Property Tax Appeal Deadlines by State (2027)

The 2027 early-season anchors

A few deadlines shape the whole national calendar. If you live in one of these states, your window is the first thing to put on the calendar:

The 50-state deadline table

Verified rows were checked against county, state, or practitioner sources in October 2026. Rows marked Confirm with your county have locally varying deadlines — we list where to start rather than risk a wrong date.

How to use this table: find your state, note whether the deadline is a fixed date or triggered by your notice, then confirm the exact date with your county assessor's or appraisal district's office — especially for rows marked "confirm." We re-audit every row each January; if you spot a change, tell us at contact@theappealplaybook.com.

Appeal deadline vs. tax payment deadline: don't confuse them

This is one of the most common mix-ups we see, and it's an expensive one. The appeal deadline is the last day you can challenge your assessed value — in many states that's spring (Texas: May; New Jersey: April; Ohio: March). The payment deadline is the last day you can pay your tax bill without penalties — often many months later (Texas: January 31 of the following year; most states: late in the calendar year or early the next).

Two rules that follow from the distinction:

Missed your deadline? Here's what to do

First, the bad news, plainly: in most states, a missed deadline means you've lost the appeal for that tax year. There is no grace period, and "I didn't know" doesn't reopen the window. Now the useful part — what you can still do:

1. Check whether your state has a narrow late-filing exception. A few do. Texas allows late protests for "good cause" (things like a medical emergency or military deployment) filed before the appraisal roll is certified, typically in late July — but the appraisal review board decides what counts, and you should never plan around it. Florida accepts late Value Adjustment Board petitions only with a showing of good cause, and practitioners describe the bar as high. If you think you qualify, call your county office today — these windows close fast.

2. Check whether you even got proper notice. If the county never mailed a required notice to the right address, some states give you an extended filing window — in Texas, for example, you can file until the day before taxes become delinquent if a required notice was never sent. This is fact-specific; bring your evidence to the county office and ask.

3. Start next year's appeal now. This is the move most people skip, and it's the highest-value one. Audit your property record for errors, pull comparable sales while the data is fresh, photograph condition issues, and put next year's deadline on your calendar today. Twelve months of preparation beats twelve days of panic — and our complete appeal guide walks you through every step.

Why we re-audit this table every January

Deadlines shift. Counties change their mailing schedules, states tweak their statutes, and a date that was right last spring can be wrong this one. Stale deadline tables are worse than no table at all — they create false confidence. So every January, before appeal season starts anywhere, we re-verify every row of this table against county and state sources and update the "last verified" stamp at the top of this page. If a date on this page ever disagrees with your assessment notice, the notice wins — and we'd appreciate you telling us about it.

Frequently asked questions

Keep going

Knowing your deadline is step one. Here's what to do with the time you've got: