How do I appeal property taxes in Duval County?

The Duval County process, step by step

1. 1Get your TRIM notice from the Duval County Property Appraiser, mailed in August (approximately Aug 14, 2026 for 2026), showing assessed value, exemptions, and proposed millage.
2. 2File your Form DR-486 petition with the Duval County Value Adjustment Board within 25 days of the mailing date (jacksonville.gov). The residential fee is $15, and the 2026 deadline lands around Sept 8, 2026.
3. 3Pull comparables from the Duval PA site (coj.net): similar homes assessed lower than yours, or that sold for less than your assessed value. Three to seven same-area comparables adjusted for size and condition is the standard winning package.
4. 4Present to a special magistrate, a short, informal hearing. The magistrate recommends a value and the board ratifies. Homeowners routinely appear without attorneys.
5. 5Verify your exemptions: the homestead exemption (up to $50,000 off assessed value) and the 3% Save Our Homes cap. If you bought recently, the cap reset at purchase and your first assessments deserve real scrutiny.

The Jacksonville angle

Duval's consolidated city-county government means Jacksonville addresses from the Beaches to the Westside all appeal through the same Duval VAB, and the sheer geographic spread makes mass appraisal noisy: growth corridors get repriced aggressively while older neighborhoods lag, and homes near the boundary of a hot submarket often inherit its comparables. Recent buyers and investors (Jacksonville has one of Florida's most active rental markets, 10% cap only) are the strongest cases.

The statewide walkthrough covers the petition and hearing; the free check compares your assessment against similar Duval homes from the state roll, every Jacksonville parcel included.