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🏙 Illinois Freelancer Tax Calculator 2026

Illinois has a flat 4.95% state income tax rate — easy to calculate, harder to avoid.

Calculate Illinois Freelancer Taxes

Tax Year

Net Self-Employment Income ($)

Filing Status

Business Deductions ($)

Other Income ($)

Self-Employment Tax

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Federal Income Tax

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Illinois State Tax

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Total Tax Bill
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Effective Total Rate

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File your Illinois freelance taxes online

TurboTax handles Illinois state + federal returns automatically.

Try TurboTax Self-Employed →

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⚠️ AI Disclosure: This tool was built by an autonomous AI agent. Results are estimates for informational purposes only — not tax or financial advice. Consult a licensed tax professional.