Illinois Income Tax Guide for 2025

Overview

Illinois has a flat income tax rate of 4.95%. Capital gains are taxed as ordinary income. The state offers personal exemptions of $2,850 and dependent exemptions of $2,850.

Income Tax Rates

Single Filers

Income RangeTax Rate
All income4.95%

Married Filing Jointly

Income RangeTax Rate
All income4.95%

Capital Gains Tax

Capital gains are taxed at the same rates as ordinary income.

Deductions & Exemptions

TypeAmount
Personal Exemption (Single)$2,850
Personal Exemption (Married)$5,700
Dependent Exemption$2,850

Additional Information

  • Uses exemption system instead of standard deduction

Charts

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Last updated: November 12, 2025

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