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Home > Tax Info Center > State Income Tax > Illinois
  Illinois State Income Tax
Illinois tax rate and standard deduction

Illinois has a flat tax. There is only one tax bracket in Illinois. The tax rate is 3% of federal adjusted gross income.

Adjusted gross incomeTax rate
Any3%

Illinois Standard Deduction

Illinois has no standard deduction. The flat tax is applied to federal adjusted gross income.

Illinois Personal Exemptions

Yourself: $2,000
Your spouse: $2,000
Children / Dependents: $2,000

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