Knox County, IN tax sales
How tax lien certificate sales work in Knox County, seat of Vincennes: sale calendar, auction platform, over-the-counter lists, and the offices that run each sale.
Verified Jul 30, 2026 against official county and state sources.
New here? Read how Indiana tax sales work, the difference between a lien and a deed, and redemption periods.
How Knox County sells delinquent taxes
Tax certificate sale (lien)
- Run by
- Knox County Treasurer and Knox County Auditor, with SRI Incorporated administering the sale
- Frequency
- annual
- Typical timing
- October, starting at 10:00 AM local time. The county's posted notice reads "Beginning 10:00 AM Local Time, October 28, 2025" at the "1st Floor of County Courthouse." SRI's Indiana sale calendar lists the next Knox County tax sale for October 7, 2026 at 10:00 AM at the same courthouse location. Confirm the current date with the Treasurer or Auditor before planning around it.
Registration and deposit
Bidders register online with SRI Incorporated at https://sriservices.com/. One registration covers every Indiana county SRI serves, so you register once. Bring the completed registration form and a W-9 with you to the sale, and arrive at least 30 minutes before the 10:00 AM start to receive a bid number. Bidders without internet access may register the morning of the sale. Under IC 6-1.1-24-5.1, a business entity that seeks to register must provide the Knox County Treasurer with a Certificate of Existence or Foreign Registration Statement from the Indiana Secretary of State.
Knox County runs its IC 6-1.1-24 tax lien certificate sale live at the courthouse, not online. The county notice states the auction is held on the 1st floor of the Knox County Courthouse and adds that, at the discretion of local officials, the sale may switch to an electronic sale under IC 6-1.1-24-2(b)(10) at www.zeusauction.com commencing on the same date and time, with location updates posted at sriservices.com before the sale. SRI's calendar still shows the 2026 Knox County sale as in-person, so no online platform is confirmed for this county and the format should be verified with the office. Redemption per the county notice is 110% of the minimum bid if redeemed within six months of the sale, or 115% if redeemed after six months, plus the amount by which the purchase price exceeded the minimum bid, plus 5% per year on taxes and special assessments the certificate holder pays after the sale. The 2025 notice set the redemption period to expire October 28, 2026 for certificates sold at the sale, and February 25, 2026 for certificates struck to the county. The Auditor certifies the delinquent list and handles tax sales and redemptions; the 2025 notice was signed by Auditor Lisa Clark-Benock on September 11, 2025 and covered 397 properties. Caution: Bid4Assets publishes a Knox County listing titled "Live Tax Lien Sale" but the listing itself states Bid4Assets "is providing this notice of sale strictly as a courtesy to our users" and "is not conducting this public auction, nor are we affiliated in any way with this sale." It is not the county's auction platform. Live in-person auction on the 1st floor of the Knox County Courthouse, administered by SRI Incorporated
From lien to deed
Indiana holds no general public tax deed auction. Once the redemption period runs out, the certificate holder files a verified petition in the same court that entered the judgment of sale, and the court directs the county auditor to issue the deed. That petition must be filed no later than three months after the redemption period expires, or the purchaser's lien terminates. One narrow exception exists: real property a county, city, or town executive has certified as vacant or abandoned is auctioned separately, and there the county auditor deeds fee simple title straight to the highest bidder with no right of redemption.
Over-the-counter (leftover) purchases
Parcels that draw no bid at the treasurer's tax sale pass to the county executive, which acquires a lien for the minimum sale price and receives a tax sale certificate. The county executive may then adopt a resolution and offer those certificates at a separate advertised public sale, often called the commissioners' certificate sale, priced below the minimum bid that failed at the tax sale. Notice runs once a week for three consecutive weeks with the final advertisement at least 30 days before the sale. This is a scheduled sale rather than a walk-in list, and redemption on a certificate bought this way is 120 days. Check the county auditor page for the next commissioners' certificate sale date.
New to this path? Read how over-the-counter certificates work.
County offices
Tax Collector (runs the certificate sale)
Notes for Knox County
- The sale is a live, in-person auction at the Knox County Courthouse, 111 N 7th St, Vincennes, beginning at 10:00 AM local time. No standing online bidding platform is confirmed for this county.
- SRI Incorporated administers the sale and handles bidder registration at sriservices.com. A single SRI registration covers every Indiana county SRI serves.
- The county homepage carries the tax sale announcement and links directly to the property list PDF. There is no separate tax sale page on the county site.
- The Auditor's Office handles tax sales and sale redemptions and can be reached at 812-885-2502 at the same courthouse address. Courthouse hours are Monday through Friday, 8:00 AM to 4:00 PM EST.
- The county auditor and treasurer apply for the court judgment roughly three weeks before the sale. In 2025 that filing date was October 8 for an October 28 sale, and any defense had to be filed with the Knox County Circuit Court before the same date.
- Property tax bills in Knox County are due May 10 and November 10 each year.
- The minimum bid includes delinquent taxes and special assessments, taxes due in the year of the sale, all penalties, a $25 postage and publication charge, other direct county costs, and any unpaid costs from a prior tax sale under IC 6-1.1-24-2(c).
Indiana statewide rules
- Redemption
- The standard period is one year after the date of the treasurer's tax sale. Several tracks run 120 days instead: a certificate bought at the county executive's certificate sale, a lien the county executive holds that was never sold on, a sale to a purchasing agency qualified under IC 36-7-17 or IC 36-7-17.1, a certificate the county executive assigns to another political subdivision, and a parcel that was not offered at the tax sale at all. Property on the county auditor's vacant and abandoned list carries no right of redemption after its sale. A county treasurer may also extend redemption by agreement with the owner, in which case the extended period ends one year after the date of that agreement.
- Surplus proceeds
- The treasurer applies the payment first to the taxes, assessments, penalties, and costs in the minimum bid, then to other delinquent property taxes, then deposits the remainder in a tax sale surplus fund. The owner of record at the time the parcel was certified for sale, or the purchaser on a redemption, may file a verified claim against that fund. Unclaimed surplus transfers to the county general fund three years after it was received.
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 Knox County, Indiana sell tax liens or tax deeds?
- Knox County follows Indiana's tax lien state system.
When is the Knox County tax certificate sale?
- October, starting at 10:00 AM local time. The county's posted notice reads "Beginning 10:00 AM Local Time, October 28, 2025" at the "1st Floor of County Courthouse." SRI's Indiana sale calendar lists the next Knox County tax sale for October 7, 2026 at 10:00 AM at the same courthouse location. Confirm the current date with the Treasurer or Auditor before planning around it.. Registration and bidding happen on the county's online platform. Always confirm the exact date with the Tax Collector before the sale.
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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