What Is a Power of Attorney? Types, Uses and How to Get One
It's one of the most useful legal documents most people never get round to. Here's what a power of attorney does and which type fits your situation.
A power of attorney (POA) is a legal document that lets you appoint someone you trust — called your agent or attorney-in-fact — to make decisions or act on your behalf. It can cover money, property, healthcare or a single specific task. The most important version for many families is a durable power of attorney, which stays in effect if you become unable to make decisions yourself.
This is general legal information, not legal advice. Power of attorney rules vary by state and country. For your own situation, speak to a qualified lawyer or use your state’s official forms.
Why a power of attorney matters
Most people assume that if something happened to them, their spouse or adult children could simply step in. Often they can’t. Without a power of attorney, banks, investment firms and even some medical providers may refuse to deal with family members. The alternative is usually a court-appointed guardianship or conservatorship, which can be slow, expensive and public.
A power of attorney avoids that. You choose who acts for you, what they can do and when their authority starts — while you’re still able to make that choice.
Types of power of attorney
| Type | What it covers | When it ends |
|---|---|---|
| General | Broad financial and legal matters | If you become incapacitated, or when revoked |
| Durable | Same as general, or as specified | Continues through incapacity; ends at death or revocation |
| Limited (special) | One specific task or time period | When the task is done or the date passes |
| Healthcare (medical) | Medical decisions if you can’t make them | At death or revocation |
| Springing | Takes effect only on a trigger, usually incapacity | At death or revocation |
General power of attorney
Gives your agent wide authority over your financial and legal affairs: banking, paying bills, managing property, filing taxes. It’s often used for convenience — for example, while you’re working abroad. A non-durable general POA usually stops if you lose mental capacity, which is exactly when many families need it most.
Durable power of attorney
“Durable” means the document stays valid if you become incapacitated. This is the type estate planners most often recommend as part of a basic plan. In many US states, a POA is presumed durable unless it says otherwise, but you should never assume — the wording matters.
Limited or special power of attorney
Covers a single task, such as selling a car, signing documents at a property closing you can’t attend, or managing one account. It ends when the task is complete.
Healthcare power of attorney
Sometimes called a healthcare proxy or medical power of attorney, it lets your agent make medical decisions if you can’t. It’s often paired with a living will or advance directive, which sets out your wishes about treatment.
Springing power of attorney
Only takes effect when a specific event happens, usually a doctor certifying that you’re incapacitated. It sounds reassuring, but it can cause delays at the worst moment while everyone waits for the paperwork. Some states don’t allow springing POAs at all.
What an agent can and can’t do
Your agent must act in your best interests, keep your money separate from theirs and keep records. This is called a fiduciary duty. Depending on the document, they may be able to pay bills, manage investments, deal with government benefits and sign contracts for you.
Most POAs don’t allow the agent to make or change your will, and many restrict gifts to themselves. An agent can’t make decisions for you after your death — at that point your will and executor take over.
How to choose the right agent
- Pick someone you trust completely with money and sensitive decisions.
- Choose someone organised and willing to keep records.
- Consider where they live — nearby can make practical tasks easier.
- Name at least one backup agent in case your first choice can’t serve.
- Talk to them first. Make sure they understand and accept the role.
How to set up a power of attorney
- Decide which types you need — most adults benefit from a durable financial POA and a healthcare POA.
- Get the right form. Many US states publish statutory forms; a lawyer can draft one tailored to you.
- Specify the powers you’re granting and any limits.
- Sign according to your state’s rules — usually before a notary, and sometimes with witnesses.
- Give copies to your agent, your bank and your doctor, and keep the original somewhere safe.
The American Bar Association has helpful guidance on powers of attorney and related estate planning documents.
How to revoke or change a power of attorney
As long as you have mental capacity, you can cancel a POA at any time. Put the revocation in writing, sign it (often before a notary), and send copies to your agent and any institutions that had the old document. Then create a new one if needed.
How much does a power of attorney cost?
Using a free state statutory form and paying for a notary can cost very little. Having a lawyer prepare POAs, often as part of an estate planning package, typically costs more but reduces the risk of mistakes. Given what’s at stake, many people find professional help worth it, especially if they have property, a business or complex family circumstances. If you’re budgeting for it, see our guide on creating a monthly budget.
A power of attorney is one of those documents that feels unnecessary right up until the day it’s essential. Putting one in place now is a genuine gift to the people you love. For another common legal process, read our guide to how small claims court works.
Frequently asked questions
What is a power of attorney in simple terms?
It’s a legal document that lets you choose someone to make decisions or act on your behalf for money, property or healthcare.
What is the difference between a power of attorney and a durable power of attorney?
A standard power of attorney usually ends if you become incapacitated. A durable power of attorney stays in effect.
Does a power of attorney end at death?
Yes. At death, authority passes to the executor named in your will.
Do I need a lawyer for a power of attorney?
Not always. Many states offer statutory forms. A lawyer is wise if your finances or family situation are complex.
