2026 state calculator
Illinois Paycheck Calculator 2026
Calculate Illinois take-home pay after federal tax, FICA, deductions, and supported state-specific taxes.
Illinois tax notes
- Illinois uses a flat individual income tax rate, which makes paycheck differences easier to explain than progressive-tax states.
- Most Illinois W-2 workers do not have city wage income tax withheld, so the main state-specific line is Illinois income tax.
- This calculator applies the Illinois flat rate to annualized taxable wages after pre-tax deductions and labels the result as a withholding estimate.
- Actual Illinois paychecks can still differ because of Form IL-W-4 elections, employer benefit setup, year-to-date wages, and payroll rounding.
Calculator entry
Use the main paycheck calculator for Illinois
This Illinois state page is indexed for state-specific notes. The main calculator is the clearest entry point when you want to switch income type, state, W-4 fields, pay frequency, and deductions.
Illinois example paycheck estimates
| Scenario | Biweekly net | Annual net |
|---|---|---|
| $50,000 salary | $1,303 | $33,882 |
| $75,000 salary | $1,985 | $51,620 |
| $100,000 salary | $2,614 | $67,970 |
| $20/hour | $1,060 | $27,548 |
| $30/hour | $1,663 | $43,231 |
Illinois paycheck calculator strategy
Illinois is a strong paycheck-calculator state because the tax story is simple enough to explain but still commercially useful: the state income tax is flat, while federal withholding, FICA, W-4 choices, and pre-tax deductions still drive the paycheck result.
With the default $75,000 salary example, this calculator estimates $51,620 annual take-home pay in Illinois, compared with $55,036 in Texas and $55,036 in Florida. The gap is mainly Illinois wage income tax because Texas and Florida do not have broad state wage income taxes.
How Illinois withholding is modeled
The current Illinois model applies the flat state rate to annualized taxable wages after pre-tax deductions. It does not yet model every Form IL-W-4 allowance edge case, employer-specific year-to-date adjustment, or payroll rounding method, so the result is best used as a planning estimate.
Illinois sources
Common Illinois paycheck questions
How much is taken out of a paycheck in Illinois?
It depends on gross pay, filing status, pay frequency, W-4 entries, deductions, FICA, and Illinois state tax.
Does Illinois have local income tax?
Illinois does not usually require a broad local wage withholding estimate for the priority use case on this page.
Does Illinois have a flat income tax?
Yes. Illinois uses a flat individual income tax rate, so the calculator models Illinois state tax as a flat wage-income estimate after pre-tax deductions.
Why compare Illinois with Texas or Florida?
Texas and Florida do not have broad state wage income taxes, so they are useful comparison states for seeing the effect of Illinois income tax on take-home pay.
Is this a tax return calculator?
No. This is a paycheck withholding estimate, not a final income tax return calculation or tax advice.
What is the support level for Illinois?
Focused estimate: Illinois flat income tax, FICA, W-4, and deductions.