Cook County Property Tax Appeal Deadlines & Due Dates 2019

Cook County Property Tax Assessment Calculator | KensingtonBelow is a 2019 listing of deadlines for appealing your property taxes in your township for both the Cook County Assessor and Board of Review.

  • Dates in green have been announced: the window to appeal is now open
  • Dates in red have passed: the window to appeal has closed
  • Dates in gray are estimated based on previous years

The earliest you can submit a property tax appeal is the date listed as “Open for Filing” and no property tax appeal will be accepted after the “Closed for Filing” deadline.

Learn why appealing by yourself can cost you more money than using Kensington

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Cook County Township
Cook County Assessor
Open for Filing
Cook County Assessor
Closed for Filing
Cook County Board of Review
Open for Filing
Cook County Board of Review
Closed for Filing
Barrington*
June 4
July 5
Early September
Early October
Berwyn
February 26
March 27
Early August
Late August
Bloom
Early September
Early October
Early December
Early January
Bremen
June 4
July 5
Late August
Mid-September
Calumet
June 14
July 15
Early September
Early October
Cicero
April 12
May 13
Early August
Late August
Elk Grove*
April 18
May 29
Early August
Late August
Evanston*
March 15
April 15
Early August
Late August
Hanover*
Late September
Late October
Late November
Late December
Hyde Park
Mid-June
Mid-July
Mid-October
Mid-November
Jefferson
Mid-July
Mid-August
Early November
Early December
Lake
Late July
Late August
Late November
Late December
Lake View
April 29
May 30
Mid-October
Mid-November
Lemont
June 12
July 15
Early September
Early October
Leyden*
Mid-June
Mid-July
Mid-October
Mid-November
Lyons
May 20
June 21
Early September
Early October
Maine*
May 7
June 7
Early August
Late August
New Trier*
March 29
April 29
Early August
Late August
Niles*
Early September
Early October
Late November
Late December
North Chicago
Early September
Early October
Early December
Early January
Northfield*
May 24
June 24
Early September
Early October
Norwood Park*
February 22
March 25
Early August
Late August
Oak Park
March 19
April 19
Early August
Late August
Orland
Mid-July
Mid-August
Early November
Early December
Palatine*
Late July
Late August
Late November
Late December
Palos
April 5
May 6
Early August
Late August
Proviso
Mid-July
Mid-August
Early November
Early December
Rich
Early September
Early October
Late November
Late December
River Forest
February 6
March 8
Early August
Late August
Riverside
February 5
March 7
Early August
Late August
Rogers Park
February 15
March 18
Mid-August
Mid-September
Schaumburg*
Mid-August
Mid-September
Late November
Late December
South Chicago
Mid-September
Mid-October
Early December
Early January
Stickney
May 28
June 28
Early September
Early October
Thornton
Early August
Early September
Late November
Late December
West Chicago
Late August
Late September
Early December
Early January
Wheeling*
Early July
Early August
Early November
Early December
Worth
Late June
Late July
Mid-October
Mid-November

* North suburbs will be fully re-assessed in 2019 as part of the triennial schedule

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2018 Cook County Property Tax Appeal Deadlines & Due Dates