Welcome to the Will County Supervisor of Assessments Office!

We are your official source for property assessments and exemption information. Our knowledgeable staff takes pride in our ability to offer you the most accurate and up-to-date statutory guidelines with all of your assessment, exemption, appeal and any other property tax information and concerns.

2022 Board of Review Information

The 2022 Board of Review Final Decision notices were mailed out on January 25th, 2023.

For your convenience, the 2022 Board of Review Final Decisions are located on the section menu, or you can click here:

2022 Board of Review Final Decisions

If you are unsatisfied with your final decision, you may file an appeal at the Illinois Property Tax Appeal Board (PTAB).
The PTAB deadline is February 24th, 2023. You may find more information here: www.ptab.illinois.gov


Turning 65 this year?

Do you own and occupy your home in Will County as your primary residence? You may be eligible for the Senior Citizen’s Homestead Exemption!
No need to wait until your birthday. If you turn 65 in 2023, you may download an application from our "Forms" page and mail it to our office at:

Will County Supervisor of Assessments Office
302 N. Chicago Street
Joliet, IL 60432

- OR -  Call the SOA office at (815) 740-4648 for more information.


2023 Exemption Renewals

Let the countdown begin! Exemption renewals will be mailed out at the end of April.

For those residents that require an annual exemption renewal and who applied for exemptions previously, you are already on the mailing list to receive a renewal application.

Residents interested in their eligibility for a property tax exemption may call our office at (815) 740-4648 or head over to "Exemptions" page.



Questions regarding your Property Tax Bill?

Please contact the Will County Treasurer!

Website: www.willcountytreasurer.com

Phone: (815) 740-4675


The Will County Supervisor of Assessments Office governs every aspect of the assessment process, acting as a central resource for its county's residents. We believe that our primary responsibility is to the taxpayers, and we are committed to ensure that all county residents receive fair and equitable assessments. We are also dedicated to making sure that eligible taxpayers are receiving the beneficial exemptions they are entitled to; all with the utmost courteous and respectful service. The Supervisor of Assessments Office is also committed to promoting taxpayers education and involvement in the assessment process through open discussion forums, informational meetings, and community outreach endeavors. The valuations for 2022 are for the assessment year of 2022, payable in 2023. This means that the assessment you are looking at is for this year's upcoming tax bill. The tax rates for this year have not been established yet. The Supervisor of Assessments does not establish tax rates (tax rates are established by local taxing bodies). However, you can search our website for the most current assessments using our Property Search Portal, where you can conduct property searches by PIN, property address, and more.

For an explanation on tax rates, please visit the Will County Clerk's Office.

For any additional tax bill questions visit the Will County Treasurer's Office.

For additional Will County Departments, click here.

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