Get the Complete Cook County Tax Auction Guide
⚡ Instant PDF • 9 chapters • 2026 auction season • County-specific
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Annual Tax Sale & Scavenger Sale
Cook County Tax Auction Guide 2026
Illinois — Updated for current auction season
Cook County holds both annual tax sales and biennial scavenger sales. The scavenger sale offers properties with 3+ delinquent tax years (per 35 ILCS 200/21-145) at deeply discounted prices — sometimes as low as $250. This guide covers both sale types, the penalty bid system (up to 18% per 6-month period), post-2024 redemption periods (30 months residential 1-6 unit; 12 months for vacant non-farm, 7+ unit residential, and commercial/industrial), regulatory uncertainty from Tyler v. Hennepin, and the tax deed petition process for Cook County.
What you'll learn
- Upcoming auction dates and registration deadlines
- Step-by-step bidding procedures for your county
- Local legal requirements and deposit amounts
- Redemption period rules and timeline
- Path to clear title after purchase
- Key contacts and official resources
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Contents
- What Are Tax Deed Sales?
- Cook County Market Overview
- Key Dates & Registration
- How to Research Properties Before Bidding
- The Bidding Process: How It Works
- After the Auction: What Happens Next
- Redemption Period & Right of Redemption
- Clearing Title After Purchase
- Key Contacts & Official Resources
Preview
Cook County holds both annual tax sales and biennial scavenger sales. The scavenger sale offers properties with 3+ delinquent tax years (per 35 ILCS 200/21-145) at deeply discounted prices — sometimes as low as $250. This guide covers both sale types, the penalty bid system (up to 18% per 6-month period), post-2024 redemption periods (30 months residential 1-6 unit; 12 months for vacant non-farm, 7+ unit residential, and commercial/industrial), regulatory uncertainty from Tyler v. Hennepin, and the tax deed petition process for Cook County.
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