For the deceased's bank account, the account number and exact dollar amount in the account must be provided. When it comes to handling the decedent's bank accounts, we're here to make the process as simple and straightforward as possible.You should produce the concerned Bank branch the death certificate from municipal authority as proof of that persons demise. To close a bank account on behalf of someone who has passed away, you must have legal authority to manage the account. To close a bank account after death, you must completely liquidate its funds. Without naming a POD beneficiary, your heir will need Letters Testamentary from the Surrogate's Court. The letter shall start with the sender's address, date, bank's address, and with a salutation.