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Free check

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All states

Property tax appeals by state and county

A property tax appeal asks a county or state review body to correct the assessed value on your home. Who hears it, the deadline and the forms depend on your state and county. Pick your state to see every county's status, or see the appeal deadlines we track. The free check is available in 118 counties today, and more are coming soon.

The free check finds your county from the address and tells you right away whether it runs there.

States and DC
51
Counties listed
3,144
Free check available in
118 counties
Upcoming appeal deadlinesDownload the deadline data
Last updated
  • Free check open
  • Coming soon
  • Waitlist open
Coverage by state. The same states as a list

Which appeal windows close soon?

All upcoming appeal deadlines

Which states and counties do you cover?

Every state lists all of its counties, each with its appeal offices and Census figures. Where the free check isn't open yet, the county page has a waitlist.

Free check open (8)

  • California58 countiesFree check in 47 countiesNext deadline: Nov 30, 2026
  • Illinois102 countiesFree check in 5 countiesNext deadline: Oct 5, 2026
  • Maryland24 countiesFree check in 24 countiesNext deadline: Expected Dec 31, 2026 – Jan 4, 2027
  • Oregon36 countiesFree check in 36 countiesNext deadline: Dec 31, 2026
  • Pennsylvania67 countiesFree check in 1 countyNext deadline: Oct 5, 2026
  • Rhode Island5 countiesFree check in 3 countiesNext deadline: Expected in November 2026
  • South Carolina46 countiesFree check in 1 countyNext deadline: Expected in January 2027
  • Washington39 countiesFree check in 1 countyNext deadline: Oct 5, 2026

Coming soon (2)

  • New Jersey21 counties · coming soonNext deadline: Expected in January 2027
  • Texas254 counties · coming soonNext deadline: Expected May 17, 2027 – Jun 1, 2027

Waitlist open (41)

What are the usual steps of an appeal?

  1. 1

    Your assessment notice

    It shows the assessed value. Your notice or county calendar gives the filing deadline.
  2. 2

    Local review

    A county or local review body hears the first appeal.
  3. 3

    Further appeal

    If you disagree with the local decision, a state board or court may hear a further appeal.

How to read these pages

What does “coming soon” mean?

We are preparing the free check for that county: its records, rules and deadlines from official sources, each checked by a person before it appears. Join the county's waitlist and we email you once when it opens. How we verify facts

Where do the deadlines come from?

Each date comes from the county's or state's own calendar, notice or rule, with a link to it and the date we last checked it. Forecasts are labelled and never shown as official dates. The same list is open data (CSV).

Do you file the appeal for me?

No. We give you the facts and an evidence packet; you choose, sign and file with your county yourself. We never represent owners or charge a share of savings.

Is your home in a county we cover?

The free check tells you right away, and shows the waitlist if your county isn't open yet.

Check my property

You decide and file yourself.

Where do these facts come from?

  1. 1.ACS 2024 5-year, B25077 Median value (dollars), owner-occupied housing units