TaxAppealHub

Is Your Property Over-Assessed?

Enter your zip code and assessed value to see if you may be paying more property tax than you should, and what a successful appeal could save you.
Free to check. No account needed.
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How an appeal works

  1. Step 1

    Check your assessment

    Compare your assessed value with the current market value for your zip code. A gap between them is the starting point for an appeal.

  2. Step 2

    Gather your evidence

    Recent sales of similar homes nearby are the strongest evidence. Photos and repair estimates help if your home has problems the assessor missed.

  3. Step 3

    File by the deadline

    Deadlines are strict and differ by county, and missing yours can mean waiting a full year.

    See the deadlines by county

Property tax appeal guides by state

Deadlines, terminology and the appeal process differ from state to state, and often from county to county. Pick your state to see how appeals work there and which counties we cover.

ArizonaCaliforniaFloridaIllinoisMarylandNew YorkTexasVirginiaWashington

Is it worth it to appeal your property taxes?

If your assessed value is meaningfully higher than your home's real current market value, yes, and it costs nothing to check. Home values rose sharply in many markets after 2020 and have since cooled in some of them, which means an assessment set near the peak can now be well above what the home would actually sell for today. When that's the case, an appeal (or "protest," in Texas) can lower your tax bill every year the correction holds, not just once.

How our estimate works

We compare your assessed value to Zillow's Home Value Index (ZHVI) for your zip code, a free, published, zip-level estimate of current and historical median home values. If your assessed value sits well above that estimate, we flag your property as potentially over-assessed and estimate the annual savings using your county's published tax rate. This is a starting estimate, not a guarantee. The strongest evidence in an actual appeal is real comparable sales for your specific property, not an index.

Assessed value compared with market value Two bars. The assessed value bar is taller than the market value bar. The part of the assessed value bar that rises above the market value is the gap an appeal may remove. The gapAssessed valueMarket value
An illustration, not your numbers.

What happens after you check

If your estimated savings are substantial, we'll point you toward a professional service that works on contingency (you pay only if they win). If the case is smaller, we'll show you a one-time flat-fee alternative and a free DIY guide alongside it, honestly. A contingency specialist recurs every year at 25-30% of your savings, which is a worse deal than a one-time fee once the dollar amount involved is small. We show whichever option is actually best for your numbers, not whichever pays us the most.