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. How Do Bank Closure Letters Work?Tell them that you wish to close account number xyz and what to do with any balance of funds. Sign it and date it. You can use this letter template to write to the bank to request the closure of a direct payments account following the death of the account holder. Sub: Request to close an account due to death. Sample Letter to Bank Informing the Death of the Account Holder. The death claim letter should be written in the formal letter format. Start with Basic Information: Your application should begin with your full name, account number, and current address aligned to the left side. Please let me know if any other documents are required for claiming the amount of deceased.