Cook County Property Tax Appeal Deadlines & Due Dates 2023
Below is a 2023 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
Get Your Free Property Tax Reduction Estimate
Cook County Township
Cook County Assessor
Open for Filing
Open for Filing
Cook County Assessor
Closed for Filing
Closed for Filing
Cook County Board of Review
Open for Filing
Open for Filing
Cook County Board of Review
Closed for Filing
Closed for Filing
Barrington
April 05
May 05
December 12
January 10
Berwyn*
April 24
May 24
November 21
December 20
Bloom*
July 29
August 29
January 19
February 17
Bremen*
August 5
September 6
January 31
March 1
Calumet*
March 30
May 01
November21
December 20
Cicero*
April 17
May 17
November 21
December 20
Elk Grove
August 1
September 1
January 19
February 17
Evanston
August 8
September 9
January 19
February 17
Hanover
April 17
May 17
December 12
January 10
Hyde Park
November 2
December 5
February 17
March 18
Jefferson
November 10
December 12
March 7
April 5
Lake
November 25
December 27
February 27
March 28
Lake View
October 24
November 25
February 17
March 18
Lemont*
May 09
June 09
November 28
December 27
Leyden
September 16
October 17
February 8
March 9
Lyons*
November 21
December 22
February 27
March 28
Maine
September 7
October 7
February 8
March 9
New Trier
May 24
June 24
December 27
January 25
Niles
November 1
December 2
March 7
April 5
North Chicago
December 2
January 4
March 7
April 5
Northfield
October 3
November 3
February 27
March 28
Norwood Park
March 29
April 29
November 28
December 27
Oak Park*
April 13
May 15
November 21
December 20
Orland*
May 24
June 26
December 12
January 10
Palatine
August 22
September 23
February 8
March 9
Palos*
September 2
October 3
January 19
February 17
Proviso*
November 30
January 3
February 17
March 18
Rich*
October 28
November 29
January 31
March 1
River Forest*
April 27
May 30
November 28
December 27
Riverside*
March 30
May 01
November 21
December 20
Rogers Park
April 25
May 25
December 27
January 25
Schaumburg
May 10
June 12
December 27
January 25
South Chicago
December 2
January 4
March 7
April 5
Stickney*
November 10
December 12
January 31
March 1
Thornton*
August 17
September 19
January 19
February 17
West Chicago
October 12
November 14
February 8
March 9
Wheeling
October 10
November 10
February 17
March 18
Worth*
November 23
December 24
February 27
March 28
* South District Townships will be fully reassessed in 2023 as part of the triennial schedule
Get Your Free Property Tax Reduction Estimate
Over 90% Success Rate on Property Tax Appeals & Protests
No Up-Front Fees