Assessment Calendar and Deadlines

The 2021 assessment and appeal schedule coincides with the implementation of iasWorld, a new integrated property tax system. This upgrade moves us from an aging mainframe system onto a state-of-the-art platform that allows property owners to easily access and update property data. Therefore, assessment mailing dates and appeal dates are subject to change. Please plan accordingly. Information will be published as it becomes available.

As new townships are certified, those dates will be published below.

Our phone lines remain open to the public during normal business hours and assistance is available via our website and social media channels.

Last updated: 05/02/2022

Note that values may take 24 hours to update online from the mail / certified date. Result letters will be sent in the mail or sent to practitioners via GovQA in the few days after certification.

2021 Assessment Calendar: City of Chicago

Township	Reassessment Notice Mail Date	Last Day to File CCAO Appeal	Date A-Roll Certified	Date A-Roll Published	Board of Review appeal dates	Pass
Rogers Park	6/15/2021	7/19/2021	1/28/2022	2/3/2022	2/14/2022 - 3/15/2022	2
West Chicago	7/21/2021	8/23/2021	3/21/2022	3/31/2022	4/4/2022 - 5/3/2022	2
Jefferson	8/16/2021	9/17/2021	4/12/2022	4/23/2022	5/2/2022 - 5/31/2022	2
North	9/17/2021	10/19/2021	4/7/2022	4/20/22	4/26/2022 - 5/25/2022	2
South	9/30/2021	11/1/2021	4/11/2022	4/23/2022	4/26/2022 - 5/25/2022	2
Lake	11/4/2021	12/6/2021	4/12/2022	4/20/2022	4/26/2022 - 5/25/2022	2
Lake View	11/22/2021	12/23/2021	3/29/2022	4/6/2022	4/11/2022 - 5/10/2022	2
Hyde Park	12/15/2021	1/21/2022	4/1/2022	4/7/2022	4/11/2022 - 5/10/2022	2

2021 Assessment Calendar: Suburbs (North, South, and West)

In the North Suburban and South and West Suburban townships, individual properties will only be reassessed only if there is a change due to division work, permit applications, or other special applications.

Note that values may take 24 hours to update online from the mail date.

Township	Reassessment Notice Mail Date	Last Day to File CCAO Appeal	Date A-Roll Certified	Date A-Roll Published	Board of Review Appeal Dates	Pass
River Forest	4/21/2021	5/21/2021	11/15/2021	12/02/2021	12/06/2021 - 1/04/2022	2
Riverside	4/22/2021	5/22/2021	11/16/2021	12/02/2021	12/06/2021 - 1/04/2022	2
Evanston	5/7/2021	6/7/2021	1/28/2022	2/10/2022	02/14/2022 - 3/15/2022	2
Oak Park	5/17/2021	6/16/2021	11/24/2021	12/01/2021	12/06/2021 - 1/04/2022	2
Norwood Park	5/17/2021	6/16/2021	11/17/2021	12/02/2021	12/06/2021 - 1/04/2022	2
Berwyn	6/1/2021	7/1/2021	12/20/2021	12/23/2021	1/03/2022 - 2/01/2022	2
New Trier	6/1/2021	7/1/2021	12/20/2021	12/30/2021	1/03/2022 - 2/01/2022	2
Cicero	6/8/2021	7/9/2021	12/13/2021	12/16/2021	12/22/2021 - 1/20/2022	2
Palatine	6/14/2021	7/16/2021	12/30/2021	1/06/2022	2/14/2022 - 3/15/2022	2
Schaumburg	6/16/2021	7/19/2021	12/23/2021	12/30/2021	1/03/2022 - 2/01/2022	2
Elk Grove	6/28/2021	7/29/2021	2/7/2022	2/10/2022	2/14/2022 - 3/15/2022	2
Orland	7/2/2021	8/3/2021	1/28/2022	2/2/2022	2/14/2022 - 3/15/2022	2
Calumet	7/2/2021	8/3/2021	12/13/2021	12/15/2021	12/22/2021 - 1/20/2022	2
Hanover	7/14/2021	8/16/2021	12/23/2021	12/30/2021	1/03/2022 - 2/01/2022	2
Barrington	7/14/2021	8/16/2021	12/10/2021	12/16/2021	12/22/2021 - 1/20/2022	2
Bloom	7/23/2021	8/23/2021	2/17/2022	2/23/2022	2/28/2022 - 3/29/2022	2
Maine	7/23/2021	8/23/2021	3/18/2022	3/24/2022	3/28/2022 - 4/26/2022	2
Thornton	8/9/2021	9/9/2021	2/17/2022	2/24/2022	2/28/2022 - 3/29/2022	2
Palos	8/12/2021	9/13/2021	3/16/2022	3/24/2022	3/28/2022 - 4/26/2022	2
Lemont	8/14/2021	9/14/2021	2/7/2022	2/11/2022	2/14/2022 - 3/15/2022	2
Worth	8/24/2021	9/24/2021	4/8/2022	4/21/2022	4/26/2022 - 5/25/2022	2
Leyden	8/30/2021	9/30/2021	3/21/2022	3/31/2022	4/4/2022 - 5/3/2022	2
Northfield	9/3/2021	10/04/2021	3/28/2022	4/7/2022	4/11/2022 - 5/10/2022	2
Bremen	9/15/2021	10/18/2021	2/11/2022	2/16/2022	02/28/2022 - 03/29/2022	2
Lyons	9/21/2021	10/25/2021	4/12/2022	4/20/2022	4/26/2022 - 5/25/2022	2
Wheeling	10/05/2021	11/05/2021	4/1/2022	4/7/2022	4/11/2022 - 5/10/2022	2
Proviso	10/08/2021	11/08/2021	4/8/2022	4/20/2022	5/2/2022 - 5/31/2022	2
Stickney	10/14/2021	11/29/2021	4/6/2022	4/21/2022	5/2/2022 - 5/31/2022	2
Rich	10/26/2021	11/29/2021	4/5/2022	4/20/2022	5/2/2022 - 5/31/2022	2
Niles	11/1/2021	12/03/2021	4/5/2022	4/21/2022	5/2/2022 - 5/31/2022	2

Tentative township order for 2022 reassessment

The following ten townships will be the first to be reassessed and opened for appeals in the 2022 reassessment cycle.

River Forest
Riverside
Oak Park
Cicero
Calumet
Norwood Park *
Berwyn
Barrington *
Bloom
Hanover *

* Townships in the 2022 triennial reassessment of the north suburbs

At this time, we do not have exact dates for when 2022 reassessment notices will be distributed or townships will be open for appeals. When the 2022 reassessment cycle begins, more specific information will be posted on this page.

Our office continues to process appeals and certify townships as part of the 2021 Chicago reassessment process.

The CCAO is working in conjunction with the Cook County Bureau of Technology and the Cook County Board of Review on the implementation of iasWorld, a new integrated property tax system. In order to certify townships, both the CCAO and the BOR County offices must make changes to their internal systems. This process has led to delays in certifying townships. All offices of the property tax system are working diligently to manage this process.