How to appeal a Will County, IL property assessment
✓ Verified — Last verified October 24, 2026
Filing details published for Will County. Match the notice and assessment cycle to the official instructions.
Official appeal instructionsNot tax or legal advice; confirm with your county.
Filing timing
A published appeal date below has passed. Check the official office for the applicable cycle; no later deadline has been inferred.
Where to file
Will County Board of Review; file through the complaint portal or submit the appropriate complaint form.
Official source. Verified .
Official offices
Will County Supervisor of Assessments
Sources for these instructions
https://borcomplaints.willcountysoa.com/FAQ
The Board of Review will be accepting 2026 complaint submissions from Wednesday, August 12, 2026 through Monday, September 14, 2026.
Verified October 24, 2026
https://borcomplaints.willcountysoa.com/FAQ
you may file a complaint with the Will County Board of Review.
Verified October 24, 2026
Continue with your property
Common questions
Where do I file a Will County assessment appeal?
Will County Board of Review; file through the complaint portal or submit the appropriate complaint form.
Updated , from cited verification dates. Individual sources may have earlier checks.