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. Your domicile is the location of your permanent home.You or your spouse claims Utah residency on a document (other than a Utah income tax return) filed with or provided to a court or other government entity. "domicile" has a very particular meaning, while "residency" can have a broader application or meaning. An affidavit of domicile is a legal document that verifies the primary place of residency of someone after their death. Domicile refers to the place you call home permanently. Your domicile is important for legal purposes such as paying taxes, voting, and claiming benefits. Before you can turn in your Utah residency form, you must live in Utah for 12 or more continuous months. A key factor for Utah being one of the largest captive domiciles in the United States is the quality and accessibility of its captive regulatory staff.