July 12, 2023
Dan Snow, Director of Data Science, holds microphone and is presenting on PTAXSIM at ChiHackNight. January 17, 2023
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Assessor's Office Honored with National Association of Counties Achievement Award
Cook County – The Cook County Assessor’s Office (CCAO) received a National Association of Counties Achievement Award for the creation of a tool called the Property Tax Simulator, also known as PTAXSIM. This is a software code package implemented in the coding language R and is designed to recalculate changes to Cook County property tax bills. It uses real assessment, exemption, TIF, and levy data to generate historic, line-by-line tax bills for properties in Cook County from tax years 2006 to 2020. Why is this important? Policy makers, researchers, and journalists can now create historical counterfactual scenarios to determine how policy changes could impact the property tax system.