Sample Letter to Bank Informing the Death of the Account Holder. The death claim letter should be written in the formal letter format.To close a bank account on behalf of someone who has passed away, you must have legal authority to manage the account. How do l write a letter to the bank to take my name off as a next of kin on a friend's death certificate taking to the bank? Government agencies and programs to notify of a death. A Letter of Authority, appointing an Executor, from the Probate Court is required. This person will be able to access the money in your account when you die. Call or visit your local bank branch to find out how to name a POD beneficiary. Will bank accounts be frozen? Sample Letter – Asking for a debt write-off when someone is deceased.