Understanding Washington State’s New Uniform Custodial Trust Act (SB 5037 / Chapter 111, Laws of 2025)

At Althauser Rayan Abbarno, our estate planning and trust attorneys have proudly served individuals and families across Washington State since 1946. We are committed to keeping our clients informed about legislative developments that impact estate planning. One such significant development is the enactment of Senate Bill 5037, which introduces the Uniform Custodial Trust Act into Washington law.


What Is the Uniform Custodial Trust Act?

Senate Bill 5037, signed into law on April 22, 2025, and effective from July 27, 2025, enacts the Uniform Custodial Trust Act in Washington State. This legislation provides a streamlined method for individuals to establish custodial trusts, allowing assets to be managed by a designated custodian for the benefit of another person, known as the beneficiary. The Act is particularly beneficial for planning for minors, individuals with disabilities, or others who may require assistance in managing their financial affairs.


Key Features of the New Law

  • Simplified Trust Creation: The Act allows for the creation of custodial trusts without the need for complex trust documents. A simple written statement designating a custodian and beneficiary suffices, making it more accessible for individuals to establish trusts.
  • Flexible Management: Custodians have the authority to manage and invest the trust property prudently, with the obligation to act in the best interest of the beneficiary. This flexibility ensures that the trust can adapt to the beneficiary’s changing needs.
  • Protection for Beneficiaries: Assets held in a custodial trust are protected from the beneficiary’s creditors, providing a layer of financial security.
  • Termination Provisions: The Act outlines clear conditions under which a custodial trust terminates, such as when the beneficiary reaches a certain age or upon their death, ensuring that the trust’s purpose is fulfilled appropriately.

Implications for Estate Planning

The introduction of the Uniform Custodial Trust Act offers a valuable tool for estate planning in Washington State. It simplifies the process of setting aside assets for the benefit of others, particularly in situations where establishing a traditional trust may be unnecessary or burdensome. This can be especially useful for:

  • Minor Beneficiaries: Parents or grandparents can establish custodial trusts to manage assets for minors until they reach adulthood.
  • Individuals with Disabilities: The Act provides a mechanism to support individuals with disabilities without affecting their eligibility for certain public benefits.
  • Short-Term Trust Needs: For situations requiring temporary management of assets, custodial trusts offer a straightforward solution.

How Althauser Rayan Abbarno Can Assist

Our experienced estate planning attorneys are well-versed in the nuances of Washington State’s trust laws, including the new Uniform Custodial Trust Act. We can help you determine whether a custodial trust aligns with your estate planning goals and guide you through the process of establishing one.

Since 1946, Althauser Rayan Abbarno has been dedicated to providing personalized legal solutions to individuals and families throughout Washington State. We understand that each client’s situation is unique, and we are committed to crafting estate plans that reflect your specific needs and objectives.


Contact Us Today

To learn more about how the Uniform Custodial Trust Act may benefit your estate planning strategy, or to discuss other estate planning tools, please contact Althauser Rayan Abbarno. Our knowledgeable attorneys are here to provide the guidance and support you need to secure your financial future and protect your loved ones.

Disclaimer: This article is for informational purposes only and does not constitute legal advice. For personalized legal guidance, please consult with a qualified attorney.