States / Illinois
Illinois is one of the simplest states to estimate: a true flat 4.95% rate applies to every dollar of taxable income, regardless of how much you earn.
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Pre-tax deductions (optional)
EARNINGS STATEMENT · ESTIMATE
Bi-weekly take-home
$0.00
Itemized per paycheck
0.0%
Effective tax rate
0%
Federal marginal rate
0.0%
Of gross kept
Estimate only — doesn't account for local/city tax, filing credits, or non-standard deductions. Not tax advice.
Flat 4.95% state income tax rate — no brackets, same rate at every income level.
Illinois' constitution requires a flat tax; a 2020 ballot measure to allow progressive rates failed.
Chicago residents don't pay a separate city income tax (unlike New York City).
Illinois has relatively high property and sales tax to compensate.
Flat statutory rate — not a bracket-based estimate, so this number is exact rather than approximate.