Chicago's tax increment finance districts caused property tax bills to increase significantly during the last 40 years but did little to spur economic growth in the parts of the city that needed it most, according to a study released Aug. 26, 2026 by the Great Cities Institute at the University of Illinois Chicago [S1]. The study concludes that TIF districts "reinforced the city's historic economic inequities instead of reducing them" and operated with "little transparency or accountability from city planning officials" [S1].
Between 2014 and 2023, Chicago property owners saw their property tax bills grow 13.7 percent because of TIF districts, the study concludes [S1]. But less than 2 percent of the growth in the assessed valuation of all Chicago properties can be attributed to subsidies from a TIF district, meaning the vast majority of growth was not due to their creation [S1]. UIC Great Cities Institute Associate Director Matthew Wilson said Chicago's TIF captures about $55 of property value for every dollar it creates [S2]. "The study found only about 1.8% of the growth that TIF captures can be actually attributed to the TIF investment. The other 98.2% would have happened anyway," Wilson said [S2].
In all, $1.59 billion poured into the city's 108 TIF funds in 2024, an increase of more than 51 percent since 2020, according to data from the Cook County Clerk's Office [S1]. No other city in the United States has more TIF districts than Chicago [S1]. The study declares that TIF districts in Chicago have become a "runaway tool" that have grown too large and too complex for both members of the public and elected officials to ensure they are actually being used to spur equitable development [S1].
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