Tax relief and valuation review
A homestead exemption, senior-relief program, or valuation protest can change the amount a homeowner owes—but only if the filing reaches the right local office in the correct window. Use the verified county guidance below as your working checklist, then confirm the current form and deadline with Iroquois County Supervisor of Assessments.
Relief programs
The filing guidance for this county is: January 1 through July 1 for the Low-Income Senior Citizen Assessment Freeze Homestead Exemption; the reviewed official page did not publish a separate 2026 general homestead deadline. Use the official form or application channel, provide the residence and ownership documentation requested, and keep a copy of the submission.
Open homestead applicationIroquois County identifies the Senior Homestead Exemption and Low-Income Senior Citizen Assessment Freeze. The freeze filing period is January 1 through July 1 and requires prior-year federal tax-return and SSA-1099 documentation.
the reviewed official county sources did not publish a county-specific primary-residence valuation-growth cap.
Appealing an assessment
Use the valuation notice and the county’s published protest guidance to determine the last day to file. Do not assume the payment deadline controls the appeal.
Gather comparable sales, photographs, repair records, appraisal evidence, property characteristics, and any documentation that explains why the assessed value is incorrect.
Submit through the official channel, save the confirmation, and attend the board or review hearing if one is scheduled. An appraiser or attorney can help evaluate evidence when the value or stakes are substantial.
The verified protest guidance for this county is: Within 30 days after publication of the Supervisor of Assessment's Notices of Assessment Change; the reviewed 2026 page did not publish a single calendar date. If the language is not a specific calendar date, contact the office promptly for the current notice and board-review schedule.