The person who grants power of attorney chooses you, not the other way around
You do not explore to become a power of attorney. The person who wants to give you that authority — called the principal — must ask you and you must agree. Once you both consent, the principal signs a legal document that names you as their agent. That document is what makes you a power of attorney. The process is straightforward, but it has to follow your state's rules about how the document is signed and witnessed.
The principal can choose anyone they trust: a family member, a friend, a professional like an accountant or attorney, or multiple people to act together or separately. There are no formal qualifications or licenses required. You do not need to be a lawyer, pass a test, or register with any government office. What matters is that the principal trusts you to handle their affairs the way they would want.
Key Takeaways
- The principal (the person granting power of attorney) must choose you and sign a legal document naming you as their agent.
- Your state's laws set the rules for how the document must be signed, witnessed, and notarized — requirements vary by state.
- You have no legal authority until the principal signs the document and, in most cases, a notary public witnesses the signature.
- You can decline the role, and the principal can revoke your authority at any time by signing a revocation document.
- Some powers of attorney take effect when ready; others (called "springing" powers) only set up if the principal becomes incapacitated.
What the principal has to do to make you a power of attorney
The principal starts by deciding what powers they want to give you. They might grant you authority over finances only, healthcare decisions only, or both. They might limit your powers to a specific task (like selling a house) or give you broad authority to act on their behalf in most matters.
Next, the principal obtains or creates a power of attorney document. This can be a form from their state's bar association, a template from an online legal service, or a document drafted by an attorney. The document must name you as the agent and describe the powers being granted. It must be signed by the principal in front of a notary public. Some states also require one or two witnesses to sign. Once the document is signed and notarized, it is valid — you now have the legal authority it describes.
The principal keeps the original document or gives it to you, depending on what they plan to do with it. If they want you to use it right away, they typically give you a copy. If it is a "springing" power of attorney (one that only takes effect if they become unable to make decisions), they might keep it in a safe place and give it to you only if that event happens.
Your role and responsibilities once you are named
Once you are named as a power of attorney, you have a legal duty called a fiduciary duty. This means you must act in the principal's best interest, not your own. You must keep their money and property separate from yours, keep records of what you do with their assets, and avoid conflicts of interest. If you misuse the authority — for example, by transferring the principal's money to yourself — you can be sued and held personally liable.
You are expected to act honestly and carefully. If you do not understand something or are unsure whether you should take a certain action, you can ask an attorney for guidance. You can also ask the principal to clarify what they want you to do. The principal remains in control; they can give you new instructions, limit your powers, or revoke the document entirely at any time.
You do not have to accept the role. If the principal asks you to be their power of attorney and you do not want to, you can say no. If you accept and later change your mind, you can resign by notifying the principal and anyone else who relies on your authority (like a bank). Your resignation should be in writing.
How state laws affect the process
Every state has its own rules about power of attorney documents. Most states require the principal's signature to be notarized. Some states require one or two witnesses in addition to the notary. A few states have their own official forms that must be used. Some states recognize "springing" powers of attorney (which set up only if the principal becomes incapacitated), while others do not.
If the principal wants to give you authority over healthcare decisions, the document may be called a healthcare power of attorney, medical power of attorney, or healthcare proxy, depending on the state. The rules for these documents are often different from financial powers of attorney — they may require different witnesses or different language.
The safest approach is for the principal to have an attorney in their state review or draft the document. This costs money but ensures the document will be accepted by banks, healthcare providers, and government offices. If the principal uses an online template or form, they should check whether it meets their state's requirements.
What happens if the principal becomes incapacitated
If the principal becomes unable to make decisions (due to illness, injury, or cognitive decline) and the power of attorney document does not cover that situation, you may not have authority to act. This is why many people create a "springing" power of attorney — one that automatically takes effect if they become incapacitated — or a durable power of attorney, which remains valid even if they lose capacity.
If there is no power of attorney in place and the principal cannot make decisions, a family member or friend may have to ask a court to appoint a guardian or conservator. This process is slower, more expensive, and more public than using a power of attorney. It is one reason the principal should plan ahead and create these documents while they are still able to make decisions.
When you might need to show the power of attorney document
Once you are named as a power of attorney, you will need to show the document to prove your authority. Banks ask to see it before letting you access the principal's accounts. Healthcare providers ask to see it before discussing medical information or making treatment decisions. Government offices, insurance companies, and other organizations may also ask for proof.
You should keep certified copies of the power of attorney document. A certified copy is one that has been stamped by the notary or the court as a true copy of the original. Some organizations will accept a photocopy; others require a certified copy. It is a good idea to ask the principal's bank and healthcare providers what they need before you have to use the document.
If the principal revokes the power of attorney, you should notify anyone who has a copy and tell them the document is no longer valid. The principal can do this by signing a revocation document, also notarized, and distributing it to the same places where the power of attorney was filed or used.
Frequently Asked Questions
Do I need to be a lawyer to be a power of attorney?
No. You can be anyone the principal trusts — a family member, friend, accountant, or professional advisor. There are no licenses, tests, or formal training required. The only requirement is that the principal chooses you and you agree to the role.
Can I be a power of attorney for more than one person?
Yes. You can be named as a power of attorney for multiple people. Each person signs their own power of attorney document naming you as their agent. Your authority with each person is separate and based on what their document says.
What if I do not want to be a power of attorney anymore?
You can resign by notifying the principal in writing. You should also notify any banks, healthcare providers, or other organizations that have been relying on your authority. Once you resign, you no longer have any legal power to act on the principal's behalf.
Can the principal change their mind and take back the power of attorney?
Yes. The principal can revoke a power of attorney at any time by signing a revocation document, usually notarized. They should give copies of the revocation to you and to anyone who has been relying on the power of attorney, such as their bank or healthcare provider.
What if someone challenges whether I really have the authority the document claims?
You show them the signed, notarized power of attorney document. If they still refuse to accept it, you may need to have an attorney send them a letter explaining your authority, or in rare cases, go to court to enforce it. This is why using a proper, state-compliant document matters — it is harder to challenge.