Property Tax Appeal Update for Proviso Township

Proviso Township is now open for appeal. Reassessments were mailed on 8/31/2020 and the last date to file the initial appeal is 10/5/2020.

Regardless of which of the 38 townships in Cook County you reside, it’s not too early to start your appeal!  Download our FREE app and sign up today so that we can manage the calendar for you!

Proviso Township

  • Assessment Notices Mailed: August 31, 2020
  • Last Date Appeals Accepted: October 5, 2020

Note that the Assessment Calendar and Deadlines periodically change, especially this year.  As new filing dates are determined, they will be added or updated in the calendar, which can be found HERE.