To view an informational presentation regarding recent changes in the farmland assessment law, please click here to view The Storymap.

The office of Supervisor of Assessments was created by state law to provide information to the Department of Revenue. The Supervisor's office maintains records of total exempt properties and exemptions such as senior, veterans and model home exemptions, meets with township assessors to supply technical advice and information regarding current legislation and establishes guidelines for the assessors. 

In addition, the Supervisor of Assessment's office reviews assessments made by township assessors, equalizes assessments within the county, by township, and is responsible for publishing assessment change notices.  

By early June of each year, the Assessment's delivers the assessment books to the Board of Review and prepares a tentative abstract of the assessment books for the Department of Revenue.

To view a list of the 2019 equalization factors and the 2019 list of assessment changes as published in the newspaper please see below.

Need more information about taxes in the State of Illinois?