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Washington Power of Attorney Laws: Durable, Medical, and Financial POA (2026)

Independently fact-checked against primary sources (last audited August 18, 2026). · Reviewed by the RecordingLaw editorial team. · Law checked current as of August 18, 2026. How we verify our legal content

Washington Power of Attorney Laws: Durable, Medical, and Financial POA (2026)

Frequently Asked Questions

Is a Washington power of attorney durable by default?

No. Under RCW 11.125.040, a Washington POA terminates when the principal becomes incapacitated unless the document contains explicit language stating the authority is not affected by the principal's disability, or that it becomes effective upon the principal's disability. Without that language, the POA ends at incapacity, which is exactly when it is most often needed.

Does a Washington power of attorney need to be notarized?

Not necessarily. Under RCW 11.125.050, a Washington POA may be executed with either a notary's acknowledgment OR the signatures of two qualified witnesses. However, notarization creates a presumption that the signature is genuine under RCW 11.125.190, which makes notarized documents easier for financial institutions and other third parties to accept.

Who cannot serve as a witness on a Washington power of attorney?

Under RCW 11.125.050, three categories are disqualified: home care providers for the principal; care providers at an adult family home or long-term care facility where the principal resides; and anyone related to the principal or the named agent by blood, marriage, or state registered domestic partnership. Because the third category expressly covers persons related to the agent, the named agent and the agent's close relatives cannot witness the document.

What are the hot powers in a Washington POA?

RCW 11.125.240 lists twelve powers that require express authorization in the document: creating or revoking trusts, making gifts, changing survivorship rights or beneficiary designations, delegating agent authority, waiving survivor annuity rights, exercising delegatable fiduciary powers, exercising powers of appointment, creating or revoking community property agreements, directing trust distributions, making nonprobate transfer arrangements, and making health care decisions.

Can a Washington power of attorney authorize medical decisions?

Yes, but only with an express grant. Under RCW 11.125.400, when a POA includes general health care authority, the agent may access health information and provide informed consent for medical decisions. Making health care decisions is also a hot power under RCW 11.125.240, so the document must specifically authorize it. A separate Natural Death Act directive under RCW 70.122 addresses life-sustaining treatment preferences.

What is the Natural Death Act directive in Washington?

Under RCW 70.122, a Washington adult may sign a written directive instructing a physician to withhold or withdraw life-sustaining treatment if the person is in a terminal condition or permanent unconscious condition. The directive must be signed and either notarized or witnessed by two qualified persons who are not related to the declarer, not potential heirs, and not health facility employees or the attending physician.

How do you revoke a power of attorney in Washington?

A principal with capacity may revoke a Washington POA at any time by executing a written revocation and notifying the agent. Under RCW 11.125.100, executing a new POA does not automatically cancel earlier ones unless the new document expressly states that prior powers of attorney are revoked. To prevent two documents from operating simultaneously, the new instrument should include an express revocation clause.

Updates

Corrected the list of events that end a spouse or domestic-partner agent's authority under RCW 11.125.100: filing for legal separation ends it too, not only filing for dissolution or annulment.

Independently fact-checked against the cited primary sources; governing law re-checked for recent changes

Governing law re-checked for recent changes

Governing law re-checked for recent changes

Reviewed and approved by an editor

Sources and References

  1. RCW 11.125: Uniform Power of Attorney Act (Washington)(app.leg.wa.gov)
  2. RCW 11.125.010: Short title (Uniform Power of Attorney Act)(app.leg.wa.gov)
  3. RCW 11.125.020: Definitions(app.leg.wa.gov)
  4. RCW 11.125.040: Power of attorney: Durability and termination(app.leg.wa.gov)
  5. RCW 11.125.050: Execution requirements (signing, notary, witnesses)(app.leg.wa.gov)
  6. RCW 11.125.090: When a power of attorney is effective(app.leg.wa.gov)
  7. RCW 11.125.100: Termination of power of attorney and agent authority(app.leg.wa.gov)
  8. RCW 11.125.140: Agent duties, liability, and disclosures(app.leg.wa.gov)
  9. RCW 11.125.190: Acknowledged power of attorney: presumption of genuineness(app.leg.wa.gov)
  10. RCW 11.125.240: Hot powers requiring express grant of authority(app.leg.wa.gov)
  11. RCW 11.125.400: Agent authority for health care(app.leg.wa.gov)
  12. RCW 70.122: Natural Death Act (Washington)(app.leg.wa.gov)
  13. RCW 70.122.030: Directive to withhold life-sustaining treatment(app.leg.wa.gov)
  14. RCW 70.122.130: Health care declarations registry(app.leg.wa.gov)
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