Q&A: Proposed graduated tax in Illinois inches forward

Updated 5/4/2019 9:00 AM

SPRINGFIELD, Ill. -- The Illinois Senate has begun the process for ending the state's 50-year-old flat-rate income tax structure. But Senate approval of a constitutional amendment and proposed rates for a graduated income tax does not guarantee a change.

House Democrats are trying to gather support for Gov. J.B. Pritzker's so-called "fair tax" plan that leans more heavily on wealthier taxpayers. Incomes under $10,000 would be taxed at 4.75% and single filers with incomes over $750,000 would pay 7.99%.


But the change also requires a constitutional amendment to replace the required flat-tax setup. That requires 71 votes and there are 74 House Democrats. Republicans are opposed.

Democratic Reps. Robert Martwick of Chicago and Mike Zalewski (zuh-LEH'-skee) are sponsoring the amendment and rate legislation. They say they're trying to gauge support and satisfy differing desires.

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