I do not plan to use the account, therefore, I would like the credit line to be closed out. In this article, we walk you through all the steps to writing and formatting the letter, including a sample and a template.How to use the template: 1. In the sample letter, fill in your personal information. It can be as simple as "we are closing your account as of X date. To whom it may concern: Please accept this letter as my written authorization to close the following account(s) at your financial institution. This article will discuss some common sample letters that you can use when communicating with your tenants. We'll also provide templates for each letter. Your bank may have an account closing letter template or form that you can download from its website or pick up at a branch. This letter is to inform you I am closing my accounts at your bank.