source witnesses or a notary publicSDCL § 34-12D-3 (living will form; no statutory healthcare proxy form)Verified Jul 15, 2026View source. Witnesses must be at least 18 yearsSDCL § 34-12D-3 (living will form; no statutory healthcare proxy form)Verified Jul 15, 2026View source old. The agent must be at least 18 yearsSDCL § 34-12D-3 (living will form; no statutory healthcare proxy form)Verified Jul 15, 2026View source old.

A South Dakota financial power of attorney must be notarizedSDCL § 59-12-3, § 59-12-4, § 59-12-5, § 59-12-6, § 59-12-8, § 59-12-23, § 59-12-41Verified Sep 20, 2026View source; witnesses are not required. It is not durable unless it says soSDCL § 59-12-3, § 59-12-4, § 59-12-5, § 59-12-6, § 59-12-8, § 59-12-23, § 59-12-41Verified Sep 20, 2026View source, in words such as “This power of attorney shall not be affected by disability of the principal”; without that language it ends when the principal becomes incapacitated. A springing power of attorney, one that takes effect only when the principal becomes incapacitated, is permittedSDCL § 59-12-3, § 59-12-4, § 59-12-5, § 59-12-6, § 59-12-8, § 59-12-23, § 59-12-41Verified Sep 20, 2026View source. The state adopted the Uniform Power of Attorney Act in 2020, modernizing its rules around financial powers of attorney. Documents created before 2020 may not reflect the current law’s protections.

South Dakota does not impose a state estate tax or inheritance tax, which means estates are only subject to the federal estate tax (currently exempting the first $15,000,00026 USC 2001(c), 2010; P.L. 119-21 §70106Verified Sep 15, 2026View source per person, or $30,000,00026 USC 2001(c), 2010; P.L. 119-21 §70106Verified Sep 15, 2026View source for married couples using portability). This is a meaningful advantage over the states that layer their own death taxes on top of the federal system.

South Dakota does not require a revocable living trust to be notarizedSDCL § 55-1-1 et seq.Verified Jul 15, 2026View source. South Dakota allows transfer-on-death deeds for real estate, enabling property to pass directly to named beneficiaries without probate. This is a significant probate avoidance tool that doesn't require creating a trust. Transferring a home into a revocable trust does not forfeit South Dakota's homestead exemption—the protection carries through to trust-held property. Transferring property into a revocable trust does not trigger a property tax reassessment in South Dakota, so property taxes remain at their current level.

South Dakota automatically revokes an ex-spouse as beneficiary on life insurance, retirement accounts, and similar designations upon divorce. However, these automatic revocations can be overridden by a divorce decree or by re-designating the ex-spouse after the divorce.

South Dakota fully authorizes remote online notarization (RON) for estate planning documents, including wills, trusts, healthcare directives, powers of attorney. RON covers the notarization step; whether the whole signing can happen remotely also depends on whether the document's witnesses may attend by video.