An estate administrator must file the final tax return for a deceased person separate from their estate income tax return. You will have to file all necessary tax forms and open a checking account in the name of the estate to pay any estate expenses.The best way to avoid any issues with accessing the bank accounts of deceased family members is to have a clear and up-to-date estate plan in place. How much is my claim? In your example, the surviving owner. How do I apply in the future? Applications are available at the Cook County Treasurer's Office after January 1 through the March 1 application deadline. We will NEVER give out our bank account information. ×. Notify Bank of America. We'll ask you for the deceased customer's full legal name and Social Security number to identify their accounts.