Illinois Paycheck Calculator Guide
On This Page
Illinois uses a flat income tax rate of 4.95% — every dollar of income is taxed at the same rate regardless of earnings. There are no brackets, no phase-outs, and no exemptions beyond the standard state exemption amount.
Calculate Your Take-Home Pay
Enter your salary, state, and deductions — get your exact net pay in under 100ms.
Tip
Illinois' flat tax makes paycheck math simple: multiply your gross by 4.95% to estimate your state withholding.
Frequently Asked Questions
Illinois charges a flat 4.95% on all income with no progressive brackets.
Calculate Your Take-Home Pay
Enter your salary, state, and deductions — get your exact net pay in under 100ms.
Related Articles
State Taxes
California Paycheck Calculator Guide
California has the highest income tax in the US at 13.3%. Here's how your paycheck is calculated in the Golden State.
Read articleState Taxes
Texas Paycheck Calculator Guide
Texas has no state income tax. Your paycheck only faces federal taxes — keeping significantly more than earners in high-tax states.
Read articleState Taxes
New York Paycheck Calculator Guide
New York has high state taxes plus an NYC surcharge for city residents. Your effective total rate can exceed 30% in New York City.
Read articleGet Salary & Tax Tips
Weekly insights on pay, taxes, and maximizing your take-home.