Country of domicile is the country where you make your permanent home. Residency refers to where you currently live, while domicile refers to the place you intend to return to after a temporary absence.If you use Form 540NR, figure your taxable income as if you were a California resident for the entire year. When evaluating the residency requirement for a divorce in California, the key word is "domicile. Domicile refers to the place you call home permanently. Your domicile is important for legal purposes such as paying taxes, voting, and claiming benefits. On Form I864, petitioners must prove that they have the ability to financially support the visa applicant(s) if necessary. While residence refers to where you currently live, domicile is your fixed, permanent home where you intend to remain long-term. An affidavit of domicile is a legal document that verifies the primary place of residency of someone after their death. A domicile is a person's true and permanent home, the place where he intends to remain, and to which he plans on returning if he leaves.