DuPage County Property Tax Appeal Deadlines & Due Dates for 2018
Below is a listing of deadlines for appealing your DuPage County property taxes in 2018 with the Supervisor of Assessments.
- 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. Click here if you don’t know which DuPage County township you live in.
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| DuPage County Township | DuPage County Assessor Open for Filing (Notice Date) |
DuPage County Board of Review Closed for Filing (Final Complaint Filing) |
|---|---|---|
| Addison | September 13, 2018 | October 15, 2018 |
| Bloomingdale | June 28, 2018 | July 30, 2018 |
| Downers Grove | November 27, 2018 | December 31, 2018 |
| Lisle | October 30, 2018 | November 30, 2018 |
| Milton | September 19, 2018 | October 22, 2018 |
| Naperville | October 18, 2018 | November 19, 2018 |
| Wayne | October 16, 2018 | November 16, 2018 |
| Winfield | October 3, 2018 | November 5, 2018 |
| York | November 20, 2018 | December 24, 2018 |
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