Overview of Illinois Taxes
Illinois enforces a flat income tax rate of 4.95%. Starting 2023, a singular rate of 5% applies to income exceeding $10,000, replacing the prior 4% rate on income between $5,000 and $10,000, with plans to reduce this rate progressively in subsequent years.
To use the Illinois income tax calculator, simply input your desired salary and filing status to begin.
2023/24 Illinois Income Tax Calculator
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