Sample Letter to Bank Informing the Death of the Account Holder. The death claim letter should be written in the formal letter format.Notify Bank of America. We'll ask you for the deceased customer's full legal name and Social Security number to identify their accounts. Sample Letter – Asking for a debt write-off when someone is deceased. Prepare a list of people to notify of your death. Include their name, address, telephone number, and email address (This should be kept up to-date). You'll need the person's Social Security number and certified copies of their death certificate for most agencies and programs. Social Security and Medicare. Closing a bank account when someone passes away isn't difficult, as long as you have the right paperwork for the the teller or banker.