You or your spouse has a Utah driver's license. The following topics cover Utah residency and domicile.The menu provides additional topics. Utah code defines a primary residence as a home that serves as the occupant's primary domicile for at least 183 consecutive days in a year. Is your mailing address different from your physical address? If so, UAC 59-2-103.5 (8) requires you to fill out a Residential Property Declaration. Your domicile is the location of your permanent home. Use our Affidavit of Residency form to verify your home address for official purposes.