Illinois Tax Guide for Residents
Illinois taxes are... a lot. Here's what residents need to know.
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- budget-focused households
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Editorial Desk
Illinois Community Editorial Desk
Our editorial desk builds Illinois articles to answer practical questions clearly, surface tradeoffs honestly, and send readers toward the next useful step.
Illinois Tax Guide for Residents
Let's be honest: Illinois taxes are significant. Understanding them helps you plan.
Income Tax
State Rate
Illinois has a flat income tax: 4.95% on all income.
Comparison:
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Simpler than progressive systems
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Lower than coastal states on high incomes
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Higher than neighbors (Indiana 3.15%, Wisconsin varies)
Local Income Tax
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No city or county income taxes in Illinois
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(Unlike some states where cities add more)
Filing
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Due April 15 (same as federal)
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E-file through Illinois MyTax
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Most tax software handles state automatically
Property Tax
The Big One
Illinois property taxes are among the nation's highest.
Effective rates (2026):
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State average: ~2.1%
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Some collar counties: 2.5%+
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Cook County varies widely
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Downstate generally lower
How It Works
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County assesses property value
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Apply exemptions (see below)
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Multiply by local tax rate
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Rate is combination of school, village, county, etc.
Key Exemptions
Homeowner Exemption Reduces EAV by $10,000 (Cook County) or $6,000 (elsewhere).
Senior Exemption Additional $8,000 reduction for 65+.
Senior Freeze Freezes assessment (not tax rate) for qualifying seniors.
Appeals
You can (and should consider) appealing:
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Within 30 days of assessment notice
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Compare to similar properties
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Many succeed in reducing assessments
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Professional help available for complex cases
Sales Tax
Base Rates
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State: 6.25%
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Most areas add local taxes
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Total often 9-10%+ in Chicagoland
What's Taxed/Exempt
Exempt:
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Unprepared grocery food
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Prescription medications
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Medical equipment
Taxed:
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Prepared food (restaurants, deli)
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Clothing
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Electronics
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Most retail purchases
The Chicago Premium
Chicago adds additional:
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City tax
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RTA tax
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Various smaller taxes
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Restaurant tax (higher for dine-in)
Vehicle Taxes
Registration
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Annual registration: ~$151 (varies by vehicle)
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No personal property tax on vehicles (unlike Missouri)
City Stickers
Chicago and some suburbs require:
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Chicago city sticker: ~$95/year
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Suburban villages vary
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Tickets for missing sticker are expensive
Other Taxes to Know
Gas Tax
Illinois gas tax is high (38 cents/gallon state + federal + local).
Cannabis Tax
If applicable: 10-25% depending on THC content, plus sales tax.
Estate Tax
Illinois has its own estate tax above $4 million.
Tax Planning Tips
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Max out retirement contributions - Reduces state taxable income
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Review property assessment annually - Appeal if overvalued
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Claim all exemptions - Many people miss homeowner exemption
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Consider a financial advisor - Illinois taxes are complex
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Keep moving/relocation receipts - Some deductions available
Keep Planning
Go deeper with guides
Use these related guides if you want a more complete framework after this article.
Compare Places
Explore related cities
These city pages help you compare local fit, logistics, and nearby options without starting over.
Editorial Transparency
Why trust this page
Published January 29, 2026
- Built around a specific Illinois question or planning need, not filler content written for volume alone.
- Reviewed by Illinois Community Editorial Desk before publication and refreshed when core details materially change.
- Editorial coverage on this page is centered on practical budgeting, local cost tradeoffs, repeatable savings decisions.
- When timing, policy, or event logistics matter, we push readers toward official sources and direct confirmation before they act.
