How does adoption affect inheritance and estate planning in Washington?

In Washington, a stepparent adoption makes you the child's legal parent through a Superior Court decree, and that legal relationship is the foundation for inheritance and estate planning. The specific inheritance rules, such as what a child receives if you die without a will, are not something we can state for your situation here. Please confirm them with an attorney or the Superior Court clerk in your county.

Why adoption matters for your estate plan: Without an adoption, a stepchild is not your legal child. A finalized decree under Revised Code of Washington Chapter 26.33 changes that. It also brings related protections, such as eligibility for Social Security survivor benefits and legal decision-making security for your child.

Steps to take after the decree:

• Wills: Have your will reviewed and name your child clearly.
• Life insurance and retirement accounts: Check your beneficiary forms and update them so they match your wishes.
• Trusts: If you have a family trust, ask an attorney how your adopted child fits into its wording.
• Other family documents: Review any documents that name your children or "heirs" to be sure they say what you intend.

Timing: In Washington, a stepparent adoption typically takes 3-6 months. Until the decree is entered, your estate plan should not assume the adoption is complete. Ask an attorney about interim planning, especially if you have concerns about your health.

The other biological parent: How the other parent's legal status changes, and whether their consent is needed, depends on your facts. Washington sets no fixed number of months for abandonment. It depends on the parent's overall conduct (RCW 26.33.120). If this is contested, or the other parent is unknown or unreachable, talk to an attorney or the Superior Court clerk about your specific case.

Consent from an older child: An adoptee who is 14 or older must consent (RCW 26.33.160). That matters if your stepchild is a teenager.

Adult stepchildren: Washington permits adult adoption. The statute says any person may be adopted regardless of age (RCW 26.33.140). The adoptee must consent, and if you are married, your spouse must join the petition (RCW 26.33.150(4)). Parental consent is required only for adoptees under 18 (RCW 26.33.160). Home study reports are not required for an adoptee who is 18 or older (RCW 26.33.220). If you are considering this to simplify inheritance, an attorney can explain how it fits with the rest of your plan.