Reference · Updated Continuously
Property tax appeal deadlines by county (2026)
Verified from official county sources and updated as counties post new cycles. 4 counties currently have verified open or upcoming windows. Miss the deadline and there's no do-over until next year — check any address free at grovehopper.com.
| County | State | Appeal deadline | Time left | How to file |
|---|---|---|---|---|
| Collin County | Texas | 2026-05-15 | — | Guide → |
| Denton County | Texas | 2026-05-15 | — | Guide → |
| Fort Bend County | Texas | 2026-05-15 | — | Guide → |
| Travis County | Texas | 2026-05-15 | — | Guide → |
| Bexar County | Texas | 2026-07-20 | 8 days | Guide → |
| Duval County | Florida | 2026-09-08 | 58 days | Guide → |
| Pinellas County | Florida | 2026-09-11 | 61 days | Guide → |
| Santa Clara County | California | 2026-09-15 | 65 days | Guide → |
| Maricopa County | Arizona | see guide | — | Guide → |
| Los Angeles County | California | see guide | — | Guide → |
| Orange County | California | see guide | — | Guide → |
| Riverside County | California | see guide | — | Guide → |
| San Bernardino County | California | see guide | — | Guide → |
| San Diego County | California | see guide | — | Guide → |
| Broward County | Florida | see guide | — | Guide → |
| Hillsborough County | Florida | see guide | — | Guide → |
| Lee County | Florida | see guide | — | Guide → |
| Miami-Dade County | Florida | see guide | — | Guide → |
| Orange County | Florida | see guide | — | Guide → |
| Palm Beach County | Florida | see guide | — | Guide → |
| Sarasota County | Florida | see guide | — | Guide → |
| Cook County | Illinois | see guide | — | Guide → |
| Clark County | Nevada | see guide | — | Guide → |
| Kings County | New York | see guide | — | Guide → |
| Queens County | New York | see guide | — | Guide → |
| Allegheny County | Pennsylvania | see guide | — | Guide → |
| Bucks County | Pennsylvania | see guide | — | Guide → |
| Chester County | Pennsylvania | see guide | — | Guide → |
| Delaware County | Pennsylvania | see guide | — | Guide → |
| Montgomery County | Pennsylvania | see guide | — | Guide → |
| Philadelphia County | Pennsylvania | see guide | — | Guide → |
| Dallas County | Texas | see guide | — | Guide → |
| Harris County | Texas | see guide | — | Guide → |
| Tarrant County | Texas | see guide | — | Guide → |
| King County | Washington | see guide | — | Guide → |
Sourced from official county assessor and appeal-board publications; each county guide links its sources. Deadlines can change — always confirm with the county before relying on a date. Journalists and bloggers: you're welcome to cite this table with a link. New counties are added daily.