You or your spouse has a Utah driver's license. You must file a Utah TC-40 return if you: 1.Are a Utah resident or part-year resident who must file a federal return,. 2. Your domicile is the location of your permanent home. Use our Affidavit of Residency form to verify your home address for official purposes. Some types of evidence you can share to show you intend to establish domicile include: Opening a bank account. Transferring money to a United States account. Proof of physical presence in Utah for the most recent 12 continuous months. This guide will walk you through the key steps to sever ties with Utah, establish a new domicile, and manage any ongoing obligations like Utahsourced income. If you own a vehicle, you must show a current Utah vehicle registration when you file your Utah residency application.