Delaware Allows Personal Property Trusts to Exist in Perpetuity to Avoid Generation-Skipping Transfer Tax
The maximum U.S. federal estate tax rate is 40%, applied to the portion above the exemption amount. In 2026, the individual lifetime exemption amount (including the gift tax and generation-skipping transfer tax exemption) is $15 million, and for married couples combined it can reach $30 million. The generation-skipping transfer tax (GST tax) is imposed separately on transfers that skip a generation, with a maximum tax rate of 40% as well.
Most states have traditionally applied the Rule Against Perpetuities, limiting the duration of trusts. Delaware Code Title 25 Section 503 provides that the common-law Rule Against Perpetuities does not apply to personal property held in a trust, and the trust may exist in perpetuity; a 110-year limit applies to directly held real estate. States such as South Dakota also allow perpetual trusts.
A dynasty trust is usually an irrevocable trust, into which the settlor transfers assets during the trust’s existence using the GST exemption. If the exemption fully covers the transferred assets, the trust receives a zero inclusion ratio, and later distributions to descendants no longer trigger estate tax or GST tax. Beneficiaries may receive income or principal according to the trust document, but ownership of the assets belongs to the trust itself and does not enter the beneficiaries’ taxable estates.
Original sources:
Title: Delaware Code Title 25 Sec. 503 – Rule against perpetuities Publisher: Delaware Code (official) Publication date: current URL: https://www.lawserver.com/law/state/delaware/de-code/delaware_code_title_25_503 Nature of source: state statute Verification status: actually read in this review, verification date 2026-10-26 Supporting content: personal property in a trust is not subject to the common-law Rule Against Perpetuities; real estate is subject to the 110-year rule
Title: What Is a Dynasty Trust? 2026 GST Rules and State Limits Publisher: Haute Living / Haute Lawyer Publication date: 2026-10-21 URL: https://hauteliving.com/hautelawyer/legal-questions/estate-planning/what-is-a-dynasty-trust Nature of source: legal and wealth-planning analysis Verification status: actually read in this review, verification date 2026-10-26 Supporting content: 2026 GST exemption of $15 million per person; Delaware places no time limit on personal property in trusts; South Dakota has abolished the common-law rule
Title: 2026 Estate and Gift Tax Update Publisher: Nelson Mullins Publication date: 2026-10 URL: https://www.nelsonmullins.com/insights/blogs/tax-reports/all/2026-estate-and-gift-tax-update Nature of source: law firm tax update Verification status: actually read in this review, verification date 2026-10-26 Supporting content: 2026 lifetime exemption of $15 million per person (OBBBA effective), maximum tax rate 40%
Title: Using a Dynasty Trust for Generational Wealth Publisher: Charles Schwab Publication date: 2026-07 URL: https://www.schwab.com/learn/story/case-establishing-dynasty-trust Nature of source: financial institution educational content Verification status: actually read in this review, verification date 2026-10-26 Supporting content: a dynasty trust fully covered by the GST exemption no longer bears transfer tax for later generations; ownership of the assets belongs to the trust
ABAB AI Insight
The core mechanism of a dynasty trust is the separation of ownership of assets from beneficial interests. After the settlor transfers assets into an irrevocable trust within the exemption amount, the trust becomes the legal owner. As long as the trust document does not give beneficiaries ownership or control of the assets, the assets are not included in the beneficiaries’ taxable estates upon their deaths, thereby avoiding a 40% federal estate tax at each generation. At the same time, by fully allocating the GST exemption, the trust obtains a zero inclusion ratio, and later distributions to grandchildren and more remote descendants no longer trigger generation-skipping transfer tax.
Delaware’s legislative choice is an explicit exclusion of the common-law Rule Against Perpetuities. Historically, that rule required interests to vest within a “life in being plus 21 years” period in order to prevent property from being locked up indefinitely. Delaware eliminates this limit for personal property held in trusts, such as stocks, bonds, and limited liability company interests, allowing the trust to theoretically exist in perpetuity. A 110-year limit remains for directly held real estate, but through a structure in which real estate is held by an entity, the personal-property rule can apply.
This structure is not tax-free without conditions. The tax benefit depends on correctly and fully allocating the GST exemption at the time of formation, and the trust must remain irrevocable and must not grant beneficiaries rights that would cause estate-tax inclusion. The trust itself may still owe income tax on distributable income. States also differ in their treatment of creditor protection and division of property in divorce, and the protection provided by Delaware is not absolute or uniformly applicable in all situations.
The indicators to watch are legislative amendments to state Rule Against Perpetuities laws, annual adjustments to the federal exemption amount, and specific tax-court rulings on whether trust terms cause assets to be included in a beneficiary’s estate.
ABAB News · Cognitive Law
When a trust separates ownership of assets from beneficial interests, the assets may, subject to the exemption-allocation conditions, remain out of the taxable estates of multiple generations of beneficiaries.
Delaware’s exclusion of personal property held in trusts from the Rule Against Perpetuities removes the traditional “life in being plus 21 years” limit on trust duration.
A zero inclusion ratio depends on fully allocating the GST exemption at formation; later growth and distributions no longer trigger generation-skipping transfer tax, but trust income may still be taxable.