Duval County property taxes
Duval County is consolidated with the City of Jacksonville, so a single government levies what a county commission and a city council levy separately elsewhere — one reason its millage structure looks simpler than other large Florida counties. The Property Appraiser's parcel pages are directly linkable by RE number.
The 2025 numbers
Duval County's average total millage on the 2025 certified roll is 17.891 mills — about $17.89 for every $1,000 of taxable value — the 9th-highest countywide average of Florida's 67 counties. It splits like this:
| Levy group | Mills | What it funds |
|---|---|---|
| School district | 6.34 | School board operating and debt levies — the portion the additional homestead exemption does not reduce |
| Non-school | 11.551 | County commission, municipal, water management, independent and special districts |
| Average total | 17.891 | Taxable-value-weighted countywide average, Florida DOR "Millage and Taxes Levied Report," 2025 roll |
This is a countywide average — a planning number, not your bill. Actual millage depends on the taxing districts covering the parcel (city, MSTU, special districts), and real bills add non-ad-valorem assessments (fire, solid waste, CDD) that no millage math captures.
What that means in dollars
Engine-computed examples at Duval County's average millage, using the school/non-school split above:
| Scenario | Estimated annual tax |
|---|---|
| $300,000 assessed value, homestead (both exemptions) | ≈ $4,614.95 |
| $500,000 assessed value, homestead (both exemptions) | ≈ $8,193.15 |
| $300,000 assessed value, no homestead (investment or second home) | ≈ $5,367.30 |
The homestead rows apply the first $25,000 exemption (§196.031(1)(a), all levies) and the additional exemption up to $26,411 (§196.031(1)(b), non-school levies only, 2026 CPI-indexed) — nothing else. Widow/widower, disability, veteran, senior and other programs stack on top: the buyer estimator models all eleven.
Buying in Duval County? The listing's bill is not your bill
Florida assessed values reset to market at sale (§193.155) — the seller's Save Our Homes cap dies at closing, and your first full bill is computed from what you paid, not what they paid. Non-homestead property carries its own 10 percent assessment cap (§193.1554), which also does not transfer. Run the buyer estimator with Duval County pre-selected, and if you're moving a Florida homestead, the portability calculator computes what you can carry with you.
At closing, local custom in Duval County puts the owner's title-insurance premium on the seller's side (custom, not law — the contract controls). The title calculator and seller net sheet both carry the county custom.
Look up an actual Duval County record
The property-tax lookup resolves any Duval County address to its parcel — values, homestead status, last sale, an estimated annual tax at the county average — plus the county's official links for the certified record and the current bill:
- Property Appraiser: www.coj.net/Departments/Property-Appraiser.aspx
- Tax Collector: www.coj.net/tc
Estimates on this page are planning figures from official DOR millage data — never a bill, never tax advice. The county's TRIM notice and tax bill control.