The federal estate tax exemption — $13.99 million per individual in 2025, indexed for inflation — means most families will never owe federal estate tax. Yet dynasty trusts, the multi-generational vehicles designed to hold wealth outside the transfer-tax system indefinitely, have never been more popular. The explanation lies not in Washington but in Tallahassee.
At common law, the rule against perpetuities limited trusts to roughly 90 to 120 years. Wealth placed in trust would eventually vest outright in beneficiaries — exposed, at each generational transfer, to estate tax, creditors, and divorce. More than thirty states have now abolished or extended the rule. Florida went furthest: in 2021, the legislature extended the permissible trust duration to 1,000 years.
A thousand years is, for estate-planning purposes, forever. A properly structured Florida dynasty trust can hold appreciating assets — closely held business interests, real estate, investment portfolios — across dozens of generations without ever triggering estate tax at the trust level. The compounding advantage over a century is difficult to overstate.
Three forces are converging. First, the generation that built America's postwar business wealth is transferring it now — the largest intergenerational wealth transfer in history, estimated in the tens of trillions. Second, state-level trust law competition has made jurisdiction selection a genuine strategic decision; families are actively moving existing trusts to Florida, South Dakota, and Nevada. Third, the exemption itself is scheduled to sunset: without congressional action, it reverts to roughly half its current level after 2025, creating urgency around large gifts into trust structures.
A trust designed to last a millennium needs a trustee built to last. Families establishing dynasty trusts evaluate trustees on permanence, judgment, and independence — and, inevitably, on presence. A trustee headquartered where the family actually lives, with a name that reflects the community it serves, carries an advantage no marketing budget can manufacture.
The dynasty trust boom is ultimately a story about time horizons. Families thinking in centuries choose fiduciaries they believe will be there for the duration. Everything else — the name, the place, the reputation — is how they judge.
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