Most Washington estate plans are built from a small set of documents: a will, sometimes a trust, a durable power of attorney for finances, a power of attorney for health care, and a health care directive. Each one does a different job. A will speaks after death. Powers of attorney and a directive speak during life. A trust can do parts of both, but only for property it actually holds.
This article explains those core documents under Washington statutes that are in force as of August 2026. It is general information, not a recommendation that every household use every tool, and not legal advice for a particular estate.
What these documents do, and what they do not do
A will directs probate property and can name who administers the estate. A trust holds titled assets for a trustee to manage. A power of attorney authorizes an agent while you are alive. A health care directive records your own instructions about life-sustaining treatment. None of these documents replaces the others by itself.
Washington is a community-property state. Property acquired after marriage or after registration of a state registered domestic partnership is generally community property, with important limits on what one spouse or partner can give away or transfer alone. That background, in RCW 26.16.030, is why a married person’s plan cannot be copied from a form written for a common-law state.
View Ridge Law’s estate planning page is the firm overview for this work. The documents below are the usual building blocks, not a ranked package and not a promise about cost, timing, or results.
A last will and testament
In Washington, an adult of sound mind may leave real and personal property by will. The will must be in writing, signed, and attested by two or more competent witnesses. It tells a probate court who receives probate property and who administers the estate. It does not move assets that already have another legal owner or beneficiary.
A will may be signed by the testator, or by another person at the testator’s direction in the testator’s presence or electronic presence.
The capacity rule is RCW 11.12.010: any person of sound mind who has attained the age of eighteen years may, by last will, devise all of his or her estate, both real and personal.
The signing rule is RCW 11.12.020. The witnesses subscribe their names to the will, or sign an affidavit that complies with RCW 11.20.020(2), while in the presence or electronic presence of the testator and at the testator’s direction or request. Washington also recognizes a will executed in the mode prescribed by the law of the place where it was executed, or of the testator’s domicile, either at execution or at death.
Two limits from statutes already cited matter when people draft a will:
- Under RCW 26.16.030, neither spouse or domestic partner may devise or bequeath by will more than one-half of the community property.
- A will is the document that operates at death. It does not authorize someone to manage your accounts or talk to your doctors while you are alive.
More detail on how View Ridge Law approaches this document is on the firm’s wills page.
Trusts
A trust is a written arrangement in which a trustee holds and manages property for beneficiaries. Washington’s trusts chapter is chapter 11.98 RCW. Families use trusts to manage property during incapacity, hold assets for a child over time, or keep some transfers out of a public probate file.
A trust only controls property actually transferred into it or made payable to it.
This article does not claim that every Washington household needs a trust, or that a trust always avoids court. Those questions depend on what you own, how it is titled, and who should receive it. A will can still be necessary alongside a trust, including as a backup for assets that were never retitled.
View Ridge Law discusses design, funding, and administration on its trusts page. Funding (actually changing titles and beneficiary designations so the trust owns or receives the intended assets) is a separate step from signing the trust instrument.
Powers of attorney for finances and health care
Washington’s Uniform Power of Attorney Act is chapter 11.125 RCW. It lets you name an agent to act for you while you are alive. The power is durable (it survives incapacity) only if the writing says so. It must be signed and dated, and notarized or attested by two qualified witnesses.
Authority can start immediately or only after a future event, including incapacity.
The durability rule is RCW 11.125.040. Unless the document contains words such as “This power of attorney shall not be affected by disability of the principal,” or “This power of attorney shall become effective upon the disability of the principal,” or similar words showing that intent, the authority terminates upon the principal’s incapacity.
The execution rule is RCW 11.125.050. The principal must sign and date the document. The signature must be either acknowledged before a notary (or other person authorized to take acknowledgments) or attested by two or more competent witnesses who:
- are not home-care providers for the principal;
- are not care providers at an adult family home or long-term care facility where the principal resides; and
- are unrelated to the principal or the agent by blood, marriage, or state registered domestic partnership.
Those witnesses must subscribe their names while in the presence of the principal and at the principal’s direction or request.
RCW 11.125.090 says a power of attorney is effective when executed unless the principal says it begins on a future date or event. If it begins on incapacity and no one is authorized to decide that the principal is incapacitated, the statute describes who may make that written determination.
Health-care authority is not implied just because a financial power of attorney exists. RCW 11.125.400 describes what an agent may do when the document grants general authority over health-care matters, including providing informed consent and acting as the principal’s personal representative for certain health-information purposes. The same section restricts who may serve as a health-care agent: except for a spouse, state registered domestic partner, parent, adult child, or sibling of the principal, the principal’s physicians, their employees, and the owners, administrators, or employees of the facility where the principal resides or receives care may not act as agent.
A power of attorney ends at death. That is why families usually pair these documents with a will or trust rather than treating a power of attorney as a complete plan. View Ridge Law’s powers of attorney page covers how the firm drafts these documents as part of a broader plan.
A health care directive
A health care directive states whether life-sustaining treatment should be withheld or withdrawn if you are in a terminal condition or a permanent unconscious condition. An adult signs it before a notary or two disqualified-heir witnesses. It records your instructions. It does not appoint the person who speaks with doctors about other decisions.
Washington’s form and formalities are in RCW 70.122.030, part of the Natural Death Act. The statute allows any adult to execute a directive. Witnesses may not be the attending physician, an employee of the attending physician or of a health facility where the declarer is a patient, or a person with a claim against the estate. The statutory form also asks whether you do or do not want artificially provided nutrition and hydration in those conditions, and it asks that any later-appointed decision-maker be guided by the directive.
The statute requires a written diagnosis, by the attending physician for a terminal condition or by two physicians for a permanent unconscious condition, before life-sustaining treatment is withheld or withdrawn under the directive.
A directive and a health-care power of attorney answer different questions. The directive says what you want in the conditions the statute names. The power of attorney names who may give informed consent if you cannot.
How the pieces fit for a Washington household
A practical Washington plan usually covers two timelines: incapacity during life, and transfer at death. Powers of attorney and a health care directive address the first. A will, and sometimes a trust, address the second. Titles and beneficiary designations can move property outside the will, so the documents have to be read together.
A few pairings that follow from the statutes above, without adding tools this article did not source:
- A durable financial power of attorney can keep bills and property management out of a court conservatorship if it is signed correctly and says it survives incapacity.
- A health-care power of attorney names a decision-maker; a directive under RCW 70.122.030 states certain end-of-life instructions.
- A will disposes of probate property and names an estate administrator; it does not keep an agent in authority after death.
- A trust under chapter 11.98 RCW administers only the property it holds.
Blended families, unmarried partners, and households with children from more than one relationship often need the documents to name who should receive property. Default inheritance rules will not do that work for them. View Ridge Law already covers those defaults in What happens to your estate when you die without a will in Washington State.
View Ridge Law is a Seattle firm serving King, Snohomish, and Pierce Counties. It practices estate planning alongside family law. If you want a lawyer to review which documents fit your situation, request a case evaluation. Sending information through that form does not create an attorney-client relationship.
FAQ
Do I need both a will and a power of attorney in Washington?
They do different jobs. A will operates at death. A power of attorney operates during life and ends at death. Many adults use both. Whether you also need a trust depends on what you own and how you want it managed. That is a facts-and-titles question, not a slogan.
Does a Washington power of attorney have to be notarized?
It must be signed and dated, and the signature must be either acknowledged before a notary (or other official who can take acknowledgments) or attested by two witnesses who meet RCW 11.125.050. A notarized signature is presumed genuine under that statute. Kitchen-table witnessing can fail if a witness is a disqualified caregiver or a relative of the principal or agent.
If I am married, can I leave everything by will?
Not community property. RCW 26.16.030 says neither spouse or domestic partner may devise or bequeath by will more than one-half of the community property. Separate property is a different category. Titles and the date an asset was acquired matter.
Does a will avoid probate in Washington?
A will does not avoid probate. See View Ridge Law’s estate planning and wills pages.
Where can I read the official statutes?
Wills: RCW 11.12.010 and 11.12.020. Powers of attorney: chapter 11.125 RCW. Health care directives: RCW 70.122.030. Community property: RCW 26.16.030. Trusts: chapter 11.98 RCW.
This is general information about Washington law as of August 2026. It is not legal advice and does not create an attorney-client relationship. Re-check the cited RCW pages if you rely on a specific statute.
