South Dakota
The leading U.S. trust jurisdiction. Perpetual dynasty trusts since 1983, no state income tax on trusts, the directed-trustee statute, a robust asset-protection regime, and an established infrastructure of state-chartered trust companies built around the framework.
Why this jurisdiction matters
South Dakota deliberately built a trust jurisdiction beginning in the 1980s. Statutory reforms abolished the rule against perpetuities (1983), established the directed-trustee construct, recognized statutory protectors, enabled decanting, and tightened asset-protection-trust provisions. The result is a state with one of the largest trust-asset bases in the United States — held in state-chartered trust companies serving non-resident families across the country and abroad.
The relevant tax regime
- No state income tax. South Dakota imposes no individual or corporate income tax. Non-grantor trusts sited in South Dakota with no Dakota beneficiary connection generally pay no state income tax on accumulated income.
- State sales tax. 4.5% state rate (with municipal additions). Relatively low.
- No state estate or inheritance tax.
- Trust franchise tax. Modest annual fee for state-chartered trust companies.
Registration or residency mechanics
Trust situs in South Dakota requires:
- South Dakota trustee (institutional or individual; institutional trustees are state-chartered trust companies licensed by the Division of Banking).
- Administrative activities in South Dakota.
- South Dakota choice-of-law and forum-selection provisions in the trust instrument.
- For asset-protection-trust statutes: compliance with 55-16-1 through 55-16-17 specific requirements.
Reporting and disclosure
Trust records are private. State law specifically permits "quiet trusts" — trusts where beneficiaries can be kept unaware of trust existence for defined periods. SD Codified Laws §55-2-13 governs beneficiary notice limitations. CTA BOI reporting applies to LLCs used in conjunction with trusts.
The substance question
The §301.7701-7 domestic-trust test (court and control) requires that a U.S. court exercise primary supervision and a U.S. person control substantial decisions. South Dakota satisfies both readily. The substance question is whether the connection to South Dakota is sufficient to make it the trust's state of residence for state income tax (and to displace another state's connection-based residency claim). Kaestner, 588 U.S. 262 (2019), limits the reach of state residency claims based purely on resident beneficiaries, supporting South Dakota's role.
Recent changes
South Dakota statutes are updated annually with refinements to trust law, asset protection, and decanting. The state continues to compete with Delaware, Nevada, and Alaska for trust business. The 2021 Pandora Papers disclosures included substantial South Dakota trust assets, producing reform discussion that has not resulted in major statutory changes.
Common asset classes parked here
- Dynasty trusts holding family LLCs holding luxury assets (yachts, art, real estate).
- Domestic asset-protection trusts under SD Codified Laws ch. 55-16.
- Quiet trusts for sensitive family situations.
- Insurance-funded irrevocable life insurance trusts.
Primary Sources
- South Dakota Codified Laws ch. 55 (trusts).
- SD Codified Laws §55-1-30 (perpetuities abolition for personal property in trust).
- SD Codified Laws ch. 55-16 (qualified disposition in trust act).
- SD Codified Laws §55-2-13 (beneficiary notice).
- North Carolina Department of Revenue v. Kaestner, 588 U.S. 262 (2019).
- South Dakota Division of Banking — trust company supervision.
Reviewed May 2026