Email Deputy Clerk for all property record card information and deed numbers.
Dates To Remember
Assessment Complaints may be filed within 30 days after the Supervisor of Assessment Notices of Assessment Change have been published. Forms are available in the office of the Supervisor of Assessments. The complaints are filed with the Iroquois County Board of Review.
January 1 through December 31 – Period for notifying the Township or County Assessor that the property is owner occupied. Period for original application for Senior Citizens Exemption.
January 1 through July 1 – Period to file for Low-Income Senior Citizen Assessment Freeze Homestead Exemption. Must show copies of Federal Tax Return for the year prior to year of application. Must show copies of SSA-1099 showing amount received from Social Security for the year prior to year of application.
Why Values Change
State law requires that all real property be reassessed every four years. Changes in market value as indicated by research, sales ratio studies and analysis of local conditions as well as economic trends both in and outside the construction industry are used in determining your assessment. If you disagree with the assessor's estimate of value, please consider these two questions before proceeding, as outlined below:
- What is the actual market value of my property?
- How does the value compare to similar properties in the neighborhood?
A. If you have any questions about the assessment of your property, call your Township Assessor.
B. You may file a written protest with the Board of Review, which is composed of three members from various areas of the assessing jurisdiction. The Board operates independently of the assessor's office, and has the power to confirm or to adjust either upward or downward any assessment.
C. If you are not satisfied with the decision of the Board of Review you may appeal to PTAB (Property Tax Appeal Board) within 30 days from the date the Board of Review mails the final decision.
Exemption Forms
- Disabled Person PTAX-343
- Disabled Person Renewal PTAX-343-R
- Disabled Veteran PTAX-342
- Disabled Veteran Renewal PTAX-342-R
- Returning Veterans PTAX-341
- Senior Homestead PTAX-324
- Low-Income Senior Freeze PTAX-340 (2025 payable 2026)
- Low-Income Senior Freeze PTAX-340 (2026 payable 2027)
- Physician's Statement PTAX-343-A
- Application for Disabled Person ID Card

