Illinois Tax Calculator 2025
Estimate your federal and Illinois state taxes for the 2025 tax year.
Pre-configured for Illinois residents, 2025 tax year. Planning ahead? Illinois Tax Calculator 2026 has the new 2026 brackets and enacted rate changes.
Your numbers
Pre-tax contributions
$2,200 federal Child Tax Credit each, applied to your 2025 liability.
Estimate your refund (optional)
Enter what was withheld this year — W-2 box 2 (federal) and box 17 (state) — to compare against your estimated liability.
$57,742 per year, shown per month
of gross income, all taxes
federal + IL on your next dollar
Estimate only, for a single W-2 earner taking the standard deduction. Itemized deductions and most credits beyond the Child Tax Credit aren't modeled.
Only the top slice pays 22%
Federal tax is progressive: each bracket taxes only the income inside it. Here is how your $59,250 of taxable income fills the 2025 brackets.
Understanding Illinois Income Taxes
Residents of Illinois pay state income tax on top of federal taxes. The amount you owe depends on your taxable income, filing status, and the deductions and credits Illinois allows.
Key Takeaways for 2025
- Federal tax brackets and standard deductions have been adjusted for inflation (and raised retroactively by the One Big Beautiful Bill Act).
- Illinois's own rates and exemptions are applied to your state estimate automatically.
- Don't forget FICA taxes (Social Security and Medicare) — they're withheld from your paycheck automatically and included in the take-home figure above.
Go Deeper on Your 2025 Taxes
Federal tax tools
- Federal Income Tax Calculator — brackets, deductions, and your effective rate
- Tax Bracket Calculator — see which bracket your income lands in
- Paycheck Tax Calculator — per-paycheck withholding and take-home
- Marriage Tax Calculator — filing jointly vs. separately
- W-4 Withholding Calculator — is your paycheck withholding on target?
- Estimated Tax Calculator — quarterly 1040-ES vouchers for 1099 income
- 2026 State Tax Changes — every enacted cut, verified
Other state calculators
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Frequently Asked Questions
What is the Illinois state income tax rate for 2025?
Illinois has a flat 4.95% state income tax for the 2025 tax year — every taxpayer pays the same rate regardless of income. Illinois has no standard deduction; instead each filer and dependent gets a $2,850 exemption allowance (2025; $2,925 in 2026), which phases out entirely above $250,000 AGI ($500,000 joint).
How is Illinois state income tax calculated?
Illinois applies its flat 4.95% rate to your income minus Illinois's personal exemption ($2,850 single / $5,700 married filing jointly) — there is no state standard deduction. This calculator applies the latest published Illinois figures automatically.
How much tax will I pay on a $75,000 salary in Illinois?
Roughly $3,571 in Illinois state income tax for a single filer taking the standard deduction in 2025. Add about $7,949 of federal income tax and $5,738 of FICA (7.65%), for total taxes near $17,258 and take-home around $57,742. Credits and other income can change this.
What percentage of your paycheck goes to taxes in Illinois?
About 23.0% for a single filer earning $75,000 in 2025: federal income tax (~10.6%), FICA (7.65%), and Illinois state tax (~4.8%). Your exact percentage depends on income, filing status, and pre-tax contributions like a 401(k).
Does Illinois tax Social Security benefits?
No. Illinois does not tax Social Security benefits.
Does Illinois tax retirement income like 401(k) or pension withdrawals?
Illinois exempts ALL federally qualified retirement income — Social Security, pensions, 401(k) and IRA distributions are fully subtracted from Illinois base income.