DuPage County Property Tax Appeal Deadlines & Due Dates for 2019

DuPage County Property Tax Appeal Deadlines for 2018Below is a listing of 2019 deadlines for appealing your DuPage County property taxes 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
October 17
November 18
Bloomingdale
July 26
August 26
Downers Grove
November 13
December 16
Lisle
November 27
December 30
Milton
December 6
January 6
Naperville
November 21
December 23
Wayne
December 4
January 3
Winfield
November 13
December 16
York
November 20
December 23

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2018 DuPage County Property Tax Appeal Deadlines & Due Dates

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