Florida has no state income tax, which makes property tax one of the primary ways local governments fund schools, roads and emergency services. Knowing your estimated bill upfront helps you budget mortgage escrow correctly and compare the true cost of homes across counties.
How the calculation works
The calculator uses the effective property-tax rate model:
Annual tax = assessed value × (effective rate ÷ 100)
The effective rate is the ratio of actual taxes paid to the property’s assessed value, expressed as a percentage. It already incorporates the blend of county, municipal, school-board and special-district millage rates levied on a typical residential property. Florida’s statewide average effective rate is 0.89% — one of the lower figures in the US, well below the national average of around 1.10%.
The monthly figure is simply the annual tax divided by 12, which is what your mortgage servicer typically collects as part of your escrow payment each month.
Worked example
Suppose you buy a home in Orange County (Orlando) for $425,000. Orange County’s indicative effective rate is approximately 1.00%.
- Annual property tax: $425,000 × 0.0100 = $4,250
- Monthly escrow component: $4,250 ÷ 12 = $354.17
Now compare with St. Johns County (St. Augustine), effective rate ≈ 0.75%:
- Annual property tax: $425,000 × 0.0075 = $3,187.50
- Monthly escrow component: $3,187.50 ÷ 12 = $265.63
The same-priced home costs about $89/month more in Orange County than in St. Johns County solely due to the difference in property-tax rates — a meaningful gap when budgeting long-term.
| Home value | Eff. rate | County example | Annual tax | Monthly |
|---|---|---|---|---|
| $300,000 | 0.75% | St. Johns | $2,250 | $187.50 |
| $300,000 | 0.89% | FL average | $2,670 | $222.50 |
| $300,000 | 1.09% | Duval | $3,270 | $272.50 |
| $500,000 | 0.89% | FL average | $4,450 | $370.83 |
| $750,000 | 0.89% | FL average | $6,675 | $556.25 |
County rates vary — here is why
Florida’s property-tax rate is set locally, not by the state. Each county combines levies from the county commission, school board, municipalities and special districts (fire, water, community development). The result is a total millage rate that ranges from under 10 mills in low-tax counties to over 20 mills in high-tax ones. One mill = $1 per $1,000 of taxable value, so 10 mills = 1.0% effective rate.
Use the county reference table in the calculator to switch between counties and see how the annual and monthly figures change for your home value. Always verify the exact current millage with your county property appraiser before finalising a purchase budget.
Every calculation runs entirely in your browser — no figures are uploaded or stored.