Power of Attorney in Washington
A power of attorney may be the most important document you sign while you are alive. It answers a question every adult should plan for: if illness or injury leaves you unable to manage your own affairs, who can step in, and what can they do? Without one, your family may have to ask a court for authority to pay your bills or manage your property. This guide explains how financial powers of attorney work in Washington. To put one in place, a Seattle power of attorney lawyer at Latterell Law can help.
What Is a Financial Power of Attorney?
A financial power of attorney is a legal document in which you (the principal) authorize another person (your agent, sometimes called an attorney-in-fact) to act on your behalf in financial and property matters. Depending on how the document is written, your agent may be able to pay bills, manage bank accounts and investments, file taxes, handle real estate, run a business, or deal with government benefits.
Washington powers of attorney are governed by the Uniform Power of Attorney Act, Chapter 11.125 RCW. Under the statute, a power of attorney must be signed and either notarized or witnessed by two qualified adults. Certain powers, such as making gifts or changing beneficiary designations, must be specifically granted in the document before an agent can exercise them.
Durable vs. Non-Durable Powers
The single most important word in the document is “durable.”
- A durable power of attorney remains effective even if you later become incapacitated. This is the version used in estate planning, because incapacity is exactly the situation you are planning for.
- A non-durable power of attorney terminates automatically if you become incapacitated. These are typically used for limited, short-term purposes, such as authorizing someone to sign closing documents while you are out of the country.
Under Washington’s statute, a power of attorney must state that it is durable; otherwise, incapacity ends the agent’s authority at the moment your family needs it most.
Immediate vs. Springing Powers
You can also choose when your agent’s authority begins:
- An immediate power of attorney is effective as soon as you sign it. You remain in control of your own affairs, but your agent can act right away if needed. Many people choose this option for a trusted spouse or adult child because it avoids delay.
- A springing power of attorney takes effect only upon a future event, usually a determination that you are incapacitated. Springing powers feel safer to some people, but they can create friction in practice: banks and other institutions may hesitate to accept the document until incapacity is formally established, which can mean physician letters and delay during a crisis.
There is no universally right answer. The best choice depends on your circumstances and how much you trust your chosen agent.
Your Agent’s Responsibilities
An agent under a Washington power of attorney is a fiduciary. That means your agent must:
- Act in good faith and within the authority the document grants
- Act in your best interest and according to your known wishes
- Keep your property separate from their own
- Keep records of transactions made on your behalf
- Avoid conflicts of interest and self-dealing
Choosing the right agent matters as much as signing the right document. Pick someone trustworthy, organized, and willing to serve, and always name at least one alternate in case your first choice cannot act.
Why a Power of Attorney Beats the Alternative
If you become incapacitated without a durable power of attorney, your loved ones may need to petition the superior court for a guardianship or conservatorship to gain authority over your affairs. That process is public, can be expensive, involves ongoing court oversight, and takes the choice of decision-maker out of your hands. A properly drafted power of attorney usually avoids all of that. You can learn more about how courts handle these situations on our Seattle guardianship lawyer page.
A financial power of attorney also covers only property and money. Medical decisions require separate documents, covered in our guide to healthcare directives and living wills.
Put Your Power of Attorney in Place
Latterell Law prepares durable powers of attorney as part of nearly every estate plan we build, tailored to Washington’s statutory requirements and your family’s needs. Founder Angel M. Latterell has helped Washington individuals and families plan for incapacity for more than 20 years. Contact Latterell Law today to schedule a consultation with a Seattle estate planning attorney.

