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.Purpose: To request domicile verification from a nonrelative who is familiar with the household's situation. Domicile refers to the place you call home permanently. Your domicile is important for legal purposes such as paying taxes, voting, and claiming benefits. An affidavit of domicile is a sworn statement signed before a notary public establishing the legal domicile of someone who has died. Domicile is intended to be permanent rather than temporary, whereas residence means living in a particular locality and requires mere physical presence. You will also show proof of domicile in the United States. Domicile means your country of residence. In fact, its meaning can be tricky.