What comes out of a Illinois paycheck
Your gross pay is reduced by three federal-and-state deductions: federal income tax, FICA (6.2% Social Security plus 1.45% Medicare), and Illinois state income tax.
Illinois adds its state income tax on top of the federal deductions, which lowers take-home compared with a no-income-tax state.
What remains is your net, or take-home, pay. This calculator estimates it from your salary, filing status and pay frequency.
Filing status and pay frequency
Filing status sets your federal standard deduction and brackets, so the same salary yields different take-home for a single filer versus married filing jointly.
Pay frequency only splits the same annual net into more or fewer cheques — weekly cheques are smaller than monthly, but the yearly total is identical.
What this estimate leaves out
Real paychecks also reflect your W-4, pre-tax retirement and health contributions, and any local city taxes, which this estimate does not model. The IL portion uses single-filer state rates.
Treat it as a planning figure and verify with the Illinois Department of Revenue (tax.illinois.gov) and your pay stub.
Frequently asked questions
How much is taken out of a paycheck in Illinois?
Federal income tax, 7.65% FICA, and Illinois state income tax are withheld. The calculator estimates each and your net take-home.
Does Illinois have state income tax withholding?
Yes. Illinois state income tax is withheld from wages in addition to federal tax and FICA.
What is FICA on my paycheck?
FICA is the 6.2% Social Security and 1.45% Medicare payroll tax — 7.65% total — withheld from your wages and matched by your employer.
Why is my real paycheck different?
Your W-4 choices, 401(k) and health-insurance deductions, and any local taxes change withholding. This federal-plus-state estimate does not include them.