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. How Do Bank Closure Letters Work? Please accept this letter as my written authorization to close the following account(s) at your financial institution. Edit, sign, and share sample letter to close trust account online. No need to install software, just go to DocHub, and sign up instantly and for free. An estate closing letter to beneficiaries is a crucial document in the process of settling an estate after someone has passed away. This form can be submitted online. This manual is intended to assist persons who are involved in the administration of a decedent's estate in Virginia.