Illinois tax brackets for 2025
These tables summarize the Illinois income tax brackets that apply to wages earned in 2025. Pair them with our calculator to estimate withholding.
Single filers
| Bracket | Starts at | Rate |
|---|---|---|
| 1 | $0 | 4.95% |
Married filing jointly
| Bracket | Starts at | Rate |
|---|---|---|
| 1 | $0 | 4.95% |
Update notes
- Illinois levies a flat income tax on all taxable income.