A resident is a person who is domiciled in Utah for any period during the tax year, but only for the duration of that period. You maintain a place of abode (i.e., the place where you usually live) in Utah and spent 183 or more days of the tax year in Utah. Your domicile is the location of your permanent home. An affidavit of domicile is a legal document that verifies the primary place of residency of someone after their death. Although these terms are often used synonymously,. Before you can turn in your Utah residency form, you must live in Utah for 12 or more continuous months. Domicile refers to the place you call home permanently. Your domicile is important for legal purposes such as paying taxes, voting, and claiming benefits. Basically the terms "domicile" and "legal residence" refer to the same place – the state you consider your permanent home.