This means the county where the Decedent lived and considered their primary home address before they died. An affidavit of domicile is a sworn statement signed before a notary public establishing the legal domicile of someone who has died.Domicile refers to the place you call home permanently. Your domicile is important for legal purposes such as paying taxes, voting, and claiming benefits. Domicile or legal home is defined as consisting of three elements: (1) actual physical presence (2) at a fixed dwelling. 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. The domicile is an individual's legal home, or permanent residence. An individual can have several residences, but only one domicile. The following list contains some of the factors courts have considered as indicative of an intent to establish domicile in a new state.