The first step in using an ACH authorization form is to request this form from your bank or financial institution. A bank letter is an official document from your bank that provides important information about your business' official bank account.The bank letter must include ABA number (routing or transit number), bank account number, and type of account (checking or savings). This blog covers essential ACH authorization form requirements, including how to complete them correctly for smooth payment processes. We will cover how to properly fill out an ACH form and how to submit the additional information required. Taxpayers who have created a Revenue Online account can access a history of prior payments through their account, regardless of the payment type. How to close a credit card account. All offices will be closed Monday, Jan. After that, the Monthly Service Fee will apply unless you meet one of the ways to avoid the Monthly Service Fee each statement period (if applicable).