Sales tax in Martin County, Florida
The sales tax rate in Martin County, Florida is 6.5%. That is a 6% state rate plus a 0.5% county rate, and it is the same at every address in the county. That rate was read from Florida's own published schedule and checked on September 9, 2026.
What is the sales tax rate in Martin County?
| Florida state rate | 6% |
|---|---|
| Martin County rate | 0.5% |
| Combined rate | 6.5% |
How much sales tax is that on a purchase in Martin County?
At 6.5%, a $100 purchase carries $6.50 in sales tax and a $1,000 purchase $65.00. That is general merchandise; Florida taxes some categories, often groceries, differently, as the note below explains.
Among Florida's 67 counties, Martin County's rate ranks 59th highest, level with 6 other counties. See every Florida county.
Sales tax in counties next to Martin County
Martin County borders 5 counties.
| County | Combined sales tax |
|---|---|
| Hendry County, FL | 7.5% |
| Glades County, FL | 7% |
| Okeechobee County, FL | 7% |
| St. Lucie County, FL | 7% |
| Palm Beach County, FL | 6.5% |
| Martin County, FL (this county) | 6.5% |
Why the rate here is not the whole story
Florida's state rate is 6 percent and Martin County levies a discretionary sales surtax of 0.5 percent, which applies countywide because Florida cities and special districts cannot levy a general sales tax of their own. The surtax is charged only on the first $5,000 of a single item of tangible personal property, so the county portion stops accruing above that amount while the 6 percent state tax applies to the full price. The rate dropped for 2026 because the county's 0.5 percent school capital outlay surtax expired on December 31, 2025, leaving only the 0.5 percent local government infrastructure surtax that runs to the end of 2034.
How do I find the exact rate for an address in Martin County?
Use Florida's own address lookup.
Who has to collect sales tax in Martin County?
Any seller with a physical presence in Florida collects at the rate for the address of the sale; a remote seller does once it passes Florida's economic nexus threshold. Florida sales tax covers the statewide rules and what is exempt.
Work out your own numbers
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Sales tax calculator
Tax on a specific purchase at this county's rate, and the total you will actually pay.
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Do you have to collect?
Whether your sales into Florida cross its economic nexus threshold. A different question from the rate.
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Property tax in Martin County
The other local tax: effective rate and median bill for this county.
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Sales tax by county
Every US county, and how Florida compares with the rest of the country.
Sources
- Martin County rates: Florida Department of Revenue, Form DR-15DSS, Discretionary Sales Surtax Information for Calendar Year 2026 (R. 11/25), https://floridarevenue.com/Forms_library/current/dr15dss_26.pdf
- Collected and verified September 9, 2026. Confidence: P on the rate components, P on the range (P read on a primary agency page, S strong but indirect, U unverified).