If your Certificate of Error for valuation corrections has been approved and you are waiting for a refund, please check with the Cook County Treasurer’s Office for updates on timing of refunds. Check this alert banner for regular updates.
Information and reports about commercial property valuations, COVID adjustments, and real estate data.
We assist property owners who wish to submit information for accurate valuations, apply for a tax incentive, and more.
We've created tools for business property owners for valuations and property tax information.
