What is a durable power of attorney?

Updated 2026-10-16 · Expert review in progress

The short answer

A durable power of attorney is one that keeps working if you become incapacitated. That matters because incapacity is usually when you need it most. In Washington, a power of attorney ends at incapacity unless it contains wording showing you meant it to continue, so the durability language has to be in the document itself.

A power of attorney is meant for the hard days: the stroke, the fall, the slow change in memory. So it surprises people to learn that some powers of attorney stop working on exactly those days.

The word that prevents that is "durable." This page explains what it means, how Washington's rule works, and how to tell whether your own document has it. It's part of our guide to the four roles in an estate plan.

What does "durable" mean?

A power of attorney names someone, your agent, to act for you. "Durable" describes what happens if you lose the ability to manage your own affairs.

Washington's law defines it simply. Under RCW 11.125.020, durable means "not terminated by the principal's incapacity." The principal is you, the person signing.

The same statute defines incapacity. It means being unable to manage your property, business, personal or health care affairs because of an impairment in receiving and evaluating information, or making or communicating decisions. It also covers someone who is missing, or outside the United States and unable to return.

Washington's rule: durable only if it says so

This is the detail most worth getting right. In Washington, a power of attorney is not durable by default.

Under RCW 11.125.040, a power of attorney ends when you become incapacitated unless the document contains durability wording. The statute gives two examples:

"This power of attorney shall not be affected by disability of the principal."
"This power of attorney shall become effective upon the disability of the principal."

Similar words also count, as long as they show you meant the authority to continue despite incapacity. The rule applies to Washington powers of attorney created both before and after January 1, 2017.

In Washington, a power of attorney without durability wording stops at incapacity.

The statute's list of ways a power of attorney ends says the same thing. Under RCW 11.125.100, it ends when you become incapacitated, "if the power of attorney is not durable."

Why some sources say the opposite

If you've read elsewhere that powers of attorney are durable automatically, that may be true where the writer lives. It isn't true everywhere.

Washington adopted its version of the Uniform Power of Attorney Act in 2016, under RCW 11.125.010. But on durability, Washington's law keeps the requirement for express wording.

Other states that adopted the act made the opposite choice. Idaho is a nearby example: there, a power of attorney is durable unless it expressly says incapacity ends it, under Idaho Code 15-12-104.

So the honest answer is that it depends on the state. Don't assume. Check the words in your document.

Why durability matters so much

Here is a typical case, a composite. Margaret is 71 and lives in Tacoma with her terrier, Biscuit. Years ago she signed a power of attorney naming her nephew, so he could handle the sale of a rental while she traveled.

Last spring she had a stroke. Her nephew went to the bank to pay her bills and keep the house running. If that old document had no durability wording, it ended when she lost capacity, at the very moment it was needed.

Without a working power of attorney, someone may have to ask a court to appoint a guardian or conservator. That's a court process, and it takes time. The page comparing guardianship and a power of attorney explains the difference.

Durable vs springing: two different questions

People often mix these up. They answer different questions.

Term	The question it answers	Washington rule
Durable	Does it keep working after I become incapacitated?	Only with durability wording (RCW 11.125.040)
Immediate	Can my agent act starting the day I sign?	Yes, unless the document says otherwise (RCW 11.125.090)
Springing	Does it wait until a future event, usually incapacity?	Only if the document says so; someone must confirm the trigger in writing

A document can be immediate and durable: it works now and keeps working. A springing document that starts "upon the disability of the principal" is durable by its nature, since that's one of the statute's example phrases.

The page on springing vs immediate powers of attorney covers the trade-offs. The page on when a power of attorney takes effect covers what banks tend to ask for.

When does a durable power of attorney end?

Durable doesn't mean permanent. In Washington, a power of attorney still ends when any of these happens, under RCW 11.125.100:

you die
you revoke it
the document says it ends
its purpose is accomplished
your agent dies, resigns or becomes incapacitated, and no backup agent is named

That last one is a good reason to name a backup. Washington lets you name successor agents in the document, under RCW 11.125.110. See naming a backup in every role.

A durable power of attorney can also sit alongside a court process. In Washington, you can nominate a guardian or conservator in your power of attorney, and the court must follow your most recent nomination except for good cause or disqualification, under RCW 11.125.080.

Do I need a durable power of attorney?

For most people planning for later life, yes. The whole point is to have someone ready if you can't act. A document that stops at incapacity doesn't do that job.

Run your current document through this checklist:

Find the wording. Look for a sentence saying it isn't affected by disability or incapacity, or similar words.
Check the date and state. A power of attorney signed elsewhere is valid in Washington if it was signed correctly under the law that governs it. Its meaning follows the state the document names, or the state where you signed it, under RCW 11.125.070.
Check what it covers. Money only, or health care too? In Washington, health care authority must be expressly granted.
Check the names. Is your agent still the right person, and is there a backup?
If in doubt, sign a new one. In Washington, a new power of attorney doesn't revoke an older one unless it says so (RCW 11.125.100), so ask whoever drafts it to address the old document.

The guide to getting a power of attorney walks through signing one. If the right person to name isn't obvious, the series on who decides when you can't looks at your options. Kinly includes a durable financial power of attorney and a medical power of attorney, both written for your state.

Common questions

Is every power of attorney durable?

No. It depends on the state. In Washington, a power of attorney ends at incapacity unless it contains wording showing you intended it to continue. In some other states, such as Idaho, it's durable unless it says otherwise.

What words make a power of attorney durable in Washington?

The statute gives examples such as "This power of attorney shall not be affected by disability of the principal." Similar words also count, as long as they show you meant the authority to continue despite incapacity.

Does a durable power of attorney work after death?

No. A durable power of attorney ends when you die. After that, your executor settles your estate under your will.

Can I revoke a durable power of attorney?

Yes. While you have capacity, you can revoke it. Tell your agent, and tell any bank or other business that has a copy.

Is a medical power of attorney durable too?

It should be. In Washington, the durability rule applies to any power of attorney under the state's power of attorney act, including one that grants health care authority. Make sure yours contains the wording.

Sources

This page is general information, not legal or financial advice. Laws vary by state.

Keep reading

The four rolesSpringing vs immediate power of attorneyA springing power of attorney waits until a future event, usually incapacity. How it compares with an immediate one, who confirms the trigger, and the delays.The four rolesWhen does a power of attorney take effect?When does power of attorney take effect? In Washington, the day you sign unless it says later. When your agent can act, and what banks and doctors ask to see.The four rolesThe four roles in an estate plan, and who should fill themWho should I name as power of attorney, executor and trustee? A plain guide to the four roles in every estate plan and how to choose who fills each.The next-of-kin gapWho decides for you when you can't? The next-of-kin gapWho is my next of kin, and who decides for me if I can't? How the law picks medical decision makers, heirs and executors, and how to close the gap.