What happens after you sign a power of attorney document

A power of attorney becomes active the moment you sign it — unless you wrote it to start only when you become incapacitated, which is called a springing power of attorney. Once it is in effect, your agent (the person you named) can act on your behalf when ready. They do not need permission from a court or anyone else to start using it. The document itself is your agent's authority.

Your agent will need an actual copy of the signed document to show banks, healthcare providers, or other organisations. Many places will not act on a power of attorney without seeing the original or a certified copy. You should make several certified copies at the time you sign — your lawyer or notary can do this — because you cannot predict how many organisations will ask for one.

The power of attorney stays in effect until you revoke it, you die, or (if you set an end date) that date arrives. If you become incapacitated and did not create a springing power of attorney, your agent can still use the document you signed while you were able.

Key Takeaways

  • Your agent can use the power of attorney the day you sign it by showing an original or certified copy to banks, doctors, or other organisations.
  • You must make certified copies before you need them, because organisations will usually not act on a photocopy or email.
  • Your agent has no duty to tell you what they are doing with the power of attorney unless your document says otherwise.
  • You can revoke a power of attorney at any time while you are mentally able, but you must notify every organisation your agent used it with.
  • If your agent misuses the power of attorney, you can sue them for breach of fiduciary duty, but you will need to prove what they did.

How your agent presents the power of attorney to a bank or organisation

Your agent walks in with the certified copy and tells the organisation what they need to do — withdraw money, transfer funds, access an account, sign a contract on your behalf. The organisation will ask to see the power of attorney. Your agent hands them the certified copy.

The organisation will usually photocopy it and keep the copy on file. Some organisations have their own power of attorney form they want you to sign instead of using yours. If this happens, your agent should ask whether the organisation will accept your existing power of attorney. Many will, especially if it is recent and clearly written. If they will not, you will need to sign their form — which means you have to be mentally able to do so. Your agent cannot sign a new power of attorney on your behalf.

Some organisations, particularly banks and investment firms, move slowly. They may say they need to verify the document with a lawyer or check it against their own requirements. This can take days or weeks. Your agent should ask for a timeline and follow up if it stretches beyond what they were told.

What your agent can and cannot do

Your agent can only do what the power of attorney document says they can do. If you gave them a general power of attorney, they can handle almost any financial or legal matter — sell property, manage investments, pay bills, sign contracts. If you gave them a limited power of attorney, they can do only the specific things you listed — perhaps sell one piece of property, or manage your bank account but nothing else.

Your agent cannot change your will, make decisions about your medical care (unless you gave them a separate healthcare power of attorney), vote on your behalf, or do anything you explicitly forbade in the document. If your agent tries to do something outside their authority and an organisation catches it, that organisation will refuse. If they succeed and you find out later, you can sue.

Your agent also cannot use the power of attorney after you die. Once you die, the document is void. Your executor (named in your will) takes over, and they have different legal authority. If your agent continues to use the power of attorney after your death, they are committing fraud.

Keeping track of what your agent does

You have the right to ask your agent what they have done with the power of attorney at any time. They do not have to volunteer this information — the law does not require them to send you statements or reports unless your power of attorney document says so. But if you ask directly, they must tell you.

If you are concerned about misuse, you can ask the organisation (your bank, brokerage, or other entity) for copies of transactions your agent made. Banks and investment firms will usually provide this to you without your agent's permission, because you are the account owner. Keep these records in case you need to prove later that your agent acted improperly.

Some people add language to their power of attorney requiring the agent to keep records or report to a third party. This is optional but can prevent problems. If you did not include this and you are now worried, you cannot add it retroactively — you would have to revoke the existing power of attorney and create a new one.

How to revoke a power of attorney

You can revoke a power of attorney at any time as long as you are mentally able to understand what you are doing. You do not need a lawyer. Write a straightforward statement that says you revoke the power of attorney, sign it, and have it notarised. Some states have a specific revocation form, but a plain statement works in most places.

The critical step is notifying everyone your agent used the power of attorney with. Send a certified copy of your revocation to your bank, investment firm, healthcare provider, employer, insurance company, and any other organisation where your agent acted. Keep proof that you sent it. If you do not notify them, your agent may still be able to use the old power of attorney because the organisation has no way to know it has been revoked.

If your agent refuses to return the original document after you revoke it, you cannot force them to, but the revocation is still valid. The organisation will honour the revocation once they receive it. If your agent tries to use the power of attorney after you have revoked it and notified the organisation, that organisation should refuse. If they do not, you can sue both the organisation and your agent.

What to do if your agent misuses the power of attorney

If you discover your agent has used the power of attorney to take money, sign contracts, or do other things you did not authorise, you can sue them for breach of fiduciary duty. This means they violated the legal obligation to act in your interest. You will need to prove what they did — bank statements, forged signatures, witnesses, or other evidence.

You can also report the misuse to law enforcement if it amounts to theft or fraud. Contact your local police department or the state attorney general's office. They may investigate, but they will not recover money for you — that is what a civil lawsuit does. A lawsuit is slower but gives you a chance to get your money back.

If the misuse happened at a bank or other organisation and they failed to catch it, you may also have a claim against them. Banks have a duty to verify signatures and watch for unusual activity. If they ignored red flags, they may be liable. Consult a lawyer who handles financial fraud before you decide whether to pursue this.

Using a power of attorney for healthcare decisions

A healthcare power of attorney (also called a healthcare proxy or medical power of attorney) works differently from a financial one. Your agent can make medical decisions only if you are unable to make them yourself — unconscious, in a coma, or mentally incapacitated. They cannot use it while you are awake and able to decide.

Your agent presents the healthcare power of attorney to a hospital or doctor the same way they would present a financial one — with a certified copy. The doctor will keep it on file. Your agent can then consent to surgery, refuse treatment, move you to hospice, or make other medical choices on your behalf.

Healthcare organisations often have their own forms they prefer. Ask your doctor in advance whether they will accept your power of attorney or whether you need to sign their form. Doing this while you are healthy means you will not have to worry about it in an emergency.

Frequently Asked Questions

Can my agent use the power of attorney to give themselves money or property?

Legally, no — your agent has a fiduciary duty to act in your interest, not their own. But they can do it anyway, and you will have to sue to recover the money. Some states allow an agent to be paid a reasonable fee for their work, but only if the power of attorney document says so. Anything beyond that is theft.

What if I become mentally incapacitated and never revoked the power of attorney?

The power of attorney stays valid. Your agent can continue to use it. If you are concerned they might misuse it, a family member or friend can ask a court to appoint a guardian or conservator to oversee them, but this requires a lawsuit and takes time.

Do I have to tell my agent I created a power of attorney?

No. You can keep it secret. But if you do, your agent will not know it exists when you need them to use it. Most people tell their agent and keep a copy with their will or in a safe place where family can find it.

Can I create a power of attorney that starts only when I am incapacitated?

Yes, this is called a springing power of attorney. It does not become active until a doctor certifies that you are incapacitated. Some organisations are slow to accept springing powers of attorney because they have to verify the incapacity first. An when ready power of attorney is usually faster to use.

What happens to the power of attorney if I move to a different state?

Most states honour powers of attorney signed in other states, but some have specific requirements about how they must be written. If you move, ask a lawyer in your new state whether your existing power of attorney will be accepted or whether you should create a new one.