Most people don’t think about a power of attorney until they suddenly need one, usually because a parent had a stroke, a family member is deploying overseas, or someone is about to have surgery and wants to make sure their affairs are covered if something goes wrong. By then, it’s often too late to set one up the way you’d want. A power of attorney is one of those documents that only works if you create it before you actually need it.
Here’s what it is, what it covers, and how to set one up correctly.
What Is a Power of Attorney?
A power of attorney (POA) is a legal document that lets one person, called the principal, give another person, called the agent or attorney-in-fact, the legal authority to act on their behalf. That authority can be broad, covering nearly all financial and legal decisions, or narrow, limited to a single transaction like selling a specific piece of property.
Despite the name, an agent under a power of attorney doesn’t need to be an actual attorney. It’s simply the legal term for the person granted authority, whether that’s a spouse, adult child, sibling, or trusted friend.
Types of Power of Attorney
General Power of Attorney
Grants broad authority to handle financial and legal matters on the principal’s behalf, including banking, buying or selling property, managing investments, and filing taxes. A general power of attorney typically ends if the principal becomes incapacitated, unless it’s specifically written as a durable power of attorney.
Durable Power of Attorney
This is the version most people actually need for long-term planning. A durable power of attorney remains in effect even if the principal becomes mentally incapacitated, which is exactly the situation where having someone legally authorized to act matters most. Without the word “durable” and the specific language required by your state, a standard power of attorney typically becomes void the moment the principal loses capacity, at the worst possible time.
Limited (or Special) Power of Attorney
Grants authority for a specific purpose or a specific period of time, such as authorizing someone to sign closing documents on a home sale while the principal is out of the country. Once that task is complete, or the specified time period ends, the authority terminates automatically.
Springing Power of Attorney
Only takes effect upon a specific triggering event, most commonly the principal’s incapacitation, as certified by a doctor. This can sound appealing since the agent has no authority until it’s actually needed, but it can also create delays and complications if there’s a dispute about whether the triggering event has actually occurred. Many estate planning attorneys recommend an immediately effective durable power of attorney instead, paired with clear expectations about when the agent should actually start using it.
Medical (Healthcare) Power of Attorney
Authorizes an agent to make healthcare decisions on the principal’s behalf if they become unable to make those decisions themselves. This is a separate document from a financial power of attorney and is sometimes called a healthcare proxy, depending on the state. It’s often used alongside a living will, which states specific wishes about end-of-life medical treatment.
What a Power of Attorney Can Cover
Depending on how it’s drafted, a power of attorney can authorize an agent to:
- Manage bank accounts and pay bills
- Buy, sell, or manage real estate
- File and pay taxes
- Manage investments and retirement accounts
- Apply for government benefits on the principal’s behalf
- Handle business operations
- Make healthcare decisions (under a medical POA specifically)
- Access and manage digital accounts, if the document specifically addresses digital assets
What a Power of Attorney Cannot Do
- Continue after the principal’s death. A power of attorney terminates automatically at death. After that point, authority to manage the estate shifts to whoever is named executor under the will, or an administrator appointed by the court if there’s no will.
- Allow the agent to change the principal’s will. An agent cannot create, modify, or revoke a principal’s will, even with broad financial authority.
- Override the principal’s own decisions while they still have capacity. A power of attorney doesn’t strip the principal of their own legal rights. As long as the principal is mentally competent, they can still make their own decisions and can revoke the power of attorney at any time.
- Authorize actions outside what the document specifically grants. Agents are legally bound to act within the scope of authority actually written into the document, not whatever seems reasonable in the moment.
The Agent’s Legal Duties
An agent acting under a power of attorney has a fiduciary duty to the principal, meaning they’re legally required to act in the principal’s best interest, not their own. This generally includes:
- Acting only within the authority granted in the document
- Keeping the principal’s finances separate from the agent’s own
- Keeping accurate records of transactions made on the principal’s behalf
- Avoiding conflicts of interest
- Acting in good faith and with reasonable care
Misusing a power of attorney, such as using the principal’s funds for the agent’s personal benefit, can expose the agent to civil liability and, in serious cases, criminal charges for financial exploitation, particularly when the principal is an older or vulnerable adult.
How to Set Up a Power of Attorney
1. Decide What Type You Need
Consider whether you need broad, ongoing authority (durable) or something limited to a specific transaction, and whether a separate medical power of attorney is also needed.
2. Choose Your Agent Carefully
This should be someone you trust completely, who is organized enough to manage the responsibility, and who is willing to act in your best interest even under pressure from other family members. It’s also worth naming a backup agent in case your first choice is unable or unwilling to serve when needed.
3. Follow Your State’s Execution Requirements
Requirements vary by state but commonly include the principal’s signature, witnesses, and notarization. Some states have statutory POA forms that are recommended or required for certain purposes, particularly for real estate transactions.
4. Distribute Copies
Give copies to your agent, keep one in an accessible place, and consider providing copies to your bank, doctor, or attorney, depending on the type of POA. Some financial institutions have their own POA requirements or forms, so it’s worth checking with them directly if the document will be used for banking purposes.
5. Review It Periodically
Life changes, relationships change, and laws change. Reviewing your power of attorney every few years, or after a major life event like a divorce or the agent’s own health decline, helps make sure it still reflects your actual wishes.
Can a Power of Attorney Be Revoked?
Yes, as long as the principal still has legal capacity. Revocation generally needs to be in writing, and the principal should notify the agent and anyone relying on the document, such as banks or healthcare providers, that it’s no longer valid. Simply destroying the original document isn’t always enough if copies exist elsewhere, so formal written revocation is the safer approach.
Do You Need a Lawyer to Create a Power of Attorney?
Simple, limited powers of attorney can sometimes be handled using state-specific statutory forms without an attorney. But for a durable power of attorney covering significant assets, complex family dynamics, or business interests, having an attorney draft or review the document helps make sure it holds up when it’s actually needed, and that it says exactly what you intend, since ambiguous language in a POA can create serious problems at the exact moment someone is relying on it.
Final Thoughts
A power of attorney is really about trust translated into legal authority: deciding in advance who steps in if you can’t act for yourself, and exactly how much control they have when they do. It’s not a document most people enjoy thinking about, but having one in place before it’s needed is what makes it actually useful when the moment comes.
This article is for general informational purposes and does not constitute legal advice. Power of attorney laws vary significantly by state. Consult a licensed estate planning attorney in your state for guidance specific to your situation.
