Mercer County, IL tax sales
Tax Sale Atlas maps the Mercer County, IL tax sale, one of 2,553 counties in 30 states. Illinois sells tax lien certificates paying up to 9%. Sale office, calendar and list locations read from the county’s own official pages on Jul 30, 2026.
How tax lien and tax deed sales work in Mercer County, seat of Aledo: sale calendar, auction platform, over-the-counter lists, and the offices that run each sale.
New to tax sales? Read how Illinois tax sales work or look terms up in the glossary.
- Next sale
- Within 120 days after the court order authorizing the auction.
- Format
- In person
On this page
How Mercer County sells delinquent taxes
Tax certificate sale (lien)
- Run by
- Mercer County Treasurer, serving as ex officio Mercer County Collector (Treasurer Bev Lower). The Mercer County Clerk handles check-in payments alongside the Collector at the sale.
- Frequency
- annual
- Typical timing
- Early November, held immediately after Henry County's sale on the same morning.
When it runs
Registration and deposit
Register in advance with the Mercer County Treasurer using the tax sale registration form posted on the Treasurer's page. The county lists the cost as "$100 FOR REGISTRATION $100 FOR LIST OF PROPERTIES TO BE SOLD." The buyer letter states "The registration must be accompanied by a registration fee of $100.00 which, $100.00 will be applied to your purchases at the tax sale" and "The deposit will be forfeited if the registrant does not attend the sale nor does not purchase taxes." The list fee is separate: "The fee for the list is $100.00 and is not a part of the registration fee. The list will be e-mailed to you from the office of Joe Meyers & Assoc. and will be updated by them as we get closer to the actual sale date." At check-in, "The County Clerk/Collector will take a blank check made out to Mercer County Collector." Two cautions: the buyer letter's registration cutoff sentence is cut off mid-date on the county page (it reads "before or on October" with no day), and the registration form download link on that page was not resolving when checked on July 30, 2026. Confirm both the cutoff date and get the form directly from the Treasurer's office.
Sale format and venue
Tax deed sale
- Run by
- Sheriff or a court-appointed private selling officer, under an order of the circuit court. A county acting as trustee runs its own tax deed auctions.
- Frequency
- as ordered by the circuit court
- Typical timing
- Within 120 days after the court order authorizing the auction.
When it runs
Registration and deposit
Terms of a judicial tax deed auction, including whether it runs online, in person, or both, and what deposit is required, are set in the court's order and published in the notice of tax deed auction. That notice runs once a week for 3 consecutive weeks, starting no more than 45 days and ending no less than 7 days before the auction. Read the notice for each parcel; there is no statewide platform or standing bidder registration.
Sale format and venue
Mercer County tax sale list and auction calendar
For Mercer County tax sale 2026 searches, use the county-run sources below rather than a copied parcel list, and confirm the parcel, registration cutoff, deposit, and payment deadline against the county before you bid. If the parcels on this list are vacant land rather than houses, what buying land at a tax sale hands you is the place to start.
Get the advertised list
Use Treasurer annual tax sale notice, tax buyer letter, and fees for the current advertised parcels, then recheck it before the auction.Register to bid
Ask the county office how and when to register; many counties close registration days or weeks before the sale.Sale day
Within 120 days after the court order authorizing the auction. The sale is live and in person; there is no online bidding platform. Confirm the venue and hour with the county office before you go.Confirm with the office
If the list, platform, and notice disagree, use Sheriff or a court-appointed private selling officer, under an order of the circuit court. A county acting as trustee runs its own tax deed auctions. as the source to confirm which parcels are actually offered.
Before you bid in Mercer County
4 checks
Start with the live sale list
Pull the current advertised parcels from Treasurer annual tax sale notice, tax buyer letter, and fees. Lists can change before the sale, so recheck the county source before you price a parcel.Confirm registration and deposit
Terms of a judicial tax deed auction, including whether it runs online, in person, or both, and what deposit is required, are set in the court's order and published in the notice of tax deed auction. That notice runs once a week for 3 consecutive weeks, starting no more than 45 days and ending no less than 7 days before the auction. Read the notice for each parcel; there is no statewide platform or standing bidder registration.
Check the state rules that change the bid
Read the Illinois due-diligence checklist before bidding. Redemption, liens that survive a tax deed, title cleanup, and payment deadlines can change what a parcel is worth. Which liens survive is state law, so read what survives a tax deed in Illinois before you price the title work.Set a walk-away number
Work out what the parcel is actually worth with the rural land value estimator, then turn it into a ceiling with the tax deed max-bid calculator.
Over-the-counter (leftover) purchases
unsold liens and deeds
Certificates nobody bids on at the annual sale are forfeited to the county as trustee for the taxing districts. The county may then assign a forfeited certificate to any party or sell property it has acquired, which many counties handle through a delinquent tax agent rather than a public counter. Counties may also offer county-held certificates at a scavenger sale with a minimum bid of $250, or half the tax when total liability is under $500. Ask the county collector and the county clerk which program the county runs and who may buy.
New to this path? Read how over-the-counter certificates work. Every state has its own name for what goes unsold, so check what Illinois calls its leftover tax-sale inventory.
Use the arrow keys to switch between these sections.
County offices
Tax Collector (runs the certificate sale)
Mercer County Treasurer and County Collector
100 SE Third Street, Aledo, IL 61231
Official websiteCounty notes
- Mercer County's annual tax sale is physically held in another county: the Henry County Courthouse in Cambridge, Illinois, following Henry County's own sale that starts at 10 a.m.
- Bidding is in person through Joseph E. Meyer & Associates' R.A.M.S. 2 system, where registered buyers bring a flash drive holding their rate bids. There is no online bidding site for this sale.
- Registration costs $100 and is credited toward purchases, but is forfeited if the registrant does not attend or buys nothing. The parcel list is a separate $100 and is emailed by Joseph E. Meyer & Associates.
- Bring a blank check made payable to Mercer County Collector for check-in; the County Clerk and Collector collect it together.
- The Treasurer states she will object in court to a motion for sale in error if the buyer purchased back taxes that had a prior sale in error, and cites 35 ILCS 200/21-310 grounds where no interest is paid.
- The county also points investors to a separate trustee silent auction at iltaxsale.com with $5 property booklets, but the dates shown on the county page are from an earlier year.
- The registration form link on the Treasurer's page was not resolving on July 30, 2026, and the buyer letter's registration cutoff sentence is cut off mid-date, so confirm both with the office at (309) 582-2524.
Illinois rules
- Redemption
- Property sold at an Illinois tax sale may be redeemed at any time before the redemption period expires. Public Act 104-0553 set the standard period at 3 years from the date of sale for tax certificates issued on or after July 10, 2026. Certificates issued between January 1, 2024 and July 9, 2026 run on the earlier 2.5 year (30 month) track, and on that track the certificate holder could file a written notice with the county clerk extending redemption to a date no later than 3 years from the sale. A short 1 year period applies when the parcel was, on the date of sale, vacant non-farm property, commercial or industrial property, or improved with a structure holding 7 or more residential units. Certificates the county holds or assigns as trustee run on their own schedule under Section 21-385, and an assignee must file notice within 60 days of assignment setting a redemption deadline no later than 3 years from the assignment.
- Deed deposit
- Illinois does not fix a statutory deposit percentage. Deposit and payment terms are set in the court's order authorizing the auction and by the selling officer, so read the notice of tax deed auction for each sale. A purchaser who fails to complete the sale forfeits any deposit already made to the county surplus equity fund, and the court orders a new auction of the property.
- Surplus proceeds
- Any amount by which the winning bid exceeds the minimum bid is surplus. Within 30 days after the court confirms the sale the selling officer deposits the surplus with the county treasurer, who notifies everyone who received the Section 22-10 take notice that the owner at the time of the sale may file a claim for it. A county running its own tax deed auction deposits surplus with the treasurer within 30 days of the sale and notifies interested parties within 60 days. Separately, a previous owner who lost equity through a tax deed can claim an award from the county surplus equity fund, capped at the value of the property when the deed issued less mortgages, liens, and the taxes the purchaser paid.
A tax deed does not convey marketable title. Most buyers file a quiet title action before they can resell or insure the property. See the due diligence guide.
Frequently asked questions
Does Mercer County, Illinois sell tax liens or tax deeds?
When is the Mercer County tax certificate sale?
How often does Mercer County hold tax deed sales?
I own a property in this sale. Can I stop it?
Where can I find the Mercer County tax sale list?
Verified Jul 30, 2026 against official county and state sources.
Tax Sale Atlas publishes educational information about public tax sale processes. This is not legal, financial, or investment advice. Rules, dates, and fees change; confirm with the county office before you bid.
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