To close a bank account on behalf of someone who has passed away, you must have legal authority to manage the account. Notify Bank of America.We'll ask you for the deceased customer's full legal name and Social Security number to identify their accounts. The lineofduty death or any death from offduty related activities of a member of the Department. ii. The first and foremost thing you must do to close a bank account upon the death of a loved one is to inform the bank of this death. Texas has never officially considered adopting a death with dignity law. However, citizen groups are actively working to legalize aid in dying in Texas. We are committed to being your bank of choice. (2) a bank account number, credit card number, or other financial account number; and. Navigating and closing a deceased person's bank account can be tricky.