Illinois Total Tax Burden Comparison
Compare Illinois's total tax burden with other states. See income tax, property tax, and sales tax differences. Illinois has a flat 4.95% income tax.
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Illinois Total Annual Tax
Estimated • Based on your inputs
Effective Total Tax Rate
13.77%
Detailed Breakdown
Disclaimer: This calculator provides estimates for informational purposes only. Results should not be considered financial, tax, or legal advice. Consult a qualified professional for your specific situation.
How This Calculator Works
Calculation methodology and assumptions
Estimates total tax burden in Illinois by combining state income tax (a flat 4.95% income tax, computed using Illinois's actual progressive brackets rather than a flat approximation), property tax (effective rate 1.88%), and sales tax (6.25%). Federal income tax is estimated using 2026 brackets. Tax burden = state income tax + property tax + sales tax estimate. This is a simplified model — actual taxes depend on deductions, credits, and local rates.
Key State Information
Illinois tax overview: Illinois uses a flat 4.95% income tax rate. Property tax: 1.88% effective rate. Sales tax: 6.25% (up to 11.0% with local).
Example Calculation
How does Illinois's tax burden compare for a typical household?
Consider a household earning $85,000/year that owns a $299,000 home (Illinois's median) and spends about $30,000/year on taxable purchases. Federal income tax (2026 brackets) plus FICA comes to roughly $16,373. Illinois's flat 4.95% income tax adds about $4,208. Property tax at 1.88% adds $5,621/year, and sales tax at 6.25% on taxable spending adds roughly $1,875/year.
Result: Total estimated tax burden: approximately $28,076/year, or about 33.0% of gross income (24.2% from income taxes and FICA alone). The total effective tax rate varies dramatically by state — no-income-tax states can run 10+ percentage points lower than high-tax states at the same income, a difference worth thousands of dollars a year.
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StateCalc Team
Editorial Team
The StateCalc team builds free financial calculators using data from official government sources including the IRS, U.S. Census Bureau, BLS, and state revenue departments. All formulas are validated by an automated test suite and cross-referenced against published data.
Our editorial standardsFrequently Asked Questions
Is Illinois a tax-friendly state?
Illinois has a total tax burden that is near the national average when combining income, property, and sales taxes.
What are Illinois's tax rates?
Illinois income tax: a flat 4.95% income tax. Property tax: 1.88% effective rate (on a $299,000 home = $5,621/year). Sales tax: 6.25%.
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