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How does Washington law treat minor beneficiaries in a will?

On Behalf of | Dec 1, 2025 | Estate Planning |

When creating a will in Washington, it’s important to understand how the state handles minor beneficiaries. Minors, or individuals under the age of 18, cannot legally manage inherited property or money. Washington law provides clear instructions on how to manage their inheritance until they become adults.

Guardianship and custodianship of minor beneficiaries

Washington law requires that a guardian or custodian manage a minor beneficiary’s inheritance. The court typically appoints this person, who will oversee the inheritance until the minor turns 18 or a specified age. The guardian could be a parent, relative, or someone else selected by the will-maker, as long as the court approves the appointment. The custodian or guardian makes decisions on behalf of the minor, ensuring the inheritance is used for their benefit.

Setting up a trust for a minor beneficiary

Another way to manage a minor beneficiary’s inheritance is by creating a trust. In this case, the will names a trustee to manage the assets until the minor reaches a certain age, typically 18 or 25. The trustee must follow the will’s instructions to ensure the inheritance serves the minor’s needs. Trusts provide a clear structure for handling significant sums, offering control over the distribution of assets until the beneficiary is mature enough to manage them independently.

The court’s role in overseeing minor inheritances

Washington law allows the court to intervene in situations where a minor inherits a substantial amount. If a minor beneficiary’s inheritance is significant, the court may require a supervised guardianship or trust to ensure that the minor’s interests are protected. This ensures that a responsible party handles the inheritance until the minor becomes capable of managing it themselves.

Proper planning is essential when leaving an inheritance to a minor. By using custodianships, trusts, or guardianships, you can ensure that your minor beneficiaries are well taken care of and their inheritance is managed responsibly.

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