Free · No account required · 1.48M Cook County parcels
Are you overpaying
your property tax?
Enter your Cook County address and see how your assessment compares to your neighbors — in seconds.
48%
of Cook County residential properties are over-assessed
$280
average estimated annual overpayment
Free
to appeal — no attorney or filing fee required
How it works
Search your address
Type your Cook County address to find your parcel in our database of 1.48 million residential properties.
See your assessment gap
We compare your assessed value to your neighborhood median and calculate how much you may be overpaying.
Appeal for free
If over-assessed, you can file a free appeal with the Cook County Assessor — no attorney or filing fee required.