Illinois income tax calculator 2026
Estimate your 2026 Illinois state income tax. Illinois has a flat 4.95% state income tax. See your taxable income, marginal rate and the same income in other states.
- ๐บ๐ธ US federal & state rules
- 2026 state rates, checked against state revenue departments
- See sources
Illinois state income tax for 2026
$3,567.71
4.76% of $75,000. Marginal rate 4.95%.
- State taxable income
- $72,075
- Federal income tax
- $7,670
- Federal + state
- $11,238 (15%)
- Monthly
- $297.31
This is an example. Enter your numbers above and press the button to see your own result.
Same income in other states
| Illinois | $3,568 (4.8%) |
|---|---|
| Texas | no income tax |
| Florida | no income tax |
| California | $2,775 (3.7%) |
| New York | $3,453 (4.6%) |
| Pennsylvania | $2,303 (3.1%) |
- A planning estimate using Illinois's standard deduction and personal exemptions or credits. Itemized deductions, state-specific credits and retirement income rules are not applied.
Show the math
| Income after pre-tax contributions | $75,000 |
|---|---|
| Personal and dependent exemptions | โ$2,925 |
| State taxable income | $72,075 |
| Tax at 4.95% | $3,567.71 |
| State tax | $3,567.71 |
What to do next
How it works
The calculator starts from your income after pre-tax contributions, subtracts Illinois's standard deduction and personal exemptions where they exist, and applies a flat 4.95% state income tax. Personal credits come off the tax. Illinois allows a personal exemption of $2,925.
Things to keep in mind
Illinois has no local income taxes. Itemized deductions and state-specific credits are not applied, so filers with large deductions will owe less than shown.
Some Illinois rules, such as high-income phase-outs or special rates on certain income, are left out of this estimate. The state revenue department's own calculator or instructions have the full detail.
Sources
Rules applied as of 2026-01-01. See the sources below for details.
- Tax Foundation, State Individual Income Tax Rates and Brackets, 2026Checked 2026-10-19
Frequently asked questions
What is the Illinois income tax rate?
A flat 4.95% on taxable income for 2026.
What is the Illinois standard deduction?
Illinois has no general standard deduction. It allows a personal exemption of $2,925 instead.
Does Illinois tax Social Security or retirement income?
This calculator is for wages and ordinary income. Illinois's treatment of Social Security, pensions and retirement account withdrawals follows separate rules that are not applied here.
Are there local income taxes in Illinois?
No. Illinois does not allow cities or counties to tax wages.