Florida Millage Rates by County: Layers, Exemptions, and TRIM Notices

Florida millage rates vary by county because each county’s local taxing authorities set their own rates every year, and your final bill is the stacked total of every authority whose boundaries include your property. One mill equals one dollar of tax for every $1,000 of taxable value, so a combined 18-mill rate on a home with $200,000 in taxable value produces a $3,600 annual bill before any early-payment discount. The Florida Department of Revenue publishes county-by-county millage data twice a year for all 67 counties, and that is the authoritative place to look up what your county charges.¹

How a Millage Rate Becomes Dollars

The math is straightforward. Divide your taxable value by 1,000 and multiply by the millage rate. A property with $300,000 in taxable value subject to a combined 18-mill rate owes $300,000 ÷ 1,000 × 18 = $5,400.²

Taxable value is not market value. The county property appraiser first determines just (market) value, then subtracts any assessment caps and exemptions to reach the taxable figure the millage rate is applied to. In Florida that gap can be large, because the Save Our Homes cap and the homestead exemption often push taxable value well below what the property would sell for.

Where To Find the Rate for Your County

The Department of Revenue’s Ad Valorem Valuation and Tax Data Book covers every county twice a year, and the millage and taxes levied report inside it breaks rates down by taxing authority at the county and municipal level.¹ The Department also runs a property tax data portal with downloadable files for county and municipal governments.³

Differences between counties can be substantial. Urban counties with larger infrastructure obligations and heavier emergency-services networks tend to carry higher combined rates than rural counties with fewer service demands. Swings of 10 mills or more between neighboring counties are not unusual, and on a $300,000 taxable value that is a $3,000 difference in annual tax. Comparing the official Department of Revenue tables rather than third-party estimates is the only reliable way to see where a county actually stands.

The Layers That Stack Into Your Combined Rate

Your bill is not one tax from one government. It is a stack of separate levies from every taxing authority whose boundaries include your parcel. Article VII, Section 9 of the Florida Constitution caps each layer individually.

County government: up to 10 mills for general county purposes. A county that also provides municipal-type services in unincorporated areas can levy an additional 10 mills for those services.⁴
Municipality: up to 10 mills for municipal purposes.⁴
School district: up to 10 mills under the constitutional cap. Much of this is a required local effort millage set by the state legislature each year, with room for a discretionary operating levy and voter-approved additions.⁵
Water management districts: statutory caps range from 0.05 mill for the Northwest Florida district to 1.0 mill for the Southwest Florida district.⁶
Independent special districts: fire rescue, library, hospital, and similar districts each set their own rate within the limits approved by voters in their service areas.⁷

Each entity holds its own public hearing before adopting a final rate. A property inside city limits carries both county and municipal millage. An unincorporated parcel skips the municipal layer but may pick up a municipal-services taxing unit levy instead. The combination on your bill depends entirely on where the parcel sits.

Non-Ad Valorem Charges That Millage Comparisons Miss

Your bill also includes charges that are not based on value at all. Florida law defines non-ad valorem assessments as charges that are not calculated from your property’s value but can still become a lien against the home.⁸ Trash collection, stormwater management, street lighting, and fire-rescue fees are common examples. These flat-rate or unit-based charges appear on the same bill as your millage-based taxes and are due on the same schedule, but they are set by the service provider rather than derived from your assessed value. When comparing tax burdens across counties, non-ad valorem assessments can add hundreds or thousands of dollars that will not show up in a simple millage comparison.

Exemptions and Caps That Shrink the Value Rates Apply To

Standard Homestead Exemption

Florida’s homestead exemption shelters up to $50,000 of assessed value if you own and permanently reside on the property as of January 1. The first $25,000 applies to all tax levies including school district taxes. The second $25,000 applies only to assessed value between $50,000 and $75,000 and does not reduce school taxes.⁹ On a home assessed at $200,000, that drops taxable value to $150,000 for non-school levies and $175,000 for the school portion.

Save Our Homes Cap

If your property carries a homestead exemption, the annual increase in assessed value cannot exceed 3% or the change in the Consumer Price Index, whichever is lower.¹⁰ Over a long ownership period, that creates a growing gap between market value and the value your county actually taxes. The benefit belongs to the owner rather than the property: when a homesteaded home sells, the assessed value resets to full market value for the new owner. A buyer looking at last year’s tax figure on a listing should expect a significantly larger bill after closing.

Portability

Florida lets you carry part of the accumulated Save Our Homes benefit to a new homestead, up to a maximum of $500,000 in transferred savings.¹⁰ You must have held a homestead exemption within the three tax years immediately before establishing the new one. If the new home has a higher market value than the old one, the dollar difference between market and assessed value transfers directly. If the new home is worth less, the benefit scales proportionally. File for portability with the county property appraiser when you apply for the new homestead exemption.

Non-Homestead 10% Cap

Rental properties, second homes, and commercial real estate get some protection too. A constitutional amendment limits annual assessed-value increases on non-homestead property to 10%. The cap does not apply to the school-district portion of the bill, which is still calculated on full market value.¹¹

Senior and Disabled Veteran Exemptions

Owners 65 or older whose household income falls below an annually adjusted threshold (starting from a $20,000 base, increased each year for inflation) can qualify for an additional exemption of up to $50,000. If the home’s just value is under $250,000 and the owner has lived there at least 25 years, the entire assessed value may be exempt. This exemption must be authorized by the county or municipality, so availability varies.¹²

A veteran with a service-connected total and permanent disability rating from the U.S. Department of Veterans Affairs is entitled to a complete exemption from property taxes on a homestead. The veteran must be a permanent Florida resident as of January 1 of the tax year, and a VA letter presented to the county property appraiser establishes eligibility.¹³

Reading the TRIM Notice Before Rates Are Final

Every August, county property appraisers mail a Notice of Proposed Property Taxes, commonly called the TRIM notice (Truth in Millage). The mailing deadline falls 55 days after the property appraiser certifies values, typically around August 24 for a July 1 certification.¹⁴ The process is governed by Section 200.065 of the Florida Statutes.¹⁵

The notice is laid out as a comparison: last year’s taxes on the left, proposed taxes on the right, with each taxing authority on its own line. The most revealing figure is the rolled-back rate, which is the millage that would produce the same total revenue as last year after property values change. When an authority proposes a rate above its rolled-back rate, it is proposing a tax increase in real terms even if the millage number itself went down. The notice shows the percentage difference so you can see how much each entity’s proposal exceeds the revenue-neutral rate.

The bottom of the notice lists dates, times, and locations of public budget hearings where each proposed rate will be debated before it becomes final.

Payment Timing and Early-Payment Discounts

Florida property taxes are due November 1 and become delinquent on April 1 of the following year.¹⁶ Between those dates, paying early saves real money on the same underlying bill:¹⁷

November: 4% discount
December: 3% discount
January: 2% discount
February: 1% discount
March: no discount

On a $5,000 bill, paying in November rather than March puts $200 back in your pocket. Missing April 1 flips the sign: delinquent taxes accrue interest at 18% annually, and the county tax collector begins selling tax certificates on unpaid balances.¹⁶

1
Florida Department of Revenue. Florida Ad Valorem Valuation and Tax Data Book
2
Florida Department of Revenue. A Florida Homeowner’s Guide: Millage
3
Florida Department of Revenue. Florida Property Tax Data Portal
4
The Florida Legislature. Florida Code 200 – Determination of Millage
5
The Florida Legislature. Florida Code 1011.71 – District School Tax
6
The Florida Legislature. Florida Code 373.503 – Water Management District Taxes
7
Florida Senate. Florida Constitution – Article VII Section 9
8
The Florida Legislature. Florida Code 197.3632 – Non-Ad Valorem Assessments
9
The Florida Legislature. Florida Code 196.031 – Homestead Exemptions
10
The Florida Legislature. Florida Code 193.155 – Homestead Assessments
11
Pinellas County Property Appraiser. Non-Homestead 10% Cap
12
Florida Senate. Florida Code 196.075 – Additional Homestead Exemption for Persons 65 and Older
13
The Florida Legislature. Florida Code 196.081 – Exemption for Totally and Permanently Disabled Veterans
14
Florida Department of Revenue. TRIM Compliance Workbook – Regular Taxing Authorities
15
Florida Senate. Florida Code 200.065 – Method of Fixing Millage
16
Florida Department of Revenue. Tax Collector Property Tax Calendar
17
Florida Senate. Florida Code 197.162 – Discount for Payment of Taxes Before Delinquency