How Illinois taxes your paycheck
Illinois taxes wages at a flat 4.95% and a personal exemption of $2,925.
Federal deductions are the same everywhere: income tax on earnings above the $16,100 standard deduction (single) using the 2026 brackets, 6.2% Social Security on the first $184,500, and 1.45% Medicare on everything.
Illinois take-home pay examples
Single filer, paid every two weeks, standard deduction, no pre-tax benefits:
| Salary | Federal tax | FICA | Illinois tax | Take-home / year | Per paycheck | Effective rate |
|---|---|---|---|---|---|---|
| $40,000 | $2,620 | $3,060 | $1,835 | $32,485 | $1,249.41 | 18.8% |
| $60,000 | $5,020 | $4,590 | $2,825 | $47,565 | $1,829.41 | 20.7% |
| $80,000 | $8,770 | $6,120 | $3,815 | $61,295 | $2,357.49 | 23.4% |
| $100,000 | $13,170 | $7,650 | $4,805 | $74,375 | $2,860.57 | 25.6% |
| $150,000 | $24,734 | $11,475 | $7,280 | $106,511 | $4,096.57 | 29% |
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Estimate for W-2 employees using the standard deduction. Doesn't include tax credits, itemised deductions or local taxes unless entered. Updated for tax year 2026.