Example: During the year David moved to Illinois from Missouri. Domicile is intended to be permanent rather than temporary, whereas residence means living in a particular locality and requires mere physical presence.The state is your "domicile," the place you envision as your home and where you intend to return after any absences. 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. 'Domicile' generally refers to where you live – your residence that you intend to keep for the foreseeable future. The purpose of the general definition is to include in the category of individuals who are taxable on their entire net income, regardless of whether derived. An affidavit of domicile is a legal document that certifies the residence of a deceased person.