DuPage County Tax Information

DuPage County will hold its annual Delinquent Property Tax Sale on November 20, 2025, at the DuPage County Administration Building, Auditorium, 421 N. County Farm Road, Wheaton, Illinois 60187. The tax sale will continue on November 21, 2025, if necessary. Registered tax buyers must attend in person and submit their bids using a USB drive under the new R.A.M.S. 2 (Randomized Auction Management System) process.

A list of delinquent parcels will be published in local newspapers in October 2025. The electronically transmitted Tax Sale list will be available for purchase for $250 by registered tax buyers. The sale list includes parcel numbers, assessed owner names, delinquent tax amounts, and other key details.

Key Auction Details

Date: November 20, 2025 (continuing on November 21, if necessary)

Location: DuPage County Administration Building, 421 N. County Farm Road, Wheaton, IL 60187

Time: Buyer check-in begins at 8:00 AM, and the tax sale starts at 9:00 AM

Terms of Sale

Registration: Opens October 1, 2025, and closes October 31, 2025

Deposit Requirement: A $500 deposit is required to participate

Bidding Process: Buyers submit percentage bids via USB drive; parcels go to the lowest bidder, with ties settled randomly

Payment Deadline: All payments, including taxes, interest, and a $104 per parcel fee, must be made via cash or cashier’s check by 3:00 PM on November 21, 2025

How to Participate

Register as a Tax Buyer – Complete registration by October 31, 2025, and submit a W-9 form if not previously provided.

Purchase the Tax Sale List – Available for $250 starting November 13, 2025. Buyers who do not purchase the list will receive only parcel numbers and sale amounts.

Submit Bids via USB Drive – Bring a USB drive with your bids to the sale. The R.A.M.S. 2 system will process bids and determine winners.

Pay for Purchases – You must make all payments, including fees, by 3:00 PM on November 21, 2025. Failure to pay results in cancellation and ineligibility for future sales.

Links you might need for the DuPage County, Illinois, Tax Lien Auction:

• DuPage County Tax Sale Information Link 
• DuPage County Treasurer’s Office
• DuPage 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 DuPage County tax sale is an opportunity to purchase tax liens at competitive interest rates. The bidding process awards tax liens to the lowest bidder, with winning bids typically ranging from 0% to 4%. If a property owner does not redeem the lien within 2 to 2½ years, the tax buyer may petition for a tax deed.

For further details, contact the DuPage County Treasurer’s Office at 630-407-5900.

Sign up or log in to view the full content.