Domicile is determined as of the first day of the session in which a student is attending that semester. Please note: Students also may be required to complete a Residency Affidavit.Domicile refers to the place you call home permanently. Your domicile is important for legal purposes such as paying taxes, voting, and claiming benefits. This form must be submitted in person or via the MyPima Student Portal if you are a resident of Pima County. Property classification: The act or process of putting property into Arizona's nine statutorily-defined classes (e.g. Probate Court Forms, Probate Accountant, Probate Rules of Practice, Procedures and Instructions, Terms and Definitions, FAQ, Probate terms and definitions. Your domicile is the state of your permanent home, or the state you consider your home whenever you are elsewhere. Your domicile is an important place.