Illinois has a flat 4.95% state income tax rate — every dollar of taxable income is taxed at the same rate. On a $75,000 salary, an Illinois resident keeps about $58,016 after federal and state taxes. Use the calculator below — it defaults to Illinois.

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📋 Detailed Tax Breakdown

Illinois Take-Home Pay by Salary (2026, Illustrative)

Illinois’s personal exemption is inflation-indexed annually; the table below uses an illustrative ~$2,750 exemption. Confirm the exact current amount with the Illinois Department of Revenue.

Gross Salary Federal Tax FICA IL State Tax (illustrative) Take-Home (illustrative) Eff. Rate
$40,000 $2,620 $3,060 $1,844 $32,476 18.8%
$50,000 $3,820 $3,825 $2,339 $40,016 20.0%
$60,000 $5,020 $4,590 $2,834 $47,556 20.7%
$75,000 $7,670 $5,738 $3,576 $58,016 22.6%
$100,000 $13,170 $7,650 $4,814 $74,366 25.6%
$150,000 $24,734 ~$11,475* $7,289 ~$106,502 ~29.0%
$200,000 $36,734 ~$15,300* $9,764 ~$138,202 ~30.9%

*At $150,000 and $200,000, Social Security tax may be capped at the annual wage base — confirm the current 2026 figure with the SSA. IL rate: 4.95% on net income. Estimates only.

How Illinois Income Tax Works

Illinois uses a flat tax — unlike most states with graduated brackets. Every taxpayer pays 4.95% of taxable income. The only deduction is a personal exemption per person (plus dependents) — confirm the exact current-year amount with the Illinois Department of Revenue, as this session found inconsistent figures cited in different sources. There is no standard deduction comparable to the federal $16,100 (2026).

Illustrative example calculation on $75,000 (using a ~$2,750 exemption):

  • Illinois taxable income ≈ $75,000 − $2,750 = $72,250
  • Illinois tax ≈ $72,250 × 4.95% = $3,576

Note that Illinois does not tax Social Security or retirement income, which significantly reduces the tax burden for retirees compared to working-age residents.

Illinois vs. Neighboring States (Illustrative)

$100,000 salary, single filer — confirm current figures with each state’s dedicated calculator:

State State Tax (2026, approx.) Illustrative Take-Home
Indiana (2.95% flat, state only) ~$2,950 ~$76,230
Wisconsin (graduated) Confirm current figure Confirm current figure
Illinois (4.95% flat) ~$4,814 ~$74,366
Iowa (3.8% flat) ~$3,800 ~$75,380
Missouri (confirm current top rate) Confirm current figure Confirm current figure

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