Cook County Property Tax Appeal Deadlines & Due Dates for 2018
Below is a listing of 2018 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 | September 10 | October 9 |
| Berwyn | March 1 | April 2 | August 1 | August 30 |
| Bloom | September 6 | October 9 | December 10 | January 8 |
| Bremen | April 25 | May 25 | August 20 | September 18 |
| Calumet | May 30 | July 2 | September 10 | October 9 |
| Cicero | April 17 | May 17 | August 1 | August 30 |
| Elk Grove | March 22 | April 23 | August 1 | August 30 |
| Evanston | February 22 | March 26 | August 1 | August 30 |
| Hanover | August 29 | October 1 | November 28 | December 27 |
| Hyde Park | June 19 | July 19 | October 15 | November 13 |
| Jefferson | July 16 | August 16 | November 7 | December 6 |
| Lake | July 30 | August 30 | November 28 | December 27 |
| Lake View | May 7 | June 7 | October 15 | November 13 |
| Lemont | June 4 | July 5 | September 10 | October 9 |
| Leyden | June 28 | July 30 | October 15 | November 13 |
| Lyons | May 14 | June 14 | September 10 | October 9 |
| Maine | April 20 | May 21 | August 1 | August 30 |
| New Trier | March 19 | April 19 | August 1 | August 30 |
| Niles | August 28 | September 28 | November 28 | December 27 |
| North Chicago | September 5 | October 5 | December 10 | January 8 |
| Northfield | May 21 | June 21 | September 10 | October 9 |
| Norwood Park | February 9 | March 12 | August 1 | August 30 |
| Oak Park | March 1 | April 2 | August 1 | August 30 |
| Orland | July 19 | August 20 | November 7 | December 6 |
| Palatine | August 1 | September 4 | November 28 | December 27 |
| Palos | April 3 | May 3 | August 1 | August 30 |
| Proviso | July 17 | August 17 | November 7 | December 6 |
| Rich | September 4 | October 4 | November 28 | December 27 |
| River Forest | February 2 | March 6 | August 1 | August 30 |
| Riverside | January 31 | March 2 | August 1 | August 30 |
| Rogers Park | April 23 | May 23 | August 20 | September 18 |
| Schaumburg | August 13 | September 14 | November 28 | December 27 |
| South Chicago | September 12 | October 12 | December 10 | January 8 |
| Stickney | May 22 | June 22 | September 10 | October 9 |
| Thornton | August 10 | September 11 | November 28 | December 27 |
| West Chicago | August 24 | September 25 | December 10 | January 8 |
| Wheeling | July 17 | August 17 | November 7 | December 6 |
| Worth | June 21 | July 23 | October 15 | November 13 |
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2017 Cook County Property Tax Appeal Deadlines & Due Dates
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