In this article, we walk you through all the steps to writing and formatting the letter, including a sample and a template. Want to close a bank account?You might need to submit a written request. Here is a format letter for closing the bank account. Make sure you understand the entire format before writing a letter for closing a bank account. 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. Your bank may have an account closing letter template or form that you can download from its website or pick up at a branch. You can use WalletHub's free template below to send closing instructions to your bank and to request a check for your remaining balance, if any. 1. Simple application to bank manager for closing the account.