Illinois paycheck calculator after tax
Illinois residents face a top marginal state rate of 4.95% in 2025. This page shows how Illinois taxes interact with federal withholding so you can forecast net pay before payday.
Top marginal Illinois rate: 4.95%
Paycheck After Tax Calculator
Estimate your take-home pay after federal, FICA, state, and local taxes. Fine-tune your deductions and instantly share a link that preserves every setting.
Net take-home pay
Your paycheck after federal, FICA, state, and local taxes.
Enter your salary and filing details, then choose Update results to see your take-home pay.
Not tax advice | See Methodology | Last updated: 2025
Detailed tax breakdown
| Category | Amount |
|---|---|
| Federal income tax | -- |
| Social Security | -- |
| Medicare | -- |
| State income tax | -- |
| Local income tax | -- |
| Total tax | -- |
| Net take-home pay (annual) | -- |
Effective tax rate: --
Marginal rate estimate: --
Run the calculator to unlock a detailed breakdown of your paycheck taxes.
Frequently asked questions
-
How does Illinois tax regular wages?
Illinois withholds a flat 4.95% on taxable wages. The calculator matches 2025 withholding tables.
-
Are bonuses taxed differently in Illinois?
Illinois employers typically withhold bonuses at 4.95% when using the supplemental method. Switch to the bonus tax page for examples.
-
Which cities in Illinois carry local income taxes?
We currently model local taxes for Chicago, IL and Springfield, IL. Choose one from the menu to include the local surcharge.
-
Can I use these numbers for tax filing?
These results are for planning payroll withholding. Always review your W-2 and consult a tax professional before filing your annual return.
More IL paycheck tools
City-specific paycheck pages
Illinois 2025 single filer brackets
These thresholds help you understand how much of your income falls into each tax band.
| Bracket | Starts at | Rate |
|---|---|---|
| 1 | $0 | 4.95% |