What does Pennsylvania domicile mean? Domicile is the place where one intends to reside either permanently or indefinitely, and does in fact so reside.Your domicile is your fixed and permanent home to which you always have the intention of returning whenever absent, even though you may live elsewhere. An individual who maintains a permanent place of abode in this Commonwealth is taxable as a resident even though he may be domiciled elsewhere. Domicile certificates are statelevel residency certificates. What is my domicile when working out of the country? DOMICILE - the place where a person lives and has a permanent home and to which the person has the intention of returning whenever absent. An Affidavit of Domicile is a legal document that serves as a sworn statement used to establish the residence or domicile of a deceased person.