In this article, we walk you through all the steps to writing and formatting the letter, including a sample and a template. This article will give you the reasons why you should close your bank account.Sample account closing letters are also given for your better understanding. The options to terminate or modify an Irrevocable Trust include a Private Settlement Agreement, NonStatutory Agreements, Judicial Reformation, and Decanting. Please be advised that I have recently changed banks and would like you to close the following accounts held at your institution. Your bank may have an account closing letter template or form that you can download from its website or pick up at a branch. I KNOW THERE IS A 30 DAY NOTICE AND OTHER LEGAL VERBIAGE. Want to close a bank account? You might need to submit a written request. Click on the link(s) for the forms you'd like to download.