Generally, you must file a New York State resident income tax return if you are a New York State resident and meet any of the following conditions. The Florida domicile checklist originates from the GS private wealth management team.File a Declaration of Domicile in the FL county where moving. • Update estate planning documents to reflect FL law and address. File a Declaration of Florida Domicile in your county official records, indicating you intend to be a Florida resident. Establish homestead. You can but be prepared to justify the change. You should be able to show you intend Florida to be your permanent home. In order to establish a new domicile, you must first abandon your old "domicile", but not necessarily your old "residence.