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Questions Shoppers Ask
What is the sales tax calculated on, the price I paid or book value?
It's calculated on the actual price written on the title's transfer section, not on book value, which rewards a good negotiation. The exception: under Rule 12A-1.007, if your declared price is under 80% of the average loan (book) value for that year/make/model, the tax collector can tax you on that average loan value instead. You can override that by both parties signing Form DR-99A, the Affidavit for Occasional or Isolated Sale of a Motor Vehicle, explaining a legitimately low price (salvage, flood, heavy damage, family sale).
Where and when do I pay the sales tax on a private car sale?
You pay at your local county tax collector's office or an authorized license plate agency, at the moment you transfer the title and apply for registration. There's no separate sales-tax office and no mailing it in. The clerk calculates the tax from the price on the title, collects it along with the title fee (about $75.25 electronic, $77.75 paper), and then issues your new title and plate. You must apply within 30 days of buying the car.
What happens if I don't transfer the title within 30 days in Florida?
Florida adds a $20 late transfer penalty if you apply more than 30 days after the purchase date (the date the seller signed the title over). The clock starts the day you buy, not when you visit the office. Beyond the fee, driving an untitled car creates insurance and liability problems, and toll or camera tickets may still chase the prior owner. Filing on time is the easiest fee in the process to avoid entirely.