What you can and cannot do with power of attorney at a bank
A power of attorney document does not automatically let you open a new bank account in someone else's name. Banks treat a power of attorney as permission to act on behalf of an existing account holder — to withdraw money, pay bills, or manage funds that already belong to that person. Opening a brand-new account is different: it creates a new legal relationship between the bank and the account holder, and the bank will require that person to sign the paperwork themselves, even if they have given you power of attorney.
What you can do with power of attorney varies by bank and by the specific powers written into your document. Most commonly, you can access an existing account, move money between accounts, pay bills, and make deposits or withdrawals. Some banks allow you to add yourself as an authorized user or signer on an existing account using power of attorney. What you cannot do is create a new account that belongs to the other person without their direct involvement in the opening process.
The reason banks draw this line is legal: opening an account requires the account holder to agree to the bank's terms and conditions. A power of attorney gives you the right to act for someone, but it does not replace their consent to a contract. The bank needs to know that the person whose name will be on the account actually wants that account to exist.
Key Takeaways
- Power of attorney lets you manage an existing account but does not let you open a new account in someone else's name without their signature.
- The account holder must sign the bank's application and agree to the account terms, even if you hold power of attorney.
- You can use power of attorney to add yourself as a signer or authorized user on an existing account at many banks, which may be what you actually need.
- If the account holder cannot sign due to illness or incapacity, some banks have procedures to open an account with power of attorney, but you will need to ask the bank directly and provide medical documentation.
- Different banks have different rules, so call ahead and ask what documents they need before you visit.
When the account holder can still sign the paperwork
If the person whose account it will be can still sign documents — even if they need help understanding them or have difficulty writing — the simplest path is to go to the bank together. Bring the power of attorney document, but understand that the bank's main concern is getting the account holder's signature on their application. You can be there to help explain things, handle paperwork, or answer questions, but the bank will want to see the person sign.
Many people hold power of attorney specifically because the other person is aging or has early cognitive decline, but can still manage some tasks with support. If that is your situation, call the bank's customer service line before you visit and tell them: "I hold power of attorney for [person's name], and they want to open an account. What do you need from us?" The bank can tell you whether they have any special procedures, whether they want to meet with the account holder alone first, or whether they have concerns about capacity that you should know about in advance.
Adding yourself as a signer when power of attorney is not enough
If you already have access to someone's account through power of attorney but you want to be listed as an official signer or authorized user, you may not need to open a new account at all. Many banks allow you to add yourself to an existing account using the power of attorney document. This gives you the same practical access — you can withdraw money, make deposits, pay bills — but it also creates a clear paper trail showing the bank that you have the right to be there.
Being listed as a signer or authorized user is often cleaner than relying only on power of attorney, because it means the bank's own records show you have permission. Some banks will do this over the phone; others require you to visit in person or submit a form. Call the bank and ask: "Can I add myself as a signer on this account using a power of attorney document?" If they say yes, ask what form or process they use.
When the account holder cannot sign due to incapacity
If the person whose account it will be has lost the ability to sign — due to stroke, dementia, or another condition — you face a harder problem. Power of attorney does not automatically override the bank's requirement for the account holder's signature, because the bank still needs to know that the person consents to the account. However, some banks have procedures for this situation, and they vary widely.
A few banks will open an account with power of attorney if you provide medical documentation showing the account holder lacks capacity to sign. This might be a letter from a doctor, a guardianship order, or a court information of incapacity. Other banks will refuse entirely and tell you that you need a guardianship or conservatorship instead — a court order that gives you broader legal authority than power of attorney alone.
Before you assume you need to go to court, call the bank directly and describe the situation: "The account holder has [condition], and their doctor says they cannot sign documents. I hold their power of attorney. Can you open an account?" Some banks will work with you; others will not. If the bank refuses, ask whether they would accept a guardianship or conservatorship order, so you know what your next step would be.
What documents to bring to the bank
Bring the original power of attorney document or a certified copy. Most banks will not accept a photocopy or a digital image; they want to see the actual document or a copy certified by a notary or the court that issued it. Call ahead and ask whether they need the original or a certified copy, because some banks have specific rules.
Bring a government-issued photo ID for yourself. Bring the account holder's ID as well if they are coming with you. If the account holder is not present, bring any medical documentation you have — a doctor's letter, a hospital discharge summary, or a court order — that explains why they cannot sign. Bring the account holder's Social Security number and any information about how they want the account set up (checking, savings, minimum balance, etc.).
If you are adding yourself as a signer on an existing account, bring the same documents plus the account number. Some banks have a specific form for adding signers; ask when you call whether you should fill it out in advance or whether they will provide it at the branch.
What happens if the bank refuses
If a bank refuses to open an account or add you as a signer, even with power of attorney, you have a few options. First, ask the bank manager directly what their policy is and whether there is any way to move forward. Sometimes a manager has more flexibility than a teller or customer service representative.
Second, try a different bank. Large national banks often have stricter policies than credit unions or smaller regional banks. If one bank refuses, another might not. Call ahead to ask about their power of attorney policy before you visit.
Third, if the account holder truly lacks capacity to sign and the bank refuses to work with power of attorney, you may need to pursue guardianship or conservatorship through the court. This is a more formal and expensive process, but it gives you broader authority than power of attorney and banks cannot refuse to work with you. Talk to an elder law attorney or your local legal aid office about whether this is necessary in your situation.
Frequently Asked Questions
Can I open a joint account with power of attorney?
No. A joint account requires both account holders to sign the application. Power of attorney does not replace the other person's signature. If you want a joint account, the other person must sign the paperwork themselves, even if you hold power of attorney.
What if the bank says they need a guardianship instead of power of attorney?
Some banks have policies that require guardianship for certain transactions. If a bank refuses power of attorney, ask whether they would accept a guardianship order and what the process would be. You may also ask to speak with a manager or call their legal department to see whether there is any flexibility in their policy.
Can I use power of attorney to open an account online?
Most online banks require the account holder to sign up themselves, because they verify identity through digital means. Power of attorney documents are harder to verify online. If you need to open an account online, call the bank's customer service line and ask whether they have a process for power of attorney situations.
Do I need to tell the bank about the power of attorney if I am just helping someone open their own account?
You do not have to tell the bank, but it can be helpful. If you mention it upfront, the bank knows why you are there and can tell you what documents they need. If you do not mention it and the bank asks why you are helping, you can explain then.
What if the power of attorney document is old or from another state?
Banks sometimes worry about old power of attorney documents because they may have been revoked. If your document is more than a few years old, bring a letter from an attorney or the court that issued it confirming it is still valid. If the document is from another state, most banks will still accept it, but call ahead to ask whether they have any concerns about out-of-state documents.