How Does Estate Planning Work in Washington?

Probate on a $500,000 estate in Washington costs an estimated $27,599 and takes 4 months to 6 months for a simple estate, with attorney fees of typically 2.2% to 3.5% of the estate. Estates under $100,000 can use a small-estate procedure instead.

A simple estate in Washington typically takes 4 months to 6 months through probate, and an average estate 6 months to 9 months; a contested one runs longer. The creditor claim period of 4 months is the floor. A funded revocable trust avoids probate entirely.

Washington has not adopted the Uniform Trust Code and does not require witnesses for trust execution. Notarization is not required for validity, though many financial institutions require notarized trust documents. The successor trustee can publish Washington's optional creditor notice to shorten the claim window to 4 months; without it, the settlor's creditors have up to 24 months to bring a claim.

A healthcare power of attorney in Washington requires 2 witnesses or notarization to be valid. A financial power of attorney requires 2 witnesses or notarization. A financial power of attorney is not durable by default; it must include durability language to survive incapacity.

In Washington, the executor files an inventory of the estate's assets within 90 days of appointment. A revocable trust skips the court-supervised inventory, so a trustee distributes without filing one.

In Washington, divorce automatically revokes a beneficiary designation that names a former spouse on the covered accounts, so the asset does not pass to the ex-spouse unless the designation is renewed after the divorce.

Estate Planning in Washington

Estate planning in Washington is shaped by community-property rules and remote online notarization. The choice between a will and a revocable trust depends on which of those features changes the cost or process for your situation, not on any single rule.

A will goes through probate, with attorney fees of typically 2.2% to 3.5% of the estate. A simple estate typically closes in 4 months to 6 months, and the 4 months creditor-claim window sets the floor. Estates under $100,000 can use the Small Estate Affidavit and avoid full probate administration. Real property cannot be transferred through this procedure in Washington; an estate that includes real estate uses a separate process. The Small Estate Affidavit is presented directly to the bank, employer, or other holder of the property — it is not filed with a court.

For a revocable trust, Washington does not require witnesses for trust execution. Notarization isn't required for validity, though banks and title companies typically expect a notarized trust before they'll work with it. Washington has not adopted the Uniform Trust Code; trust administration follows the state's own rules, which can affect trustee duties and beneficiary remedies.

Washington offers transfer-on-death deeds, which move real estate to a named beneficiary at death without probate and remote online notarization for estate documents, so signing can happen over secure video. Combined with beneficiary designations on retirement accounts and payable-on-death registrations, these can move significant value outside probate without setting up a trust.

SimplyTrust Editorial·Updated October 21, 2026

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Data sourced from Washington statutes and official state code. Fee percentages are modeled estimates; each figure's note says how. How we research.

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