You can present these letters to the bank along with the death certificate to close the account. This brochure will be useful to you in answering general questions on how to proceed with the administration of an estate.My mother passed away. What do I do to close out bank account. Closing a bank account when someone passes away isn't difficult, as long as you have the right paperwork for the the teller or banker. A power of attorney is a document that gives someone legal authority to act for another person. This page provides some standard legal forms to help you prepare for death, incapacity, or unavailability. A sample form of Waiver of Account is included in this website. 2. Gather required documents. Maryland law provides for an automatic exemption in the amount of 500 dollars.