Illinois Payroll Tax Calculator 2026
Calculate your exact Illinois take-home pay. State income tax: 4.95% flat. Includes federal taxes and FICA.
| Deduction | Per Paycheck | Annual |
|---|---|---|
| Gross Pay | — | — |
| Federal Income Tax | — | — |
| Illinois State Tax | — | — |
| Social Security (6.2%) | — | — |
| Medicare (1.45%) | — | — |
| Total Deductions | — | — |
| Net Take-Home | — | — |
Illinois Income Tax Rates 2026
Illinois state income tax: 4.95% flat rate. Standard deduction: $2,425 personal exemption (single).
Illinois is one of the few states with a completely flat income tax — every dollar taxed at the same rate. No progressive brackets. Illinois also has no standard deduction in the traditional sense; residents claim a personal exemption credit of $2,425 instead.
All Payroll Deductions in Illinois
- Federal income tax: 10%–37% (2026 brackets, based on taxable income after $15,000 standard deduction for single filers)
- Illinois state income tax: 4.95% flat rate
- Social Security: 6.2% on wages up to $176,100
- Medicare: 1.45% on all wages (+ 0.9% on wages over $200,000)
- Payroll Taxes Guide
- Overtime Rules
- Tax Withholding Guide
Chicago residents pay an additional 3.0% city income tax on top of state taxes. Workers in other Illinois cities are not subject to city income tax.
Illinois vs Other States
At $65,000 annual income, Illinois state tax is approximately $3,218/year ($268/month). This is lower than neighboring Wisconsin (5.3%+ graduated) but similar to Indiana (3.15% flat).
About This Calculator
This calculator uses 2026 federal and Illinois state tax rates. Results are estimates — actual withholding may differ based on W-4 elections, itemized deductions, tax credits, and local taxes not included here.
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