What a power of attorney actually does

A power of attorney is a legal document that lets you give another person the right to act on your behalf — to sign documents, move money, sell property, or make medical decisions in your name. The person who signs the document is called the principal. The person who receives the power is called the agent or attorney-in-fact (the word "attorney" here does not mean a lawyer).

When you sign a power of attorney, you are not giving up your own rights. You keep the ability to act for yourself. Your agent can act at the same time you do, or instead of you, depending on what the document says. The agent's job is to act in your interest, not their own.

The document itself is just a piece of paper until you sign it in front of a notary public (and sometimes witnesses, depending on your state and what type of power of attorney it is). Once it is signed and notarized, banks, hospitals, government offices, and other institutions will accept it as proof that your agent has the right to act.

Key Takeaways

  • A power of attorney gives one person the legal right to act on behalf of another person, but the principal keeps their own rights and can revoke the document at any time.
  • The document must be signed in front of a notary public, and some types also require witnesses, depending on your state's law.
  • A durable power of attorney stays in effect if you become unable to make decisions yourself, while a non-durable one ends automatically.
  • Your agent has a legal duty to act honestly and in your best interest, and institutions can refuse to honor a power of attorney if they have reason to believe it is forged or that you were pressured into signing.

The difference between durable and non-durable powers of attorney

A non-durable power of attorney ends the moment you become unable to make decisions — if you have a stroke, develop dementia, or fall into a coma. This type is useful when you need someone to handle a specific task while you are still able to oversee them, such as selling a piece of property while you are traveling or managing a business deal while you are in the hospital for a short stay.

A durable power of attorney stays in effect even if you become mentally or physically unable to make decisions. This is the type most people use for long-term planning. It means your agent can continue to act on your behalf if you have a stroke, develop Alzheimer's disease, or are in an accident. Without a durable power of attorney, your family would have to go to court and ask a judge to appoint a conservator or guardian — a process that takes months and costs money.

Some durable powers of attorney are "springing," meaning they do not take effect until a specific event happens — usually a doctor's statement that you are no longer able to make decisions. Others take effect when ready when you sign them. You decide which type you want when you create the document.

What types of decisions an agent can make

The scope of an agent's power depends entirely on what you write into the document. You can give your agent power over some decisions but not others. Common categories include financial decisions (paying bills, managing bank accounts, selling property), healthcare decisions (choosing doctors, approving treatment, deciding about life support), and business decisions (running a company, signing contracts, hiring employees).

A general power of attorney gives your agent broad power over most or all of your financial and legal matters. A limited power of attorney restricts the agent to specific tasks — for example, the power to sell one house, or to manage your bank account for one year, or to sign tax documents. A healthcare power of attorney (also called a healthcare proxy or medical power of attorney) covers only medical decisions and is separate from financial powers.

You can also set conditions. For example, you might say your agent can spend up to $5,000 per month on your care, or can sell property only with your written consent, or can make healthcare decisions only if two doctors agree you cannot make them yourself. The more specific you are, the clearer your wishes are to banks, hospitals, and other institutions.

How institutions verify and accept a power of attorney

When your agent tries to use the power of attorney — to withdraw money from your bank, access your medical records, or sell your house — the institution involved will ask to see the original document or a certified copy. They will check that it is signed, notarized, and dated. They may also call you to confirm that you signed it willingly and that it is still in effect.

Banks, hospitals, and government offices have the right to refuse a power of attorney if they have reason to believe it is forged, if the signature does not match their records, if it is outdated, or if they suspect you were pressured or coerced into signing. Some institutions have their own forms they prefer you to use, especially for healthcare decisions. If you want to avoid delays, ask the institution in advance what form they accept.

An institution can also refuse if the power of attorney does not clearly give your agent the power they are trying to use. For example, if the document says your agent can manage your checking account but not your savings account, the bank will not let them access savings. This is why being specific in the document matters.

What happens if you change your mind

You can revoke (cancel) a power of attorney at any time, as long as you are mentally able to make decisions. You do this by signing a revocation document and having it notarized. You should give copies to your agent, your bank, your doctor, and anyone else who has a copy of the original power of attorney.

If you do not formally revoke the document, it stays in effect until the date you set in it (if you set one), or indefinitely if you did not set an end date. If you become unable to make decisions and you did not revoke it, your agent can still use it. This is why it is important to choose an agent you trust completely.

A power of attorney also ends automatically when you die. Your agent has no power after that point. If your estate needs to be managed after your death, that job goes to the executor named in your will, not to the agent under the power of attorney.

The agent's legal duties and what can go wrong

Your agent has a legal duty called fiduciary duty, which means they must act honestly, in good faith, and in your best interest — not their own. They cannot use your money or property for themselves, cannot hide transactions from you, and cannot make decisions that benefit them at your expense. If they do, you can sue them, and so can your family members or the state.

In practice, abuse happens. An agent might transfer money to themselves, rack up credit card debt in your name, or sell property and keep the proceeds. Because the agent has legal authority to act, these crimes can be hard to catch and hard to stop. This is why choosing your agent matters more than almost anything else in the document. Choose someone you know well, someone with no financial problems of their own, and someone who has no reason to want your money.

You can also protect yourself by naming a co-agent (two people who must act together) or by asking the institution to require your written approval for large transactions. Some people also ask a family member or friend to monitor the agent's activity and report back.

How to create a power of attorney

You can buy a blank power of attorney form online or at an office supply store, fill it out yourself, and have it notarized. The form must meet your state's requirements — each state has slightly different rules about what must be in the document, how it must be signed, and whether witnesses are needed. A form that works in one state may not work in another.

You can also hire a lawyer to draft the document. This costs more (typically $200 to $500) but ensures the document is tailored to your situation and meets your state's law. A lawyer can also explain the consequences of different choices — for example, whether you want your agent to act when ready or only if you become unable to decide.

Whichever route you choose, keep the original signed document in a safe place — a safe deposit box, a home safe, or with your lawyer. Give copies to your agent, your bank, your doctor, and anyone else who might need to see it. Do not give the original to your agent, because if they lose it or it gets damaged, you will have to start over.

Frequently Asked Questions

Can my agent use the power of attorney after I die?

No. A power of attorney ends automatically when you die. After that, the person named as executor in your will (if you have one) takes over managing your estate. If you do not have a will, the state decides who manages your property according to inheritance law.

What if I sign a power of attorney and then change my mind?

You can revoke it by signing a revocation document and having it notarized. Send copies to your agent, your bank, your doctor, and anyone else who has the original. The power of attorney is no longer valid once they receive the revocation.

Can I give power of attorney to more than one person?

Yes. You can name two or more agents. You can say they must act together (which requires agreement on every decision) or that they can act separately (which means either one can act alone). Acting together is safer but slower; acting separately is faster but riskier.

What if my agent is accused of stealing from me?

You can sue your agent in civil court to recover the money, and you can also report them to the police for theft or fraud. Your family members or the state can also bring a case. Keep records of all transactions your agent makes so you have proof if something goes wrong.

Do I need a lawyer to create a power of attorney?

No, but a lawyer can help make sure the document is correct and meets your state's law. If you use a blank form, check your state's requirements first. Some states require specific language or witness signatures, and a form that does not meet those requirements may not be accepted by banks or hospitals.