St. Clair County Tax Sale Information

St. Clair County, Illinois will host an upcoming Trustee Tax Deed and Mobile Home Sealed Bid Auction on July 31, 2026. The auction connects buyers with tax deed foreclosed real estate and mobile home opportunities through online bids or sealed written bids. The sale location lists Andrew Lopinot, Treasurer, at the St. Clair County Courthouse, #10 Public Square, Belleville, IL 62220.

This St. Clair County tax deed auction does not use live verbal bidding. Buyers must submit a bid online or deliver a completed sealed bid form with payment by the last day to bid. Review the catalog, sale notices, terms, and parcel details before bidding.

Key Auction Details:

• County: St. Clair County, Illinois
• Auction Date: July 31, 2026
• Auction Type: Real Estate / Mobile Home – Sealed Bid
• Location: St. Clair County Courthouse, #10 Public Square, Belleville, IL 62220
• Office Hours: 8:30 a.m. – 4:30 p.m. Central Time
• Minimum Bid: $786.00 for the listed real estate/mobile home sale
• Digital Catalog: $15.00
• Online Bid Site: www.iltaxsalebids.com
• Auction Information Site: www.iltaxsale.com
• County Website: https://www.co.st-clair.il.us/
• Removed Items: 0726156, 0726299, 0726318, 0726343, 0726347, 0726351

Important Note:

This calendar listing covers the St. Clair County Trustee tax deed and mobile home sealed bid auction. St. Clair County also runs a separate annual delinquent tax lien sale through the Treasurer’s Office, usually near the end of the tax cycle. Always confirm which sale you plan to attend before bidding.

Terms of Sale:

St. Clair County will accept only online bids or sealed written bids for this auction. The county will not conduct verbal bidding.

For real estate sealed bids, bidders must submit the Binding Purchase Contract / Sealed Bid form and include full payment with the bid. Accepted written-bid payment methods include personal check, cashier’s check, money order, or bank draft. The payment must name COUNTY TRUSTEE as payee.

For mobile home sealed bids, bidders must include certified funds. Accepted payment methods include cashier’s check, money order, or bank draft. The mobile home sale does not transfer the land under the mobile home.

The highest bidder wins the property or mobile home. If two or more bidders submit the same winning bid, auction staff will contact those bidders with further bidding instructions. The office returns payments to unsuccessful sealed-bid participants.

Online bidders must create an account or log in at www.iltaxsalebids.com. Online bidders should verify the item number, property details, buyer names, bid amount, and terms before submitting. The name and address entered on the contract and deed become final after submission.

If an online bidder wins, auction staff will send payment instructions by email. The winning online bidder must submit full payment within seven days. If the bidder misses that payment window, the auction may reject the bid and move to the next highest bidder.

All properties and mobile homes sell “as is.” Bidders should inspect each parcel or mobile home, confirm access, check title concerns, review municipal liens, verify property condition, and contact the correct local offices before bidding. The county makes no guarantee about title quality, property condition, future use, building or repair permits, demolition matters, liens, or code enforcement issues.

For real estate, the seller expects to quitclaim its interest about 90 days after receipt of full payment. The purchaser may not take possession, enter the property, remove personal property, or change the property before the deed records.

For mobile homes, buyers must verify the VIN within 30 days of the sale. Buyers must also handle any required title, tenancy, relocation, and registration steps. If the mobile home sits in a manufactured home community, the buyer must qualify for tenancy or remove the mobile home within the required time period.

How to Participate:

1. Review the St. Clair County auction page at www.iltaxsale.com.
2. Purchase or review the digital catalog if needed.
3. Study the Sale Notices, Terms & Conditions, and Sealed Bid Form.
4. Inspect the property or mobile home before bidding.
5. Decide your maximum bid before you submit it.
6. Submit an online bid at www.iltaxsalebids.com, or deliver a sealed written bid to the Treasurer’s office.
7. Include full payment with each sealed written bid.
8. Place each written bid and payment in its own sealed envelope.
9. Mark the envelope with “SEALED BID” and the item number.
10. Make sure the Treasurer receives the bid by the last day to bid. A postmark does not count if the office receives the bid late.
11. Watch for auction results and payment instructions after the bidding period ends.

Here are some links you might need for the St. Clair County, Illinois, Tax Deed Auction:

• St. Clair County Tax Sale Information Link 
• St. Clair County Treasurer’s Office
• St. Clair County In-Person Auction Site
• How to Profit from Illinois’s Tax Lien Sales
• Learn How Does Tax Lien Investing Work
• Want to get started with Tax Liens? Click Here!
• Is Illinois the best place to profit from tax lien certificates?

The St. Clair County, Illinois tax deed auction gives investors and buyers a way to bid on tax deed foreclosed real estate and mobile homes through a sealed bid process. Buyers can research parcels, compare minimum bids, review the catalog, and submit a bid without attending a live auction room.

This sale may interest investors who understand Illinois tax deed auctions, county trustee property sales, sealed bid real estate auctions, and mobile home purchase rules. The auction also allows bidders to set their highest offer in advance, which can help buyers stay disciplined during property research.

Complete your due diligence before bidding. Check the parcel, title, taxes, municipal issues, access, occupancy, land-use rules, utilities, and physical condition. Submit your bid early enough for the Treasurer’s office or online bidding platform to receive it on time, and prepare payment before the deadline.

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