To start a request for a penalty abatement, taxpayers will fill out Arizona Form 290, print and see how to file the request below. The IRS asks that you send a letter, on company letterhead (if available) providing the name and Social Security Number of the owner(s) of the LLC.Use Form 8822-B to notify the Internal. Each state has unique guidelines for when and how you can cancel your sales tax permit. Our state-by-state guide will streamline the process for you. 1. How do I form a corporation? 2. How do I form a nonprofit corporation? Register your business online with MassTaxConnect to file and pay taxes to the Massachusetts Department of Revenue (DOR). Completing Your Forms. You must file the most recent version of Form I-821D from our website.