"Domicile" will mean a person's true, fixed and permanent home, to which a person intends to return. Thank you for your interest in applying at Allegheny County.The following information will assist you through the application process. Domicile is the place where an individual intends to return whenever absent. Domicile is a matter of intent and fact. A Certificate of Residence(PDF, 13KB) form is required as part of recording all deeds transferring property ownership. Domicile refers to the place you call home permanently. Your domicile is important for legal purposes such as paying taxes, voting, and claiming benefits. The Taxpayer Relief Act provides for property tax reduction allocations to be distributed to school districts through a "homestead or farmstead exclusion." Although the term domicile is not defined in the Probate Estates and.