Cook County Property Taxes
Property taxes in Cook County are proportional to assessed property values. Therefore, a higher assessed property value means a higher tax bill. In an effort to estimate fair market prices, the Assessor re-estimates a property's value once every 3 years (each year 1/3 of Cook County properties are reassessed).
By law, the assessed value of every property in Cook County may be appealed each year even though the Assessor re-values only 1/3 of them.
If a property's assessed value is successfully appealed during a reassessment year, this means that the property owner will save money for 3 straight years.
Townships
Cook County has 38 townships. Property taxes can be appealed only during specific times:
Township | Appeals Opened | Appeals Closed |
---|---|---|
River Forest | 4/21/2021 | 5/21/2021 |
Riverside | 4/22/2021 | 5/22/2021 |
Evanston | 5/7/2021 | 6/7/2021 |
Oak Park | 5/17/2021 | 6/16/2021 |
Norwood Park | 5/17/2021 | 6/16/2021 |
Berwyn | 6/01/2021 | 7/01/2021 |
New Trier | 6/01/2021 | 7/01/2021 |
Cicero | 6/08/2021 | 7/09/2021 |
Rogers Park | 6/11/2021 | 7/13/2021 |
Palatine | 6/14/2021 | 7/16/2021 |
Schaumburg | 6/16/2021 | 7/19/2021 |
Elk Grove | 6/28/2021 | 7/29/2021 |
Calumet | 7/02/2021 | 8/03/2021 |
Orland | 7/02/2021 | 8/03/2021 |
Hanover | 7/14/2021 | 8/16/2021 |
Barrington | 7/14/2021 | 8/16/2021 |
West Chicago | 7/21/2021 | 8/23/2021 |
Bloom | 7/23/2021 | 8/23/2021 |
Maine | 7/23/2021 | 8/23/2021 |
Thornton | 8/09/2021 | 9/09/2021 |
Palos | 8/12/2021 | 9/13/2021 |
Lemont | 8/14/2021 | 9/14/2021 |
Jefferson | 8/16/2021 | 9/16/2021 |
Worth | 8/24/2021 | 9/24/2021 |
Leyden | 8/30/2021 | 9/30/2021 |
Northfield | 9/03/2021 | 10/04/2021 |
Bremen | 9/15/2021 | 10/18/2021 |
North Chicago | 9/17/2021 | 10/19/2021 |
Lyons | 9/21/2021 | 10/25/2021 |
South Chicago | 9/30/2021 | 11/01/2021 |
Wheeling | 10/05/2021 | 11/05/2021 |
Proviso | 10/08/2021 | 11/08/2021 |
Stickney | 10/14/2021 | 11/29/2021 |
Rich | 10/26/2021 | 11/29/2021 |
Niles | 11/01/2021 | 12/03/2021 |
Lake | 11/04/2021 | 12/06/2021 |
Lake View | 11/22/2021 | 12/23/2021 |
Hyde Park | 12/15/2021 | 01/23/2022 |