Illinois uses a 4.95% flat state income tax—the same rate applies whether you earn $30,000 or $300,000. Calculate your real take-home pay in Illinois based on hourly wage, salary, federal tax, and FICA.
Default preview shows $25/hour at 40 hours/week. Enter your wage to personalize.
Quick reference for popular hourly wages and what they translate to as salary after tax in Illinois—using the state's flat 4.95% rate.
At $15/hour, full-time workers in Illinois earn about $31,200/year before taxes. After federal, FICA, and Illinois' 4.95% flat tax, take-home is meaningfully lower than in no-tax states like Texas, but cost of living outside Chicago is moderate.
$20/hour clears around $2,780/month after taxes for a typical Illinois single filer. In Aurora, Joliet, Rockford, or downstate cities this often supports stable rent; Chicago can feel tighter due to higher housing costs.
$25/hour after tax in Illinois typically yields about $3,430/month take-home—comfortable across most of the state. Chicago and the wealthier suburbs feel tighter, especially when high property taxes show up in rent or homeownership math.
At $30/hour, after-tax monthly pay in Illinois sits near $4,080. The flat tax keeps the marginal hit predictable; property tax is the bigger budget consideration for homeowners.
$40/hour gives Illinois earners roughly $5,200/month after tax. Because Illinois uses a flat rate rather than progressive brackets, take-home doesn't get squeezed at higher incomes the way it does in California or New York.
Estimates use single-filer assumptions and Illinois' flat 4.95% state income tax with the federal standard deduction—your withholding may differ.
$25/hour in Illinois usually lands in a practical middle band: manageable in much of the state, tighter in Chicago and some collar counties where housing and transportation costs are higher.
Chicago pricing is meaningfully above most of Illinois, especially near transit-rich neighborhoods and job centers. Downstate metros like Peoria, Decatur, and Champaign often offer lower housing pressure.
Illinois' 4.95% flat tax makes paycheck withholding predictable, but county-level property tax can dominate ownership costs and even raise rents in some suburbs.
Chicago's CTA and Metra can reduce car dependence, while most suburban and downstate households rely on driving, adding fuel and insurance to monthly fixed costs.
$25/hour stretches further in Springfield, Bloomington, and Rockford than in Chicago's North Side or high-tax suburban districts. County and school-district costs strongly shape affordability.
Illinois is distinct from most large states because paycheck tax rates are straightforward, while housing-related taxes are where many households feel the bigger long-term impact.
Illinois applies one 4.95% state rate across income levels, so pay raise estimates and side-income planning are easier than in multi-bracket states.
Because the state percentage does not climb with income, many middle-income workers can forecast take-home with fewer surprises when salary changes.
For buyers, property tax and municipal costs often matter more than wage withholding, especially when comparing Chicago suburbs versus lower-tax downstate areas.
A side-by-side view of how Illinois stacks up against high-tax and no-tax states for the same gross pay.
| State | Take-home pay | Notes |
|---|---|---|
| Illinois | Mid | 4.95% flat state income tax. Property tax among highest in US. |
| California | Lower | Progressive state income tax + SDI reduce net pay. |
| New York | Lower | State and (in NYC) local income taxes apply. |
| Texas | Higher | No state income tax. Property and sales taxes vary. |
| Florida | Higher | No state income tax. Sales tax structure differs from Illinois. |
On a $70,000 salary, many Chicago renters spend 30–40% of take-home on housing. Outside Chicago—Aurora, Joliet, Rockford, Peoria, Champaign—the same income usually lands closer to 25–30% on rent and leaves more room for savings.
Compare housing costs in your situation with the rent vs buy calculator—useful before signing a lease in Chicago or buying in the suburbs where property tax weighs heavily.
Designed for Illinois readers comparing flat-tax paycheck math with county-level housing costs.
Illinois uses a flat 4.95% state income tax for individuals. Unlike progressive systems, the state percentage does not rise as income increases.
No broad resident wage income tax is imposed by Chicago. Workers still pay federal taxes, FICA, and Illinois state income tax, plus local taxes that show up elsewhere in household spending.
County-level property tax rates, school districts, and local demand can create major monthly cost differences. In many Illinois markets, that local housing tax environment matters more than paycheck withholding differences.
At $30/hour × 40 hours/week, gross pay is about $62,400/year. After federal tax, FICA, and Illinois' flat state rate, take-home is often around $4,050–$4,100/month.
Run after-tax estimates for any US state, not just Illinois—our main income calculator.
Open income calculatorCompare the long-term cost of renting and buying in Illinois with your take-home pay in mind—especially given high property taxes.
Compare rent vs buyIf you do contracting or freelance work in Illinois, see how take-home pay differs versus a W-2 role.
Open 1099 vs W-2 toolHigher taxes
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