When does a power of attorney take effect?

Updated 2026-10-16 · Expert review in progress

The short answer

In Washington, a power of attorney takes effect the day you sign it unless the document says it starts later, such as at incapacity (RCW 11.125.090). Other states set their own rules. A medical agent still decides only when you can't, and a backup agent waits until the first choice can't serve.

You've signed the papers. Now the practical question: when can the person you named actually do something? Pay the water bill, talk to the bank, sit with the doctor?

In Washington, the short answer is usually "now." The longer answer depends on how the document is written, which role it covers, and whether your agent is first in line or the backup. This page walks through each, using Washington as the worked example. It's part of our guide to the four roles in an estate plan.

The default: the day you sign

In Washington, a power of attorney is effective when it's signed, under RCW 11.125.090. The exception is a document that says it starts at a future date or when a future event happens.

To be signed properly, it must be dated and either notarized or witnessed by two qualified people, under RCW 11.125.050. Once that's done, an immediate document is ready to use.

Rules vary by state, so check the law that governs your document. A document signed in another state is valid in Washington if it was signed correctly under its governing law, under RCW 11.125.060.

In effect isn't the same as taking over

Effective means your agent may act. It doesn't mean they take charge. You keep your own authority, and you can still use your own accounts.

Your agent becomes your agent in practice by acting. In Washington, a person accepts the appointment by exercising authority or doing the agent's duties, or by other conduct showing acceptance, under RCW 11.125.130. From then on, they owe you the duties of a fiduciary: legally required to act in your interest and follow what you wrote.

When does it start in each situation?

Your document	When your agent can act	Washington rule
Immediate financial power of attorney	The day you sign	RCW 11.125.090
Springing power of attorney	After the trigger is confirmed in writing	RCW 11.125.090
Medical power of attorney	Once in effect, but only for decisions you can't make yourself	RCW 7.70.065
Backup (successor) agent	Only after every agent ahead of them resigns, dies, becomes incapacitated or declines	RCW 11.125.110
Document without durability wording	Stops working at incapacity	RCW 11.125.040

Springing documents

A springing document waits for a future event, usually incapacity. You can name the person who confirms it. If you didn't, Washington requires a written determination (RCW 11.125.090). It must come from an unrelated physician or licensed psychologist who has examined you, or from a judge or appropriate official.

That confirmation takes time to arrange, which is the main trade-off. Our page on springing vs immediate powers of attorney covers the choice.

Medical powers of attorney

A medical document can be in effect without your agent deciding anything. In Washington, you're presumed to have capacity. A provider must document why you can't make a particular decision before anyone else consents for you (RCW 7.70.065).

So your agent steps in decision by decision, only when needed. If you recover, the decisions come back to you. Our page on what a medical power of attorney is explains the role. The page on health care power of attorney vs living will explains how your written wishes guide it.

Backup agents

A backup can't act just because they're named. Unless the document says otherwise, a Washington successor agent waits for every agent ahead of them (RCW 11.125.110). Each must have resigned, died, become incapacitated, stopped being qualified, or declined.

Durability

Timing has an end point too.

In Washington, a power of attorney ends at incapacity unless it contains durability wording (RCW 11.125.040). An immediate document without that wording works today and stops on the day you'd need it most. See what makes a power of attorney durable.

What banks and other businesses ask to see

Expect the bank to want the document itself, or a copy. In Washington, a photocopy or electronic copy generally has the same effect as the original (RCW 11.125.060).

A notarized document carries extra weight.

The business must accept it, or ask for a certification or translation, within seven business days. After receiving a certification, it has five more business days to accept, under RCW 11.125.200. It can't insist on its own form for authority your document already grants.

The certification is a statement your agent signs under penalty of perjury, under RCW 11.125.190. It confirms, among other things:

they're the person named in the document
to the best of their knowledge, you're alive
all events needed to make the document effective have occurred
if they're a successor agent, the conditions for them to act have occurred
they don't know of any revocation or limit on their authority

There are exceptions to the acceptance rule. A business can refuse if it believes in good faith that the document isn't valid. It can also refuse if it has reported suspected abuse to the state (RCW 11.125.200).

What doctors and hospitals ask to see

Give your doctor a copy ahead of time, so it's in your chart. The hospital will usually ask for one too.

In Washington, an agent with general health care authority can act as your personal representative under HIPAA. That lets them see your health information, under RCW 11.125.400. Remember that health care authority must be expressly granted in the document.

When does it stop?

In Washington, a power of attorney ends when any of these happens, under RCW 11.125.100:

you die
you become incapacitated, if it isn't durable
you revoke it
the document says it ends, or its purpose is accomplished
your agent can't continue and no other agent is named

After death, your executor takes over the estate. The law also protects people who act in good faith without knowing the document has ended (RCW 11.125.100).

A quick checklist so it works on day one

Durability wording is in the document.
Start date is decided on purpose: immediate, or springing with a named person to confirm the trigger.
Notarized, so banks have to respond on a deadline.
Copies are with your agent, your backup and your doctor.
A backup agent is named. See naming a backup in every role.
Your agent knows where the original is and what you'd want.

A typical case

Here is a typical case, a composite. Helen is 74 and lives near Spokane with her old beagle, Pepper. Her immediate, durable power of attorney names her niece Amy, with Helen's neighbor as backup.

When Helen broke her hip, Amy took the notarized copy to the credit union that afternoon. The credit union asked for a certification, Amy signed it, and the mortgage was paid on time. Helen took her bills back once she was home.

If the obvious person to name isn't close by, the series on who decides when you can't looks at the options. Kinly's membership includes a financial and a medical power of attorney written for your state; you can read how it works.

Common questions

Does a power of attorney take effect immediately?

In Washington, yes, unless the document says it starts later. That's the default under RCW 11.125.090. Other states set their own rules, so check the law that governs your document.

Does a power of attorney need to be recorded to take effect?

Washington's signing rule doesn't require recording. It requires the document to be signed, dated, and notarized or witnessed by two qualified people. Ask whoever drafts it whether a real estate sale needs anything more.

Can my agent act while I'm still able to make decisions?

With an immediate financial document, yes, if needed. You keep your own authority too. A medical agent decides only the health decisions you can't make yourself.

How long does a bank have to accept a power of attorney in Washington?

For a notarized power of attorney, seven business days to accept it or ask for a certification or translation. If it asks for a certification, it has five business days after receiving it.

Does my power of attorney still work if I move to another state?

A document signed correctly under the law that governs it is valid in Washington. Other states have their own rules about out-of-state documents. When you move, ask a lawyer in your new state to look at it.

Sources

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

Keep reading

The four rolesWhat is a medical power of attorney?What is a medical power of attorney? It names the person who makes health care decisions when you can't: what they decide, when they start, who can serve.The four rolesHealth care power of attorney vs living will: you probably need bothA health care power of attorney names someone to decide for you. A living will records your wishes. How they differ, and why most people need both.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.