Florida millage rate calculator

The answer up front: a mill is one dollar of tax per $1,000 of taxable value — so $250,000 of taxable value at 15 mills is $3,750 a year, and converting mills to percent is just dividing by ten (15 mills = 1.5 percent). Convert either direction below, with every Florida county's 2025 average built in.

Where millage comes from

Your parcel's rate is the SUM of every taxing authority covering it — county commission, school board, city, water management, special districts — each adopted at the September hearings printed on the TRIM notice (and since SB 4-F, raising millage above revenue-neutral takes a supermajority). The county figures in the dropdown are taxable-value-weighted countywide averages from the Florida DOR's certified-roll report — planning numbers, not your parcel's exact districts. All 67 are ranked on the county rankings page, and the lookup estimates a specific address.

Millage data: Florida DOR "Millage and Taxes Levied Report," 2025 certified roll. Informational only — not tax advice.

Quick answers

What is a millage rate?

One mill is one dollar of tax per $1,000 of taxable value. A home with $250,000 of taxable value at 15 mills owes $3,750 a year. Florida tax rates are always set and published in mills.

How do I convert a millage rate to a percentage?

Divide by 10: 15 mills is 1.5 percent of taxable value. Going the other way, multiply a percent by 10 to get mills.

What is a typical Florida millage rate?

On the 2025 certified roll, countywide average total millage runs from about 8.2 mills (Monroe) to 21.6 mills (St. Lucie) — our county rankings page lists all 67. Your parcel's actual rate depends on its exact taxing districts.

Why is my bill higher than taxable value times millage?

Non-ad-valorem assessments — fire, solid waste, CDD charges — ride on the same bill but aren't millage-based, so no millage math captures them. The lookup tool shows the county's actual bill links for a specific address.