Use this free Illinois paycheck calculator to estimate take-home pay with the 4.95% flat state income tax. Whether you search for a paycheck calculator Illinois, an Illinois paycheck tax calculator, or an Illinois hourly paycheck calculator, enter wages or salary, choose pay frequency, and see federal withholding, FICA, and deductions — all privately in your browser.
Illinois paycheck calculator — a free online paycheck calculator Illinois workers use to estimate net pay after the 4.95% flat state income tax, federal taxes, and payroll deductions.
This free Illinois paycheck calculator estimates take-home pay for hourly and salary workers across the state. Use it as a paycheck calculator Illinois employees can run before every pay period — enter wages, pay frequency, and W-4 details to see federal withholding, Illinois state tax, FICA, and deductions in your browser.
Illinois uses a flat 4.95% state income tax on wages after IL-W-4 allowance exemptions. This Illinois paycheck tax calculator — and any paycheck tax calculator Illinois search — breaks out state income tax, federal withholding, Social Security, Medicare, and benefit deductions so you see exactly what is withheld.
Hourly workers in Chicago, Aurora, Naperville, Joliet, and across Illinois can use this Illinois hourly paycheck calculator to model regular hours, overtime, tips, and shift differentials. It works as an hourly paycheck calculator Illinois employees can run without an account — results update instantly.
Searching for an ADP Illinois paycheck calculator, ADP paycheck calculator Illinois, or Illinois ADP paycheck calculator? This site is not affiliated with ADP. It is a free, independent tool Illinois workers can use to estimate take-home pay without logging into a payroll portal. For official withholdings, always refer to your employer's pay stub.
Tax tables use 2026 Illinois withholding rules (4.95% flat rate, $2,925 per IL-W-4 allowance). If you searched for an Illinois paycheck calculator 2025, this tool is updated each tax year with the latest rates. See our methodology for details.
Estimates only — not tax or legal advice. Consult the Illinois Department of Revenue or a tax professional for official withholding guidance.