Illinois Paycheck Calculator
Estimate your Illinois take-home pay after federal tax, FICA and Illinois state income tax. Illinois charges a flat state income tax rate for all earners.
Estimate only. Based on 2024 federal brackets, FICA, and an approximate average state rate. Actual withholding depends on allowances, pre-tax deductions and local taxes.
Illinois state income tax
Illinois uses a flat state income tax of 4.95% regardless of income level.
Local taxes & deductions
Illinois does not impose a separate local income tax on wages in most jurisdictions.
Federal tax & FICA
Every paycheck in Illinois is subject to federal income tax (based on the 2024 brackets and your filing status) plus FICA — 6.2% Social Security up to the wage base and 1.45% Medicare. These are included in the take-home estimate above.
Estimate only. Actual withholding depends on allowances, pre-tax deductions, local taxes and other factors. This tool is for educational use, not tax advice.
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