“A study published by researchers at the Illinois Economic Policy Institute and the University of Illinois at Urbana-Champaign last month found the tax would generate $3.8 billion in its first full year and $4.2 billion by 2030 — revenue estimates the researchers labeled as “conservative.”
The nonpartisan Commission on Government Forecasting and Accountability pegged the number at $2.1 billion annually but cautioned that it could fluctuate greatly by year. About 1% of people in Illinois would pay the tax.”