Illinois Income Tax Rate
Illinois uses a flat income tax of about 4.95% on wages.
Illinois state income tax
Illinois uses a flat income tax of about 4.95% on wages. Rates change by law, so check the state revenue department for the current schedule before filing.
Estimated tax on common salaries in Illinois
| Gross salary | Federal tax | State tax | FICA | Take-home |
|---|---|---|---|---|
| $40,000 | $2,620 | $1,980 | $3,060 | $32,340 |
| $60,000 | $5,020 | $2,970 | $4,590 | $47,420 |
| $80,000 | $8,770 | $3,960 | $6,120 | $61,150 |
| $100,000 | $13,170 | $4,950 | $7,650 | $74,230 |
| $150,000 | $24,734 | $7,425 | $11,475 | $106,366 |
Single filer, 2026 standard deduction, no pre-tax deductions.
Federal brackets that also apply
Everyone in Illinois also pays federal income tax. For 2026 a single filer pays 10% on the first $12,400 of taxable income, 12% up to $50,400 and 22% up to $105,700. See the full federal table.
How Illinois compares
9 states do not tax wages, 15 use a flat rate and the rest use graduated brackets. Illinois is a flat-rate state. Other states of the same type:
Frequently asked questions
Does Illinois have a state income tax?
Illinois uses a flat income tax of about 4.95% on wages.
How much state income tax would I pay on $60,000 in Illinois?
About $2,970 for a single filer using our average rate, in addition to $5,020 of federal tax.
What is the top federal tax bracket?
The top federal rate is 37%, applied to taxable income above $640,600 for a single filer in 2026.
Sources and method
- Tax Foundation: state individual income tax rates and brackets
- IRS: tax year 2026 inflation adjustments (Rev. Proc. 2025-32)
Page last updated November 2026. See our editorial policy and disclaimer.