Illinois Paycheck Calculator
Illinois takes a flat 4.95% with no standard deduction. See what's left.
Illinois charges a flat 4.95% on all taxable income with no standard deduction. Every dollar of income is taxed at the same rate.
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Estimates only. Not tax or legal advice. Consult a tax professional for accuracy.
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Illinois Paycheck FAQ
Common questions about paychecks and taxes in Illinois
What is the Illinois state income tax rate?
Illinois has a flat income tax rate of 4.95% on all taxable income. There is no standard deduction at the state level, so your full income is taxed at this rate.
Does Illinois have local income taxes?
Illinois does not have local income taxes in most areas. However, some municipalities in the Chicago metro area may have additional taxes or fees.
Why does Illinois tax every dollar with no deduction?
Illinois has no state-level standard deduction, so the 4.95% flat rate applies to your entire income. This makes the effective rate higher than flat-tax states like Arizona (2.5% with a $5,009 deduction) or North Carolina (3.99% with $7,500 deduction).
Does Illinois tax retirement income?
No. Illinois does not tax most retirement income, including Social Security, pensions, 401(k) distributions, and IRA withdrawals.
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