What Is a Power of Attorney?
A power of attorney (POA) is a legal document that lets you (the "principal") name another person (your "agent" or "attorney-in-fact") to act on your behalf. Despite the name, your agent does not need to be a lawyer—it's usually a spouse, adult child, sibling, or close friend.
A POA can be broad or narrow. You might grant authority to manage all of your finances, or just to sign paperwork for a single real estate closing. The key point that surprises many families: a power of attorney only works while you are alive. It is a tool for planning ahead—protecting you during illness, injury, or incapacity—not for settling an estate after death.
The Main Types of Power of Attorney
There are several kinds of POA, and most people need more than one. The differences come down to what the agent can do and when their authority starts and stops.
| Type | What it covers | When it ends |
|---|---|---|
| General POA | Broad financial and legal decisions | When you become incapacitated, revoke it, or die |
| Durable POA | Financial/legal decisions that continue through incapacity | When you revoke it or die |
| Medical (Healthcare) POA | Medical treatment decisions if you can't speak for yourself | When you revoke it or die |
| Springing POA | Kicks in only when a defined event occurs (usually incapacity) | When you revoke it or die |
The word "durable" is the one to watch. A plain general POA becomes useless the moment you lose mental capacity—exactly when you need it most. A durable power of attorney is written to survive incapacity, so your agent can keep paying bills and managing accounts if you have a stroke or develop dementia.
A medical power of attorney (also called a healthcare proxy or healthcare POA) is separate from the financial one. It names someone to make treatment decisions and is often paired with a living will, which spells out your wishes about life support and end-of-life care.
How to Get a Power of Attorney, Step by Step
- Decide what authority you want to grant. Financial, medical, or both? Broad or limited?
- Choose a trustworthy agent—and a backup in case your first choice can't serve.
- Get the right form for your state. POA laws vary, so use a form that complies with your state's statute. Many states publish official statutory forms.
- Fill it out carefully, specifying powers, effective dates, and whether it is durable.
- Sign it with the required formalities. Most states require a notary public; many also require witnesses, especially for medical POAs.
- Distribute copies to your agent, your doctor, and relevant banks or institutions. Keep the original somewhere safe but accessible.
You can complete a power of attorney form yourself for a specific, simple need, but an attorney is worth the cost for complex estates or blended families. Naming your POA is a natural part of a broader estate planning checklist.
Medical vs. Financial: Why You Likely Need Both
These two documents do completely different jobs. A financial POA lets your agent handle money—banking, bills, taxes, property. A medical POA lets your agent talk to doctors and consent to or refuse treatment. One person can hold both roles, or you can split them. Hospitals will not honor a financial POA for medical decisions, and vice versa, so don't assume one covers the other.
What Happens at Death: A POA Ends
This is the single most important thing to understand. Every power of attorney terminates automatically when the principal dies. Your agent has no authority to pay the deceased's bills, close accounts, or distribute property.
After death, authority passes to the executor (or "personal representative") named in the will. The probate court issues "letters testamentary" (or "letters of administration" if there is no will), which are the legal proof that lets the executor act. If a family member keeps using a POA after death to move money, that can be fraud. When someone passes, follow a proper what to do when someone dies checklist instead of relying on the old POA.
Cost and Common Mistakes
A POA can be inexpensive. State statutory forms are often free, notarization typically costs $5–$50, and hiring an attorney to draft one usually runs a few hundred dollars. Tools like EstateWrap can help you keep these documents organized alongside the rest of your plan.
Watch out for these frequent errors:
- Skipping "durable" language, leaving the POA void at the exact moment of incapacity.
- Assuming a POA works after death—it never does.
- Not naming a backup agent.
- Failing to notarize or witness per your state's rules, making the document unenforceable.
- Using an out-of-state or outdated form that banks refuse to accept.
Review your POA every few years and after major life changes, and make sure your named agent still knows where to find it.