What the rule says
Wyoming has emerged as one of the leading trust situs jurisdictions in the United States, in significant part because of its extended perpetuity period. Wyo. Stat. § 34-1-139 permits trusts to continue for up to 1,000 years from the date of creation — the longest non-perpetual period among US states.
Comparison to other trust situs jurisdictions
| State | Perpetuity | State Income Tax (Trust) | DAPT | Notes | |-------|------------|--------------------------|------|-------| | Wyoming | 1,000 years | No | Yes | Emerging leader | | Alaska | No limit | No | Yes | First DAPT | | South Dakota | No limit (since 1983) | No | Yes | Comprehensive | | Delaware | No limit (personal); 110-yr (real) | No (non-resident) | Yes | Most established | | New Hampshire | No limit (since 2004) | No | Yes | NE option | | Nevada | 365 years | No | Yes | Strong DAPT | | Florida | 360 years | No | No | No DAPT |
Among states with a finite perpetuity period (rather than no limit), Wyoming's 1,000-year framework is by far the longest. The 1,000-year period is functionally equivalent to perpetual for any practical estate planning purpose — multi-generational wealth across 1,000 years substantially exceeds what any family is likely to project.
Wyoming Qualified Spendthrift Trust (DAPT)
Wyoming offers a Domestic Asset Protection Trust framework (the Wyoming Qualified Spendthrift Trust Act) under Wyo. Stat. § 4-10-510 et seq.:
- 4-year statute of limitations for fraudulent transfer challenges - Self-settled spendthrift trust with creditor protection - Specific procedural requirements for valid creation
Comprehensive trust framework
Wyoming offers:
- 1,000-year dynasty trusts - DAPT (Qualified Spendthrift Trust) - Directed trust statute - Decanting authority - Strong privacy protections - Private trust company framework
Tax efficiency
Wyoming imposes:
- No state income tax - No state estate tax - No state inheritance tax
Why Wyoming has emerged
Wyoming has rapidly emerged as a leading trust situs jurisdiction because:
1. Aggressive trust modernization. Wyoming has updated its trust code multiple times in recent decades to compete with Delaware, Nevada, and South Dakota. 2. Combination of features. 1,000-year trusts + DAPT + no state taxes is a competitive package. 3. Privacy framework. Wyoming offers strong privacy protections for trust matters. 4. Lower costs. Wyoming trust administration costs are often lower than Delaware or Nevada. 5. Growing trustee infrastructure. Wyoming's trust company industry has expanded significantly.
Wyoming is positioned as an alternative to the more established trust situs states, offering similar features with potentially lower costs.
What you can do about it
For high-net-worth individuals considering dynasty trusts:
- Engage Wyoming counsel. Trust situs planning requires specialized expertise. - Establish substantial Wyoming nexus. Independent Wyoming trustee, Wyoming governing law, Wyoming situs. - Coordinate with overall estate planning. - Compare to other trust situs states. DE, NV, AK, SD each have specific frameworks.
Who this affects most
Wyoming's trust situs framework is most consequential for:
- High-net-worth families seeking dynasty trust planning - Estate planners coordinating advanced wealth planning - Family offices managing intergenerational wealth - Out-of-state residents establishing Wyoming-situs trusts - Cost-conscious clients comparing to more established trust situs states
Wyoming is among the most rapidly emerging trust jurisdictions in the United States. Combined with no state income, estate, or inheritance tax, Wyoming offers comprehensive trust planning advantages. The framework requires specialized expertise; it is not a DIY tool.