Illinois Paycheck Calculator
Calculate your net pay after Illinois state and federal taxes. Enter your gross pay, pay frequency, and filing status to see your take-home amount.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Illinois Paycheck Calculator
- Enter Gross Pay: Input your total earnings before any deductions (e.g., 5000). Must be a positive number.
- Select Pay Frequency: Choose how often you get paid (Weekly, Bi-Weekly, Semi-Monthly, or Monthly). This affects annual projections.
- Choose Filing Status: Select your W-4 filing status (Single, Married Filing Jointly, or Head of Household).
- Set Allowances: Enter the number of allowances from your W-4 (default 2). Each allowance reduces taxable income by $4,300 annually.
- Add Deductions (optional):
- Pre-tax Deductions: Amounts taken before taxes (e.g., 401k contributions).
- Post-tax Deductions: Amounts taken after taxes (e.g., Roth IRA or wage garnishments).
- Calculate: Click the "Calculate Net Pay" button. Results show a breakdown of taxes (Federal, Social Security, Medicare, Illinois State at 4.95%) and your final net pay.
Note: All monetary values are in US dollars. The calculator uses simplified federal tax brackets based on your filing status and allowances.
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Frequently Asked Questions
Illinois has a flat state income tax rate of 4.95%. This is applied to your gross pay per pay period.
Allowances are based on your W-4 form. Each allowance reduces your taxable income by $4,300 per year. More allowances mean less federal tax withheld.
It includes federal income tax, Social Security (6.2%), Medicare (1.45%), Illinois state tax (4.95%), and user-provided pre-tax and post-tax deductions. It does not include local taxes or other state-specific adjustments.
