Florida car-buying guide
How Florida County Surtax Works When Buying a Car
Florida county surtax on a car purchase follows the purchaser's residence county and generally applies only to the first $5,000. See the rule and a worked example.
Published and verified October 2, 2026
Florida county surtax on a car purchase is separate from the 6% state vehicle tax. The applicable county rate follows the purchaser's residence address, and the county portion generally applies only to the first $5,000 of the taxable vehicle amount.
State tax and county discretionary sales surtax are separate
Florida's 6% state tax applies to the full taxable vehicle amount. A county may also impose a discretionary sales surtax, but that county calculation has its own rate and limitation.
| Component | Rate base |
|---|---|
| Florida state motor vehicle tax | 6% of the full taxable amount |
| County discretionary sales surtax | Purchaser county rate on up to the first $5,000 |
Which county rate applies to a Florida car purchase?
The purchaser's residence address shown for title and registration determines the county rate for a motor vehicle. The dealership's address is not the deciding location.
This matters when a buyer lives in one county and purchases from a dealer in another. The calculator asks for purchaser county instead of guessing from dealer location or ZIP code.
How Florida’s $5,000 surtax cap works
Apply the county rate to the taxable amount only up to $5,000. If the taxable amount is $3,000, the county rate applies to $3,000. If it is $20,000, the county rate applies to $5,000.
County surtax = county rate × the smaller of the taxable amount or $5,000
The state's 6% tax does not stop at $5,000. That limit applies to the county discretionary sales surtax.
Florida county surtax worked example
This example uses Miami-Dade County's verified 2026 rate and the same engine as the Florida car tax calculator.
Florida counties can have different or zero surtax rates
The official 2026 table includes different rates across Florida and counties with a 0% rate. A zero-rate county produces no county surtax, but the 6% state vehicle tax still applies.
Use the current county table
County rates can change by calendar year, so an older list may produce the wrong result. CarBuyerKit's Florida dataset follows the Department of Revenue's 2026 DR-15DSS table and records its verification date.
Use the Florida vehicle sales tax calculator to select any Florida county. For the broader tax base and trade-in rules, read the Florida car sales tax guide.
Get your estimate
Calculate Florida Vehicle Sales Tax
Select the purchaser's county and enter the transaction amounts to calculate state tax and county surtax separately.
Official Florida sources
Rules and amounts in this guide were checked against these primary government sources.