Illinois Tax Calculator 2026
Estimate your federal and Illinois state taxes for the 2026 tax year.
Pre-configured for Illinois residents, 2026 tax year. Filing your 2025 return? Illinois Tax Calculator 2025
Your numbers
Pre-tax contributions
$2,200 federal Child Tax Credit each, applied to your 2026 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.
$58,025 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 $58,900 of taxable income fills the 2026 brackets.
Understanding Illinois Income Taxes
Residents of Illinois pay state income tax on top of federal taxes. 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). The amount you owe depends on your taxable income, filing status, and the deductions and credits Illinois allows.
Key Takeaways for 2026
- Federal tax brackets and standard deductions have been adjusted for inflation under IRS Rev. Proc. 2025-32.
- Illinois's own rates and enacted 2026 changes 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 2026 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
Can't find the exact calculator you need?
Describe it in one sentence — get a working, math-verified calculator in seconds. Free, no signup.
Build your own calculatorRelated Calculators
Frequently Asked Questions
What is the Illinois state income tax rate for 2026?
Illinois has a flat 4.95% state income tax for the 2026 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 ($2,925 single / $5,850 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 $3,568 in Illinois state income tax for a single filer taking the standard deduction in 2026. Add about $7,670 of federal income tax and $5,738 of FICA (7.65%), for total taxes near $16,975 and take-home around $58,025. Credits and other income can change this.
What percentage of your paycheck goes to taxes in Illinois?
About 22.6% for a single filer earning $75,000 in 2026: federal income tax (~10.2%), 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.