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Illinois Paycheck Tax Calculator

Estimate take-home pay and employee taxes for Illinois. Enter your pay details to get a line-by-line breakdown.

Illinois Paycheck

Calculate this paycheck

How often are you paid?
How are you paid?
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Any overtime?
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Federal withholding
State-specific questions Only the inputs required for Illinois appear here.
State adjustments
Optional extra state amount per paycheck.
Pre-tax deductions
Retirement
Take home
Employee taxes
Employer taxes
Earnings $2,000.00
Taxes −$408.15
Federal Income Tax −$156.15
Social Security −$124.00
Medicare −$29.00
IL State Income Tax −$99.00
Take Home $1,591.85
Employer cost breakdown
Gross pay $2,000.00
Employer Social Security +$124.00
Employer Medicare +$29.00
FUTA +$120.00
IL UI Contribution +$0.00
Total employer cost $2,273.00
Line Who pays Rate Wage base
IL State Income Tax
Flat 4.95% Illinois state withholding from the current state-tax model.
 Employee 4.95% No cap
IL UI Contribution
Illinois unemployment insurance is employer-paid. The exact 2026 contribution depends on the employer's IDES annual contribution-rate notice, state experience factor, and 2026 taxable wage base, so the calculator must capture the employer's assigned Illinois UI rate for an exact amount.
 Employer User supplied No cap
Some state or local tax rules for this jurisdiction are still partial and may require user-entered rates or manual review. Some employer-side state taxes depend on employer size, assigned unemployment rates, or program elections. Review the line notes before relying on those totals. Some state-specific lines need additional answers before the calculator can resolve all applicable rates: EmployerAssignedRatePercent, EmployerTaxableWageBase.

This calculator provides estimates for informational purposes only and does not constitute tax, legal, or financial advice. Rates and rules change frequently — confirm with official sources before making payroll decisions.