To close a bank account on behalf of someone who has passed away, you must have legal authority to manage the account. You need to take your mother's death certificate to the bank.The letter shall start with the sender's address, date, bank's address, and with a salutation. To close a bank account after death, you must completely liquidate its funds. In fact, a death claim letter format for bank is straightforward. The official website of the U.S. Air Force. Notify Bank of America. We'll ask you for the deceased customer's full legal name and Social Security number to identify their accounts. On Saturday at a.m. Commissioner of Education Michael Williams updated the board on recent activity of the Texas.