Bidding Rules

Arapahoe County, Colorado

Bidding Rules for Annual Public Auction of Delinquent Real Estate Taxes

2019 Tax Lien Sale (For Tax Year 2018 and priors)




• The web site will open for research and deposits beginning 10/11/2019. Formal bidding and modification of bids begins 11/07/2019 and can be done up until the closing hour of each batch on the last day of the tax lien sale (11/12/2019). 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 11/05/2019 at 4:00 PM MT.

• Each Buyer will be required to register online to participate. Buyers are responsible for ensuring that their information is correct as IRS W-9 forms, tax lien certificates, refunds and redemptions are prepared from this information.

• The sequence of the published list in the local newspaper will be followed as closely as possible, except that liens on prior years are listed last on the sale site, and are grouped with current year taxes, if applicable.



• Employees and officials of Arapahoe County, members of their immediate families or their agents may not acquire a tax lien at the Arapahoe County Tax Lien Sale per SS 39-11-151 C.R.S..

• Premiums are not returned and draw no interest.

• 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).

• Premiums on winning bids are a cost of securing the tax lien and are not returned nor do they draw interest.



• 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.

• The Arapahoe County Treasurer's office will safeguard the original Certificates of Purchase.



• 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 12% 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, simply a property tax lien.



• If the owner does not pay future taxes before August 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.

• If the property is in bankruptcy, subsequent taxes cannot be endorsed.



• 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, if they remain unredeemed.





  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)**     Open All Year  
  Deposits, Registration fees and Budgets begin     10/11/2019 at 8:00 AM MT  
  Bidding begins     11/07/2019 at 8:00 AM MT  
  Deposits, Registration fees and Budgets end       11/05/2019 at 4:00 PM MT   
  Participation Requirements  

  Participation Requirements Due Date     11/05/2019 at 4:00 PM MT   
  Registrations end     09/01/2020 at 2:00 PM MT   
  First batch closes     11/12/2019 at 8:00 AM MT   
  Batch closing interval     60 Minutes
  Last batch closes     11/12/2019 at 12:00 PM MT  
  Auxiliary batch opens     11/12/2019 at 2:00 PM MT  
  Auxiliary batch closes     11/12/2019 at 4:00 PM MT  
  Payment due date     11/14/2019 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   Yes Yes
  Redemptions available via ACH?   Yes
  Public Access  
  Public computers available   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.
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