2025 Federal and Illinois Tax Brackets
2025 Federal Tax Brackets
| Tax Rate | Single | Married Filing Jointly | Head of Household |
|---|---|---|---|
| 10% | $0 - $11,600 | $0 - $23,200 | $0 - $16,550 |
Illinois State Tax Rate
Illinois has a flat income tax rate of 4.95% for all income levels in 2025. This means regardless of how much you earn, you'll pay the same percentage of your income in state taxes.
Key Points About Illinois State Tax:
- Flat tax rate of 4.95% applies to all income levels
- No tax brackets or progressive rates
- Same rate applies to both earned income and investment income
- Standard deduction and personal exemption available
Additional Tax Considerations
In addition to federal and state income taxes, you may also be subject to:
- Social Security tax (6.2% up to $168,600 in 2025)
- Medicare tax (1.45% on all earnings)
- Additional Medicare tax (0.9% on income above $200,000)