Bidding Rules


La Plata County Colorado

Bidding Rules for Annual Public Auction of Delinquent Real Estate Taxes

2021 Tax Lien Sale (For Tax Year 2020 and priors)




  • The web site will open for research and deposits beginning 09/29/2021. Formal Bidding and modification of bids begins 09/29/2021 at 8:00 AM MT and can be done up until the auction closes on 11/04/2021 at 12:00 PM MT. More detailed instructions can be found on the FAQ (Frequently Asked Questions) page of this web site and the SUMMARY OF IMPORTANT INFORMATION below.
  • A 10% deposit of your total intended winnings will be required via ACH transfer. Deposits must be completed by 10/29/2021 at 4:00 PM MT.
  • Each Buyer will be required to register online to participate. Buyers are responsible to assure that their information is correct as IRS W-9 forms, tax lien certificates, refunds and redemptions are prepared from this information.


  • Employees and officials of La Plata County, members of their immediate families or their agents may not acquire a tax lien at the La Plata County Tax Lien Sale per C.R.S. 39-11-151.
  • The minimum starting bid for each tax lien certificate is equal to the amount of the unpaid taxes, interest, penalties and fees.
  • Bid increments shall be One dollar ($1.00).
  • Premiums on winning bids are a cost of securing the tax lien and are not returned nor do they draw interest.


  • Each winning bidder shall make a payment of funds sufficient to cover the total amount of the bidder’s winning bids by ACH on the Auction Website no later than Friday, November 5th, 2021, at 4:00 PM (MT).
  • If a winning bidder fails to make such payment by this time, the Treasurer may, in the Treasurer’s sole discretion, award the tax certificates to another bidder or may offer the tax lien for sale in accordance with C.R.S. 39-11-116.
  • If a winning bidder fails to pay the amount due from bidding on sales, the Treasurer may prohibit a person from participating in future sales up to five years [C.R.S. 39-11-116].


  • It is the Buyers’ responsibility to know the quality of the property on which they are paying the taxes and receiving a lien.
  • At the close of the auction, all successful bids are final. No changes in, or cancellation of, liens purchased can be made after the lien is sold.


  • Premiums do not draw interest.
  • When redeemed, your certificate will pay nine points over the Federal Reserve Discount Rate as of September 1st. Certificates will earn 9% for the current year’s sale, except for erroneous sales which will receive two points above the Discount Rate but no lower than 8%.


  • You do not have ownership rights to the property, only a property tax lien.


  • If the owner does not pay future taxes before July 1st each year, you will be notified of the amount due and you may pay them if you wish. Your payment will be endorsed onto your lien and will accrue interest at the same rate as your certificate.


  • The majority of properties are redeemed.
  • A Treasurer’s Deed may be applied for three years after the date of the sale if the tax lien remains unredeemed. A deposit is required to cover expenses.
  • Tax liens expire and are cancelled after 15 years.




  Bidder Accounts  
  Allow foreign bidder registrations     No
  Single simultaneous bidder rule     No
  Auction Information  
  Bidding style     Proxy Bid Auction
  0 value bids use proxy system     No
  Allow sub-accounts     No
  Automatic certificate rollup / rollup fee   --- ---
  Auction Dates and Times  
  Registration begins (site opens)**     09/29/2021 at 8:00 AM MT  
  Deposits, Registration fees and Budgets begin     09/29/2021 at 8:00 AM MT  
  Bidding begins     09/29/2021 at 8:00 AM MT  
  Deposits, Registration fees and Budgets end       10/29/2021 at 4:00 PM MT   
  Participation Requirements  

  Submit a deposit  
  Enter ACH Redemption Information  

  Participation Requirements Due Date     10/29/2021 at 4:00 PM MT   
  Registrations end     10/29/2021 at 4:00 PM MT   
  First batch closes     11/04/2021 at 12:00 PM MT   
  Batch closing interval     One Batch Only
  Last batch closes     11/04/2021 at 12:00 PM MT  
  Auxiliary batch opens     11/04/2021 at 1:00 PM MT  
  Auxiliary batch closes     11/04/2021 at 4:00 PM MT  
  Payment due date     11/05/2021 at 4:00 PM MT   
  Budget, Deposit and Payment Information    
  Deposit or Budget required (% of estimated winnings)     10%
  Minimum deposit amount     $0.00
  Registration Fee     $0.00
  Registration Fee Refundable      No
  Registration Fee Applied to Winnings      No
  Deposit / Payment types acceptable:   Deposits Payments
      Budget    No ---
      ACH    Yes Yes
      ACH auto-debit final payment    --- No
      Wire transfers   No No
      Counter payments   No No
  Redemptions available via ACH?   Yes
  Public Access  
  Public computers available   La Plata County Treasurer's Office
  ** Subject to change. The site will open when approved by the County.  


For an explanation of any of the terms above, please visit the FAQs.
Loading State Data...

Tooltip Help Management

If you are already familiar with our system, you may disable tooltips.

Disable tooltips just for this page.
Disable tooltips site-wide.