Bidding Rules

Bidding Rules

Summary of Important Dates



Bidding Rules - 2021 Grand County Tax Certificate Auction


In accordance with §39-11-115 (2) (c) and (d), C.R.S., minimum bids and bid increase increments are as follows:

Minimum bids: The minimum starting bid for each tax lien is equal to the amount of the unpaid taxes, interest, penalties, and fees (the tax lien face value).

Bid increments: Bid increments shall be one dollar ($1.00). Tax liens are awarded to the highest bidder, or in the event of a tie, the winner will be selected at random by the Auction Website, and the winning bid amount will equal the amount of the tie bid.

Tax liens will be grouped into batches and sold in increments of 60 minutes starting on 11/04/2021 at 9:00 AM MT and concluding on 11/04/2021 4:00 PM MT. Tax liens in each batch will be identified with a closing time.

Bids may be made starting 10/01/2021 at 8:00 AM MT. Bids will be accepted for each tax lien until the batch containing it closes. The Auction Website stores the bids for each tax lien until the batch containing it closes. Prior to the closing of the batch, bidders may change or withdraw their bids. Once a batch closes, the bids become final and may not be changed or withdrawn.

Each winning bidder shall make a deposit of funds sufficient to cover the total amount of the bidder’s winning bids on the Auction Website no later than 11/05/2021 at 2:00 PM MT. If a winning bidder fails to make such a deposit by this time, the Treasurer may, in the Treasurer’s sole discretion, award the tax liens to another bidder or may offer the tax lien for sale. The Treasurer may prohibit a person, who fails to pay the amount due from bidding, from participating in any tax lien sales for up to five years in accordance with § 39-11-116, C.R.S.

The certificate of purchase issued on a successful bid will show the legal description, purchase amount, and buyer’s name (as entered in registration), interest rate, and date of sale. Certificate of purchase will be held in our office electronically. This will enable us to process your redemptions and to endorse subsequent tax years.

Redemption interest is 9% per annum.

Employees and officials of Grand County, and members of their families are not allowed to purchase at the Public Auction.


  • Those investing in tax liens do so at their own risk and are advised to exercise due diligence in carefully analyzing which tax liens to bid on. There are no guarantees expressed or implied regarding whether a tax lien will prove to be a profitable investment.)

  • The property information accessible on the bid pages was obtained from the Assessor’s office prior to the start of the current auction and is for reference only (please note that this property information, provided by the Assessor’s office, represents the most current assessment year, not the tax year associated with this tax lien sale, as taxes are paid one year in arrears). It is the buyer’s responsibility to research auction items thoroughly prior to placing bids.


Summary of Important Dates


  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)**     10/01/2021 at 8:00 AM MT  
  Deposits, Registration fees and Budgets begin     10/01/2021 at 8:00 AM MT  
  Bidding begins     10/01/2021 at 8:00 AM MT  
  Deposits, Registration fees and Budgets end       10/28/2021 at 2:00 PM MT   
  Participation Requirements  

  Participation Requirements Due Date     10/28/2021 at 2:00 PM MT   
  Registrations end     10/28/2021 at 2:00 PM MT   
  First batch closes     11/04/2021 at 9:00 AM MT   
  Batch closing interval     60 minutes
  Last batch closes     11/04/2021 at 4:00 PM MT  
  Auxiliary batch opens     N/A  
  Auxiliary batch closes     N/A  
  Payment due date     11/05/2021 at 2:00 PM MT   
  Budget, Deposit and Payment Information    
  Deposit or Budget required (% of estimated winnings)     10%
  Minimum deposit amount     $10.00
  Registration Fee     $0.00
  Registration Fee Refundable      Yes
  Registration Fee Applied to Winnings      Yes
  Deposit / Payment types acceptable:   Deposits Payments
      Budget    No ---
      ACH    Yes No
      ACH auto-debit final payment    --- Yes
      Wire transfers   No No
      Counter payments   No No
  Redemptions available via ACH?   No
  Public Access  
  Public computers available   N/A
  ** 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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