Illinois Tax Calculator
Calculate your Illinois state income tax, federal tax, FICA, and take-home pay for 2024
Illinois Tax Calculator
Your annual income after above-the-line deductions
Your tax filing status
Number of additional dependents ($2,375 each)
Leave blank to use standard deduction ($14,600)
Tax Calculation Results
Federal Income Tax
$0$0
$0
0.0%
0.00%
Illinois State Tax
$04.95% (flat rate)
$0
$0
FICA Tax
$06.2% ($0)
1.45% ($0)
7.65%
Calculation includes: Federal income tax (progressive brackets), Illinois state tax (4.95% flat rate), and FICA taxes (7.65%)
Note: This calculator provides estimates for tax year 2024. Consult a tax professional for precise calculations.
Tax Breakdown Analysis
Example Calculations
Example 1: Single Filer
AGI: $40,000
Federal tax: $3,041 (after $14,600 standard deduction)
Illinois tax: $1,862 (after $2,375 personal exemption)
FICA tax: $3,060
Total tax: $7,963
Take-home pay: $32,037
Example 2: Married Filing Jointly
AGI: $75,000
Federal tax: $5,481 (after $29,200 standard deduction)
Illinois tax: $3,477 (after $4,750 exemption)
FICA tax: $5,738
Total tax: $14,696
Take-home pay: $60,304
Illinois Tax Facts
Flat State Tax
4.95% flat rate for all income levels
Personal Exemptions
$2,375 single, $4,750 married
High Income Phase-out
Exemptions phase out at $250K/$500K
Tax Planning Tips
Illinois has no local income taxes
Consider retirement account contributions to reduce AGI
Itemize deductions if they exceed the standard deduction
Property taxes are separate and vary by county
Understanding Illinois Taxes
Illinois State Income Tax
Illinois uses a flat income tax rate of 4.95% for all taxpayers, regardless of income level or filing status. This is simpler than progressive tax systems but means high earners pay the same rate as low earners.
Personal Exemptions
- •Single filers: $2,375
- •Married filing jointly: $4,750
- •Additional dependents: $2,375 each
- •Phase-out for high earners (AGI > $250K/$500K)
Federal Tax Integration
Illinois residents also pay federal income tax with progressive brackets ranging from 10% to 37%, plus FICA taxes for Social Security (6.2%) and Medicare (1.45%).
What's Not Included
- •Local income taxes (Illinois has none)
- •Property taxes (varies by county)
- •Sales taxes
- •Additional Medicare tax for high earners