A power of attorney is a legal document that lets you name someone to handle money, property, or medical decisions on your behalf
When you sign a power of attorney, you are giving another person — called an agent or attorney-in-fact — the legal right to act for you. That person can sign documents, move money, sell property, or make medical choices depending on what the document says you want them to do. You remain in control: you decide what powers to give, to whom, and when those powers end.
The document itself is a piece of paper (or digital file) that you sign in front of a notary public. It has to be witnessed or notarized depending on your state and the type of power of attorney. Once it is signed and notarized, banks, hospitals, and government offices will recognize it as proof that your agent has the right to act.
Key Takeaways
- A power of attorney names someone to handle your financial, property, or medical decisions if you cannot or do not want to do it yourself.
- You choose exactly what powers to give — you can limit it to one bank account, one medical decision, or everything, depending on the document type.
- The document must be signed and notarized to be valid, and requirements vary by state.
- You can revoke (cancel) a power of attorney at any time as long as you are mentally able to do so.
- An agent has a legal duty to act in your best interest and cannot use the power for their own gain.
The three main types of power of attorney and what each covers
Financial power of attorney lets your agent handle money and property. They can pay bills, deposit checks, sell a house, manage investments, or file taxes — whatever you authorize. This is the most common type and is often used when someone is traveling, ill, or straightforward wants help managing their finances.
Healthcare power of attorney (also called a healthcare proxy or medical power of attorney) lets your agent make medical decisions if you cannot. They can talk to doctors, consent to surgery, choose a nursing home, or decide about life support. This does not take effect unless you are unable to make decisions yourself — it is not active while you are well and able to speak for yourself.
General power of attorney covers both financial and medical decisions. It is broader than the other two but still limited to what you write into the document. Some states also recognize a limited power of attorney, which covers only one specific task — for example, selling one piece of property or signing one contract.
Durable versus non-durable: what happens if you become unable to decide
A durable power of attorney stays in effect even if you become mentally unable to make decisions yourself. This is the type most people use because it protects them if they develop dementia, have a stroke, or fall into a coma. Without the durable language, the power of attorney ends the moment you lose mental capacity — exactly when you need it most.
A non-durable power of attorney ends if you become unable to decide. It is rarely used except in very specific situations where you want the power to end automatically if your health changes. Most people choose durable instead.
You can also set a power of attorney to begin only when you become unable to decide — this is called a springing power of attorney. It does not take effect while you are healthy and able to act for yourself, but it "springs" into effect if a doctor certifies that you have lost capacity. Some people prefer this because their agent has no power until they truly need it.
What your agent can and cannot do
Your agent can only do what the document says they can do. If you give them power over your bank account, they cannot sell your house. If you give them healthcare power, they cannot touch your money. You control the scope by what you write into the document.
Your agent has a legal duty to act in your best interest, not their own. They cannot steal from you, give themselves gifts, or use your money for their personal benefit — doing so is a crime. If you suspect your agent is misusing the power, you can revoke the document and report them to the police or your state's attorney general.
Your agent also cannot do things that are illegal or that you have specifically forbidden. For example, if you write "my agent can pay my bills but cannot sell my house," they cannot sell your house no matter what happens. Some states also require your agent to keep records of what they do with your money and to report to you or to a court if you ask.
How to create a power of attorney
You can write a power of attorney yourself using a template from your state bar association, a legal website, or a book on estate planning. The document does not have to be fancy or written by a lawyer — it just has to be clear, signed by you, and notarized. Many states accept straightforward, one-page forms.
You can also hire a lawyer to draft one. This costs more but ensures the document is tailored to your situation and meets your state's exact rules. Some states have specific language or formatting requirements, and a lawyer will know them.
Once the document is written, you sign it in front of a notary public. Some states require witnesses as well. You keep the original and give copies to your agent, your bank, your doctor, and anyone else who might need to see it. You do not file it with the court unless your state requires it — most do not.
When a power of attorney ends
A power of attorney ends when you die, when you revoke it, or when you set an end date in the document. You can revoke it at any time by signing a revocation form and notarizing it, then giving copies to your agent and anyone who has a copy of the original.
If you become unable to make decisions and the power of attorney is not durable, it ends automatically. If it is durable, it continues until you die or revoke it. Some powers of attorney end on a specific date — for example, "this power of attorney is valid only until January 1, 2026."
When you die, your power of attorney has no effect. Your will and your estate plan take over, and your agent's authority ends. This is why many people have both a power of attorney (for while they are alive) and a will or trust (for after they die).
Why people use a power of attorney
People create a power of attorney for many reasons. Some are aging and want to plan ahead in case they develop dementia or have a stroke. Some are traveling and need someone to handle bills or sign documents while they are away. Some have a chronic illness and want to make sure their finances are managed if they have a bad flare-up.
Parents sometimes create a power of attorney naming a trusted adult to make medical decisions for their child if both parents die or become unable to decide. Business owners create them to let a partner or manager sign contracts or handle day-to-day decisions. The document is flexible enough to fit many situations.
Frequently Asked Questions
Can my agent use my power of attorney after I die?
No. A power of attorney ends when you die. Your agent's authority stops when ready. Your will, trust, or state law determines who handles your property and decisions after death. Your agent can help settle your estate if they are named as executor in your will, but that is a different role with different powers.
What if I change my mind about who my agent is?
You can revoke the power of attorney and create a new one naming someone else. Sign a revocation form, have it notarized, and give copies to your old agent, your bank, your doctor, and anyone else who has the original. Then create a new power of attorney with your new agent and distribute that instead.
Does my agent have to do what I ask?
Your agent can refuse to act as your agent, even after you sign the document. If they do not want the responsibility, they can decline. Once they accept and start acting, they have a legal duty to follow your instructions and act in your best interest. If they refuse to follow your clear instructions, you can revoke the power and report them to your state attorney general.
Do I need a lawyer to create a power of attorney?
No. You can use a template from your state bar, a legal website, or a self-help book, sign it, and have it notarized. A lawyer is helpful if your situation is complicated — for example, if you own a business, have a blended family, or want very specific limits on your agent's power — but it is not required for a basic power of attorney.
What happens if someone challenges my power of attorney?
If someone claims the document is fake, forged, or that you were not mentally able when you signed it, a court can rule the document invalid. This is rare but can happen if a family member thinks your agent is stealing from you or if there is a dispute over your care. Having it properly notarized and keeping a copy in a safe place helps prove it is real.