A power of attorney lets someone else handle money, property, or medical decisions on your behalf

A power of attorney is a legal document that gives another person — called an agent or attorney-in-fact — the authority to act for you in specific situations. The person who signs the document (you) is called the principal. The agent does not need to be a lawyer. They can be a family member, friend, or professional fiduciary, and they can only do what the document explicitly allows them to do.

The scope of a power of attorney depends entirely on what you write into it. You might give someone authority to pay your bills and manage your bank account, or you might limit them to selling a single piece of property. You might make the document active when ready, or you might make it "springing" — meaning it only takes effect if you become unable to manage your own affairs. The key is that you decide the boundaries before you sign.

A power of attorney is not the same as a will. A will takes effect after you die and controls who gets your property. A power of attorney is active while you are alive and lets someone act for you right now — or at a moment you specify in advance.

Key Takeaways

  • A power of attorney gives another person legal authority to handle specific financial, property, or medical decisions you name in the document.
  • You control exactly what powers the agent has — you can limit them to one task (like selling a house) or give broad authority over all finances.
  • The document can be active when ready or "springing," meaning it only takes effect if you become incapacitated.
  • An agent can be a family member, friend, or paid professional, and they have a legal duty to act in your best interest.
  • You can revoke a power of attorney at any time while you are mentally capable of doing so.

Financial powers of attorney handle money and property

A financial power of attorney (also called a durable power of attorney for finances) gives your agent authority over your bank accounts, investments, real estate, and other assets. The scope can be narrow or broad. You might authorize them to deposit checks and pay bills, or you might give them power to buy and sell property, manage investments, or file tax returns on your behalf.

This document is useful if you are traveling for an extended period and need someone to pay your mortgage and utilities, or if you are aging and want to plan ahead in case you become unable to manage finances yourself. It is also used when someone is already incapacitated — a family member can use a durable financial power of attorney to avoid going to court for a guardianship.

The agent's authority is limited to what the document says. If you give them power to manage your bank account but not to sell your house, they cannot sell your house. Banks and financial institutions will ask to see the original power of attorney document before they honor the agent's requests, so you will need to keep a copy on file with each institution.

Healthcare powers of attorney let someone make medical decisions

A healthcare power of attorney (also called a healthcare proxy or medical power of attorney) gives your agent authority to make medical decisions for you if you cannot make them yourself. This includes decisions about surgery, medication, life support, and end-of-life care. The agent speaks to your doctors, reviews your medical records, and tells the hospital what treatment you would want.

This document does not give your agent authority over your finances or property — only medical matters. It is separate from a financial power of attorney, though you can name the same person as agent for both documents if you choose.

A healthcare power of attorney is different from a living will. A living will is a written statement of what medical treatment you do or do not want in specific situations (like if you are in a coma). A healthcare power of attorney gives someone the power to make those decisions for you in real time, based on your values and what the doctors recommend.

Limited powers of attorney restrict the agent to one task or time period

A limited power of attorney gives your agent authority to do one specific thing or to act for a limited time. You might create a limited power of attorney to let someone sell your car while you are out of the country, or to let them sign documents at a real estate closing on your behalf. Once the task is done or the time period ends, the agent's authority stops.

Limited powers of attorney are common in real estate transactions, vehicle sales, and situations where you need someone to represent you for a single event. They are also used when you want to give someone temporary authority — for example, to manage your finances while you are hospitalized for a month.

Because the scope is narrow and time-bound, limited powers of attorney carry less risk than broad, open-ended documents. The agent cannot act beyond what you have authorized, and the authority automatically expires.

Springing powers of attorney only set up if you become incapacitated

A springing power of attorney does not take effect when ready. Instead, it "springs" into effect only if you become incapacitated — unable to manage your own affairs due to illness, injury, or cognitive decline. The document specifies who determines incapacity (usually your doctor) and what that means.

Springing powers of attorney are popular with people who want to plan ahead but do not want to give up control right now. You keep full authority over your finances and medical decisions until the moment you cannot exercise that authority anymore. Then the agent steps in automatically.

The downside is that springing powers can create delays and disputes. If you become incapacitated, the agent may need to get a doctor's letter confirming incapacity before banks or hospitals will honor the document. Some institutions are reluctant to accept springing powers because the triggering event is not always clear-cut. If there is disagreement about whether you are truly incapacitated, the agent may have to go to court to enforce the document.

What an agent can and cannot do

An agent's powers are limited to what the power of attorney document says. If the document gives them authority to pay bills, they can pay bills. If it does not mention selling property, they cannot sell property, even if they think it is in your best interest. Banks, hospitals, and government agencies will only honor requests that fall within the document's scope.

An agent has a legal duty to act in your best interest, not their own. They cannot use your money for their own expenses, cannot give themselves gifts from your accounts, and cannot make decisions that benefit them at your expense. If they violate this duty, you can revoke the power of attorney and potentially sue them for damages.

An agent cannot change your will, make decisions about your body after you die, or act on your behalf in ways that are illegal. They also cannot delegate their authority to someone else unless the power of attorney document explicitly allows it.

How to revoke or change a power of attorney

You can revoke a power of attorney at any time as long as you are mentally capable of understanding what you are doing. Revocation is usually done by signing a written revocation document and giving copies to your agent, your bank, your doctor, and anyone else who has a copy of the original power of attorney. Some states also allow you to revoke by destroying the original document or by signing a new power of attorney that replaces the old one.

If your agent dies, becomes incapacitated, or refuses to act, the power of attorney ends unless you named a successor agent in the original document. If you did name a successor, they automatically step in. If you did not, you will need to sign a new power of attorney naming a new agent.

You can also modify a power of attorney by signing an amendment that changes specific powers or adds new ones. However, most institutions prefer a completely new document rather than an amendment, so it is often simpler to revoke the old one and sign a new one.

Frequently Asked Questions

What happens to a power of attorney when I die?

A power of attorney ends when ready when you die. The agent no longer has any authority. Your will and your estate's executor take over from that point. If you want someone to manage your property after you die, you need a will or a trust, not a power of attorney.

Can I have more than one agent under a power of attorney?

Yes. You can name multiple agents and decide whether they must act together (both must agree) or separately (either one can act alone). Acting together is safer because it requires agreement, but it can be slower. Acting separately is faster but carries more risk if one agent acts against your interests.

Does my agent have to tell me what they are doing?

Your agent should keep you informed of their actions, especially if you are still capable of understanding. However, if you are incapacitated, the agent may not be able to report to you directly. Some states require agents to keep records and file annual accountings with the court, depending on the type of power of attorney and whether a guardianship is involved.

What if my agent and I disagree about a financial decision?

If you are still mentally capable, you can override your agent's decisions and revoke the power of attorney. If you are incapacitated and believe your agent is acting against your interests, a family member or friend can ask the court to remove the agent and appoint a guardian instead.

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

You do not legally need a lawyer, but it is often a good idea. A lawyer can make sure the document is valid in your state, covers all the situations you want to plan for, and is drafted clearly so banks and hospitals will accept it. Many states have standard forms you can use, but a custom document from a lawyer is more thorough.