How to write a bank account termination letter? "Dear Banker, I'm writing to request the closure of the following accounts at your bank.It can be as simple as "we are closing your account as of X date. In this blog post, we'll discuss what this means for your loved ones and how to ensure that your bank accounts are properly taken care of after your death. This letter is to inform you I am closing my accounts at your bank. Making changes and closing accounts. Learn More About Section 153.003 Of The Texas Estates Code And Obtaining Bank Account Information Of A Deceased Family Member In Texas. This set provides coverage of every aspect of probate law and estate and trust administration in Texas. It includes sample forms and letters. To close a bank account, you might be required to mail your request in a traditional letter or submit it in person at a bank branch.