Your domicile is the state that you intend to make your permanent and primary home. There are significant benefits to establishing a domicile in Florida.A Declaration of Domicile is a legal document that shows an intention to make Florida your permanent and principal home. 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. Your domicile is the only place where the probate courts have jurisdiction to administer your will and settle your estate. These are the forms that Clerk's office provides for Circuit Civil cases. A Declaration of Domicile is a legal document that identifies your principal home in Florida, with tax and asset protection benefits.