Illinois Paycheck Calculator
Calculate your Illinois take-home pay with our free Illinois paycheck calculator. Our Illinois salary calculator uses the 4.95% flat Illinois income tax rate for accurate Illinois paycheck estimates. Get instant results with our Illinois paycheck calculator updated for 2025.
Free Illinois Paycheck Calculator
Use our Illinois paycheck calculator to estimate your take-home pay. This Illinois salary calculator applies the 4.95% Illinois income tax rate plus federal taxes for accurate Illinois paycheck calculations.
Enter Your Information
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Enter your salary information and click calculate to see your take-home pay breakdown
Illinois Income Tax Information
Our Illinois paycheck calculator uses the official 4.95% Illinois income tax rate. Illinois has a simple flat tax system, making our Illinois salary calculator easy to use for accurate Illinois paycheck estimates.
Same rate for all income levels
Reduces taxable Illinois income
No city or county taxes
Why Illinois Has a Flat Tax
Illinois uses a flat income tax system where everyone pays the same 4.95% rate regardless of income. This makes Illinois income tax calculations simpler than progressive tax states.
How Does the Illinois Paycheck Calculator Work?
Our Illinois paycheck calculator helps you estimate your take-home pay by calculating Illinois income tax, federal income tax, Social Security, Medicare, and other deductions. This Illinois salary calculator uses the 4.95% flat Illinois income tax rate that applies to all Illinois residents regardless of income level.
The Illinois paycheck calculator is simple to use because Illinois has a flat tax system. Unlike states with progressive tax brackets, the Illinois income tax calculator applies the same 4.95% rate to everyone. Our Illinois paycheck calculator also accounts for the $2,850 personal exemption for 2025.
To use our Illinois salary calculator, simply enter your annual salary, pay frequency, and filing status. The Illinois paycheck calculator will then show you how much Illinois income tax, federal tax, and FICA taxes are withheld from each paycheck, giving you an accurate Illinois take-home pay estimate.
What's Included in Illinois Paycheck Calculations?
- Illinois income tax at 4.95% flat rate
- Federal income tax based on 2025 IRS brackets
- Social Security tax (6.2% up to $168,600)
- Medicare tax (1.45% + 0.9% over $200,000)
- Illinois personal exemption ($2,850 for 2025)
- Pre-tax deductions (401k, HSA, health insurance)
Understanding Illinois Income Tax
Illinois income tax is one of the simplest in the nation. The Illinois paycheck calculator uses a flat 4.95% rate that applies to all income levels. This means whether you earn $30,000 or $300,000, our Illinois salary calculator applies the same 4.95% Illinois income tax rate.
The flat tax system makes our Illinois paycheck calculator straightforward to use. There are no complex tax brackets to navigate in the Illinois income tax calculator. However, the Illinois paycheck calculator does account for the personal exemption of $2,850, which reduces your taxable Illinois income.
Unlike some states, Illinois has no local income taxes. Our Illinois salary calculator doesn't need to account for city or county taxes, whether you live in Chicago, Springfield, or any other Illinois city. The Illinois paycheck calculator only calculates the 4.95% state rate plus federal taxes.
Illinois Flat Tax Advantage
Our Illinois paycheck calculator shows that Illinois's 4.95% flat tax rate is simpler than progressive tax states. The Illinois salary calculator provides straightforward calculations without complex brackets.
However, higher earners may pay more Illinois income tax compared to states with progressive systems. Use our Illinois paycheck calculator to see exactly how Illinois income tax affects your paycheck.
How to Calculate Illinois Take-Home Pay
Enter Your Annual Salary
Start with your gross annual salary in the Illinois paycheck calculator. The Illinois salary calculator uses this to calculate all withholdings.
Apply Illinois Income Tax
The Illinois paycheck calculator applies the 4.95% Illinois income tax rate after subtracting the $2,850 personal exemption. Our Illinois income tax calculator handles this automatically.
Calculate Federal Taxes
The Illinois salary calculator then calculates federal income tax using 2025 IRS brackets. This Illinois paycheck calculator includes federal withholding for accurate estimates.
Subtract FICA Taxes
Our Illinois paycheck calculator deducts Social Security (6.2%) and Medicare (1.45%) taxes. The Illinois salary calculator includes these federal payroll taxes.
Get Your Illinois Take-Home Pay
The Illinois paycheck calculator shows your net pay per paycheck, monthly, and annually. This Illinois income tax calculator gives you complete Illinois paycheck breakdown.