This means the county where the Decedent lived and considered their primary home address before they 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. 1. a dwelling place : place of residence : home 2. Law a : a person's fixed, permanent, and principal home for legal purposes An affidavit of domicile is a sworn statement signed before a notary public establishing the legal domicile of someone who has died. Applying IN PERSON and By MAIL Applications mailed need to be completely filled out and the student's signature MUST BE NOTARIZED. A homestead exemption is a legal provision that helps to reduce the amount of property taxes on owner-occupied homes. The home must be your primary residence. It means your permanent home, i.c.