The Dual-State Problem
Sarasota's large seasonal population includes thousands of snowbirds who maintain homes in both Florida and income-tax states like New York, Connecticut, New Jersey, and Illinois. These states aggressively audit residents who claim to have moved to Florida, looking for evidence that the move was not genuine.
Establishing Florida Domicile
To successfully claim Florida residency, you should obtain a Florida driver's license, register to vote in Sarasota County, file a Declaration of Domicile with the Sarasota County Clerk, use your Sarasota address on federal tax returns, move bank and investment accounts to Florida institutions, and spend more than 183 days per year in Florida.
Common Mistakes
Keeping a home in the former state, maintaining professional licenses or business interests there, keeping bank accounts and investment accounts at northern institutions, and continuing to vote in the former state. Any of these can be used as evidence that the move was not genuine, resulting in back taxes, penalties, and interest in the former state.
Florida residency saves you state income tax, but only if you establish it properly. Half-measures invite audits from your former state.