Illinois Paycheck & Tax Overview
State Income Tax
4.95% flat
Min. Wage (2025)
$14.00/hr
Federal SS Tax
6.2%
Federal Medicare
1.45%
How Illinois Taxes Your Paycheck
Illinois has a flat 4.95% state income tax rate. On top of federal income tax, Illinois residents pay state income tax on their wages. Total deductions include federal income tax, Illinois state income tax, Social Security (6.2%), and Medicare (1.45%).
Federal Taxes Everyone Pays
- Federal Income Tax — Progressive brackets from 10% to 37%. The 2025 standard deduction is $15,000 (single) and $30,000 (married filing jointly).
- Social Security — 6.2% on wages up to $176,100 (2025 wage base).
- Medicare — 1.45% on all wages, plus 0.9% on wages above $200,000.
How to Increase Your Illinois Take-Home Pay
- Maximize 401(k) contributions — Reduces federal and state taxable income. The 2025 limit is $23,500 (under 50) or $31,000 (50+).
- Contribute to an HSA — Pre-tax if you have a high-deductible health plan.
- Review your W-4 — Accurate withholding allowances prevent over- or under-withholding.
Frequently Asked Questions — Illinois Paycheck Calculator
How much of my Illinois paycheck goes to taxes?
For a typical Illinois resident earning $75,000 annually (single filer), expect roughly 22–28% of gross pay toward taxes. Use the calculator above for your exact figure.
Is this calculator accurate for Illinois?
This calculator uses 2025 federal and Illinois state tax rates. It provides estimates — actual withholding depends on your W-4 elections, employer benefits, and additional income. Verify with your employer or a tax professional.
What is Illinois's minimum wage in 2025?
Illinois's minimum wage is $14.00 per hour in 2025.