An authorized signer generally cannot close a bank account. Banks reserve account closure for people with an ownership interest in the funds, and a signer, by definition, has none. You can write checks, make deposits, move money, and handle the day-to-day, but ending the banking relationship is a structural decision that belongs to the account owner.
What a Signer Is Actually Authorized to Do
An authorized signer acts as an agent for the account owner. Your name and signature are on file so you can conduct routine transactions: writing checks, making deposits, initiating transfers, and withdrawing cash. That’s the role, whether you were added to pay a relative’s bills, run a small business’s weekly errands, or help someone with limited mobility.
What falls outside your authority is anything that changes the account itself. Opening sub-accounts, changing the account type, adding or removing other signers, and closing the account are ownership-level decisions. Your name isn’t on the account as a proprietor; it’s there as a convenience. You have a key to the office. You don’t hold the lease.
Why Banks Refuse Closure Requests From Signers
From the bank’s side, the deposit agreement is a contract between the institution and the account owner. Closing the account terminates that contract, and only a party to the contract can end it. An authorized signer is a third party the owner brought in for access. If a bank let a signer dissolve the relationship, it would be exposed to liability whenever the owner hadn’t actually wanted the account closed.
General agency law reinforces this. An agent’s authority is limited to what the principal granted. Unless the account owner specifically authorized closure, your authority covers transactions, not termination. A branch employee who processes a closure from a signer alone is taking a real legal risk, and most banks train their staff to decline.
Draining the Account Doesn’t Close It
A common workaround is to withdraw every dollar and assume the account will quietly disappear. It won’t. A zero-balance account and a closed account are not the same thing, and the difference creates problems for the owner.
An account with no activity eventually gets flagged as dormant, typically after about 12 months. Once that happens, many banks charge monthly inactivity fees, and with no money in the account, the balance goes negative. After three to five years of dormancy — the exact period depends on your state — the bank closes the account and sends any remaining funds to the state through a process called escheatment.1Office of the Comptroller of the Currency. When Is a Deposit Account Considered Abandoned or Unclaimed? Reclaiming escheated funds from the state can take months.
If you drain the account and walk away, the owner is the one left with the fallout: negative balances, collection calls, and possibly a mark on their banking record through ChexSystems. The right move is to tell the owner the account needs to be formally closed by them.
Signer vs. Joint Account Holder
This is the distinction that trips people up. A joint account holder is a co-owner of the funds. An authorized signer is not. At the ATM the two roles look similar; legally they carry very different weight.
A joint holder shares ownership and typically has survivorship rights, meaning the funds pass to the surviving holder when one owner dies. Because joint holders are co-owners, most banks allow either holder to close the account, though some account agreements require both signatures. When one joint holder closes the account without telling the other, the bank is generally protected as long as the account terms allowed it.2Consumer Financial Protection Bureau. Can I Remove My Spouse From Our Joint Checking Account?
An authorized signer has zero ownership interest. You can’t inherit the funds, can’t stop the owner from removing your access, and can’t make structural changes to the account. If you’re unsure which role you hold, check the signature card or the account agreement. It will say whether you were added as an owner or a signer.
Power of Attorney Is the Instrument That Allows Closure
If you genuinely need legal authority to close someone’s account for them, a power of attorney is the tool built for that job. Under the Uniform Power of Attorney Act, adopted in some form by a majority of states, an agent granted general authority over banking and financial institution transactions can continue, modify, and terminate accounts on the principal’s behalf. That language explicitly covers closure.
A power of attorney is a fundamentally different instrument than an authorized signer designation. It’s a formal document, often notarized, in which the principal grants an agent specific or broad powers. You present the original or a certified copy to the bank, and once the bank accepts it, you can do whatever the document authorizes, including closing accounts and directing where the funds go.
The practical difference matters most when someone becomes incapacitated. A signer’s access is little help if the owner needs the account closed but can’t sign paperwork. A durable power of attorney survives the principal’s incapacity and gives the agent authority to handle that situation. If you’re helping an aging parent or a family member with a disability manage their finances, putting a durable power of attorney in place before a crisis saves a lot of difficulty later.
What Happens When the Account Owner Dies
Your authority as a signer ends the moment the account owner dies. This catches families off guard, especially when the signer has been running the owner’s finances for years. The death of the principal terminates the agency relationship, and any transactions you conduct after that point are unauthorized.
Once the bank learns of the death, it typically freezes the account. From there, only the executor or personal representative named in the owner’s will, or appointed by a probate court, can access or close the account. If the account had a joint holder with survivorship rights, that person takes ownership and can close it. A signer who was not a joint holder has no path to closure or access after the owner’s death.
Banks vary in how quickly they find out about a death, and some signers keep transacting before the bank is notified. That doesn’t make those transactions legal. You can face personal liability for withdrawals made after the owner’s death, and in serious cases, criminal exposure for misappropriating estate funds.
Business Accounts Follow Different Rules
The picture shifts for business bank accounts. A corporate or LLC account may have multiple authorized signers whose authority is defined not just by the bank’s signature card but by the company’s corporate resolution or operating agreement. If the board passes a resolution authorizing a specific officer to close accounts, the bank will generally honor it.
A business entity’s internal governance documents can grant much broader powers than a personal account’s signature card. A corporate resolution might authorize the company treasurer to open and close accounts, move funds between institutions, and negotiate credit facilities. In that setup, the signer isn’t exceeding their authority by closing an account; they’re acting within the scope the business explicitly defined. If you’re a signer on a business account and need to close it, check the corporate resolution on file with the bank to see whether your authority reaches that far.