Technical article
What if the Trust's Terms Turn Out Wrong in Ten Years?
A need for different distribution terms may point toward decanting, if the state allows it and the trustee has the power.
Imagine a couple who sign an irrevocable trust today for their grandchildren. Ten years pass. A tax rule changes, or a family circumstance does. The terms that looked sensible no longer fit. Can the trust be changed?
Irrevocable does not mean frozen. It means the settlor cannot simply undo it. The sources name four ways to change one.
Four routes
| Route | How it works | Limits the sources name |
|---|---|---|
| Decanting | The trustee moves assets into a new trust with different terms | About 42 states had a decanting law by September 2025, up from about 23 in a 2016 article. Roughly half follow the Uniform Trust Decanting Act. The trustee generally needs power to invade principal. The new trust must include an old beneficiary and cannot add new ones. |
| Non-judicial settlement agreement | The interested people sign an agreement to change the terms | Under the Uniform Trust Code, minor terms can change this way. Material terms usually need court approval. About 36 states and jurisdictions had some version of the code by 2022. |
| Court modification or reformation | A judge changes or corrects the terms | Courts are reluctant to override the settlor's wishes. It can be costly and public. |
| Protector power | A protector, named in the deed, amends or moves the trust | Only works if the deed includes the power. |
The protector route in two places
South Dakota's law lists 18 powers a protector can be given. Among them are amending for tax law changes, changing the place or governing law of the trust, removing and appointing a trustee or adviser, and ending the trust. The powers bind all others.
In Nevada the protector's powers come from the deed and are exercised at the protector's discretion. They may include changing the deed to get a better tax status, to respond to changes in federal or state law, or to use changes in the rules on how long a trust may last. Nevada makes protectors and advisers submit to Nevada courts. A Nevada protector's decisions bind everyone.
Reading the table
The route that fits depends on what went wrong. A tax rule change points toward a protector power written for exactly that. A change of home for the family may point toward a change of place or governing law, which South Dakota lists. A need for different distribution terms may point toward decanting, if the state allows it and the trustee has the power.
Each route has a different price in time and privacy. A judge can make the process costly and public, as the sources note. A settlement agreement or a protector clause involves no judge. The sources do not rank the routes by cost beyond that.
The route also depends on who has to agree. Decanting needs a trustee with the right power. A settlement agreement needs the interested people to sign. A court needs a petition. A protector uses a power written into the deed.
You could
You could ask the lawyer which of the four routes the state allows. You could ask whether the deed has a protector clause for tax and law changes, and who may use it. You could ask what happens to the clause if the protector dies.
Looking back at a document you signed ten years ago, what would you want to change today? Share it here. Someone else may be about to sign.
Figures are estimates for planning, based on public data. Date read: October 2026.
Sources
- ArentFox Schiff trust modification alert, September 2025 (B)
- Financial Planning Association Journal, March 2016 (B)
- ACTEC count of Uniform Trust Code states, 2022 (B)
- South Dakota Legislature, statute 55-1B-6 (A)
- Nevada Legislature, statutes 163.5553 and 163.5555 (A)
- RMO LLP guide to trust protectors, 2026 (C)
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