Can a dynasty trust survive generations without a sunset

Dwight just discovered his grandfather’s trust—created in 1995—is about to terminate. Despite meticulous planning, the original 21-year term stipulated in the trust document is expiring, and his children will receive a distribution next month. He’s facing a potential $3.2 million tax bill he wasn’t prepared for, and a lost opportunity to provide for his grandchildren’s future. This scenario highlights a critical issue with older trusts: the lack of provisions for indefinite duration.

The concept of a dynasty trust—a trust designed to benefit multiple generations—has gained significant traction, but achieving true generational wealth transfer requires careful drafting to avoid statutory limitations. For decades, the Rule Against Perpetuities (RAP) posed a major obstacle. This common law rule, designed to prevent property from being tied up indefinitely, generally limited the duration of trusts to 21 years plus the life of someone alive at the trust’s creation. While many states have abolished or modified RAP, California previously held a strict interpretation, creating significant challenges for long-term wealth planning.

Fortunately, California adopted the Uniform Statutory Rule Against Perpetuities (USRAP), generally limiting a Dynasty Trust’s existence to 90 years unless specific ‘savings clauses’ or jurisdiction-shifting provisions are drafted. This means that without proper planning, even a well-funded trust can have a predetermined lifespan, prematurely terminating and subjecting assets to estate and gift taxes. A 90-year term, while longer than the historical 21-year rule, still may not align with the client’s long-term goals of providing for descendants several generations removed.

To truly circumvent the 90-year limitation, trust drafters utilize several techniques. One common approach is the “perpetual duration clause,” combined with a choice-of-law provision specifying the laws of a state with a more permissive rule. Some states, like South Dakota and Nevada, have abolished the Rule Against Perpetuities altogether, allowing for trusts of unlimited duration. However, simply selecting a different state’s law isn’t always sufficient. The trust must have a valid nexus to that state—often requiring an independent trustee located there. This adds complexity and cost, demanding careful consideration of administrative burdens.

Beyond the RAP, the OBBBA set the Federal GST Tax Exemption to $15 million per person; properly allocating this exemption is the only way to shield future generations from an immediate 40% tax on distributions. Failing to utilize the GST exemption effectively can negate the benefits of a long-term trust, as distributions to skip persons (grandchildren and beyond) will be subject to this hefty tax. We, as estate planning attorneys and CPAs, are uniquely positioned to maximize GST exemption allocation because we understand the interplay between trust law and tax implications—a crucial benefit many attorneys lack. With over 35 years of experience, I’ve consistently found that proactive tax planning is as important as the trust document itself.

Properly structuring a dynasty trust also requires addressing potential changes in state law. While a jurisdiction-shifting provision can provide some flexibility, it’s essential to anticipate future legislative amendments that could impact the trust’s validity or tax treatment. For example, Prop 19 impacts property tax implications. Under Prop 19, holding a family home in a Dynasty Trust for grandchildren triggers a full property tax reassessment unless the grandchild lives in the home as their primary residence and the parent is deceased (subject to strict value limits). This means carefully considering the location and type of assets held within the trust.

Furthermore, the digital age presents new challenges. Without specific RUFADAA language (Probate Code § 870), service providers like Coinbase or Google can legally block your trustee from accessing digital wallets intended for future generations. This necessitates proactive planning for digital asset access and control, ensuring future trustees can manage these assets effectively. Similarly, the rules surrounding business interests are evolving. As of March 2025, domestic U.S. LLCs held in Dynasty Trusts are exempt from mandatory BOI reporting; however, trustees managing foreign-registered entities must still file updates within 30 days to avoid fines of $500/day per the FinCEN 2025 Exemption.

Finally, when dealing with estates below the threshold for full probate, clients often misunderstand the options. For deaths on or after April 1, 2025, a primary residence up to $750,000 held outside the trust qualifies for a ‘Petition for Succession’ under AB 2016 (Probate Code § 13151). It’s critical to clarify that this is a Petition (requiring a Judge’s order), not an Affidavit, and has specific requirements. The Small Estate Affidavit (<$69,625) remains an option for significantly smaller estates, but lacks the long-term protection of a properly drafted and funded dynasty trust.

What failures trigger court intervention and contests in California trust administration?

The advantage of a California trust is control and continuity, but this relies entirely on accurate funding and disciplined administration. Without clear asset titles and strict adherence to fiduciary standards, a private trust can quickly become a subject of public litigation over mismanagement, capacity, or undue influence.

California trust planning is most effective when the structure is matched to the specific family goal and assets are fully funded into the trust name. When administration is handled with transparency and adherence to the Probate Code, the trust can fulfill its promise of privacy and efficiency.

Verified Authority on California Dynasty Trust Administration

• Trust Duration Limits (USRAP): California Probate Code § 21205 (90-Year Rule)
  The governing statute for the Uniform Statutory Rule Against Perpetuities. Unlike states that allow “forever” trusts, California generally limits a Dynasty Trust’s validity to 90 years, requiring careful drafting to avoid premature termination.
• GST Tax Exemption: IRS Generation-Skipping Transfer Tax
  Detailed guidelines for 2026. Effective January 1, 2026, the GST Tax Exemption is permanently set at $15 million per person, allowing for massive tax-free wealth transfer to grandchildren if allocated correctly on Form 709.
• Property Tax Reassessment (Prop 19): California State Board of Equalization (Prop 19)
  Crucial for Dynasty Trusts holding real estate. Prop 19 severely limits the ability to pass low property tax bases to grandchildren. Transfers to a trust for the benefit of grandchildren generally trigger immediate reassessment to current market value unless the intervening parent is deceased.
• Primary Residence Succession (AB 2016): California Probate Code § 13151 (Petition for Succession)
  If a residence intended for the trust was accidentally left out, this statute (effective April 1, 2025) allows a “Petition for Succession” for homes valued up to $750,000, avoiding a full probate proceeding.
• Digital Asset Access (RUFADAA): California Probate Code § 870 (RUFADAA)
  The authoritative resource on digital assets. Without specific RUFADAA language in the Dynasty Trust, multi-generational access to crypto wallets and digital archives can be legally blocked by service providers.
• Business & LLC Compliance (FinCEN): FinCEN – Beneficial Ownership Information (BOI)
  The Corporate Transparency Act applies to most Dynasty Trusts holding LLCs. Trustees must file a Beneficial Ownership Information (BOI) report for both domestic and foreign entities. Failure to report changes within 30 days can result in federal civil penalties of $500/day.