A power of attorney lasts as long as you set it to last, or until specific events end it

The length of a power of attorney depends on what you write into the document itself. You can create one that lasts for a single transaction, for a set number of years, or for the rest of your life. You can also end it whenever you choose. The key is that you control the duration — it is not set by law, though state law does determine what happens if you do not specify an end date.

The most common confusion is between a regular power of attorney, which ends the moment you become incapacitated, and a durable power of attorney, which survives your incapacity and continues until you revoke it or die. If you want someone to act for you after you can no longer make decisions, you need the durable version explicitly. Otherwise, the document becomes worthless the when ready you lose mental capacity.

Key Takeaways

  • A regular power of attorney ends when ready if you become mentally incapacitated, while a durable power of attorney continues through incapacity unless you revoke it.
  • You can set an expiration date in the document itself — for example, "this power of attorney expires on December 31, 2027" — or leave it open-ended.
  • A power of attorney always ends when you die, regardless of its stated duration.
  • You can revoke a power of attorney at any time by signing a written revocation and giving notice to the person you appointed and any institutions that know about it.
  • If you do not specify a duration and do not revoke it, a durable power of attorney remains in effect until your death.

The difference between durable and non-durable powers of attorney

A non-durable power of attorney ends the moment you lose the mental capacity to make your own decisions. This happens automatically — you do not have to do anything, and the agent does not have to do anything. The document straightforward stops working. This is rarely what people want, because the whole reason to create a power of attorney is usually to have someone act for you when you cannot.

A durable power of attorney survives your incapacity. The document must say so explicitly — usually with language like "this power of attorney shall be durable" or "this power of attorney shall remain in effect even if I become incapacitated." Without those words, most states treat it as non-durable. The durable version continues until you revoke it, you die, or the expiration date you set arrives, whichever comes first.

If you are creating a power of attorney to cover situations where you might not be able to act — a long hospital stay, dementia, a coma — you need the durable version. If you are creating one just to let someone handle a specific task while you are away or busy, a non-durable version is fine and may actually be safer because it automatically ends if something goes wrong with your health.

Setting an expiration date in the document

You can write any expiration date you want into a power of attorney. Common choices are one year, five years, or ten years. Some people set it to expire on a specific date — "December 31, 2029" — while others tie it to an event, though this is less common and can create confusion. The expiration date you choose does not have to match any government important date or legal requirement; it is entirely your decision.

If you set an expiration date and do nothing else, the power of attorney stops working on that date. The agent cannot act anymore, and any institution that knows about the document will refuse to honor it. If you want the power of attorney to continue, you will need to create a new one before the old one expires.

Many people create durable powers of attorney with no expiration date at all. This means the document remains valid for the rest of your life unless you revoke it. Some states have rules about how old a power of attorney can be before institutions start refusing it — for example, a bank might not accept one that is more than five or ten years old, even if it is still legally valid — but the document itself does not expire.

What happens when you become incapacitated

If you have a durable power of attorney and you lose mental capacity, the document continues to work. Your agent can still act on your behalf, and banks, doctors, and other institutions should honor it. This is the whole point of making it durable — to may support someone can handle your affairs if you cannot.

If you have a non-durable power of attorney and you become incapacitated, the document stops working when ready. Your agent cannot act anymore. If you have no other plan in place — such as a healthcare proxy or a living will — your family may have to go to court and ask for a guardianship or conservatorship, which is more expensive and more restrictive than a power of attorney.

The moment you regain capacity, a non-durable power of attorney does not automatically restart. You would need to create a new one. A durable power of attorney, by contrast, continues to work whether you are incapacitated or not, so there is no restart needed.

How to revoke a power of attorney

You can revoke a power of attorney at any time, for any reason, as long as you still have the mental capacity to do so. You do not need permission from your agent, and you do not need a court order. You straightforward sign a written revocation — a short document stating that you are canceling the power of attorney — and deliver it to the agent and to any institutions that know about the document.

A revocation takes effect as soon as the agent and the relevant institutions receive it. However, if your agent has already acted on the power of attorney before receiving the revocation, those actions may still be valid. For example, if your agent cashed a check on your behalf and then you revoke the power of attorney, the check is still cashed. To be safe, notify banks, investment firms, healthcare providers, and any other organization that has a copy of the power of attorney.

Keep a copy of the revocation for your records. Some institutions may ask to see it before they will stop honoring the old power of attorney. If you create a new power of attorney to replace the old one, you can include language in the new document stating that it revokes all previous powers of attorney, which makes the transition clearer.

What happens to a power of attorney when you die

A power of attorney ends when ready when you die, regardless of its stated duration or whether it is durable. Your agent has no authority to act after your death. Any money or property still in your name becomes part of your estate, and your executor or the probate court takes over from there.

This is why a power of attorney is different from a will or a trust. A will takes effect after you die; a power of attorney does not. If you want someone to manage your affairs after your death, you need a will, a trust, or both — not a power of attorney.

If your agent has already acted on the power of attorney before your death — for example, they paid a bill or transferred money — those actions remain valid. But they cannot act anymore once you are gone.

State variations in how long a power of attorney lasts

Most states allow you to set any duration you want, and most states treat a power of attorney as non-durable unless you explicitly make it durable. However, some states have specific rules about how long a power of attorney can last or what language you must use to make it durable.

A few states have a default duration — for example, some states say a power of attorney lasts for five years unless you specify otherwise. Others have no default and assume it lasts indefinitely unless you set an end date. Some states require specific language to make a power of attorney durable; others accept a broader range of wording.

Because the rules vary, it is worth checking your state's law or consulting a lawyer in your state before you create a power of attorney. A document that works in one state might not work the way you expect in another. If you are creating a power of attorney that will be used in multiple states — for example, if you own property in more than one state — you may need separate documents for each state.

Frequently Asked Questions

Can I create a power of attorney that lasts only for a few months?

Yes. You can set any expiration date you want. For example, you could write "this power of attorney expires on March 31, 2025" if you only need someone to act for you during a specific period. Just make sure the date is clear and that you notify your agent and any institutions that will use the document.

What if I create a power of attorney and then forget about it for ten years?

If you did not set an expiration date and did not revoke it, it is still valid. However, some banks and other institutions may refuse to honor a power of attorney that is very old, even if it is legally valid. If you want to use it, you may need to create a new one to show that it is current.

Does a power of attorney expire if I move to a different state?

Not automatically, but it may not work in the new state. A power of attorney created in one state is often honored in another, but some institutions may refuse it or ask for a version that follows the new state's rules. If you move, it is a good idea to have a lawyer in your new state review the document.

Can my agent extend a power of attorney after it expires?

No. Your agent cannot extend it on their own. If the power of attorney has expired and you want it to continue, you must create a new one. If you are incapacitated and cannot create a new one, your family may need to go to court for a guardianship.

What is the difference between a power of attorney and a healthcare proxy?

A power of attorney typically covers financial and legal decisions, while a healthcare proxy (also called a healthcare power of attorney) covers medical decisions only. You can have both. A healthcare proxy usually ends when you die or regain capacity to make your own medical decisions, just like a regular power of attorney.