Provide the ACH company ID and name, from the chart below, to your bank for the type of tax payment you need to make. Make EFT payments using a Fed Wire, ACH Debit or ACH Credit from your bank account.There are three primary ways to fill out an ACH authorization form: paper, phone, or online. I (we) agree that ACH transactions I (we) authorize comply with all applicable law. Use these instructions to complete the ACH Enrollment Form to receive Supplier reimbursements via direct deposit. The first step in using an ACH authorization form is to request this form from your bank or financial institution. • Complete the information below. ACH Written Statement of Unauthorized Debit Complete this form if you are disputing an ACH transaction (external withdrawal). An Authorization Letter on bank letterhead from your bank. Bank letterhead; Account number; Routing number; Business name.