Delinquent Taxes and Tax Lien Sale

Beginning in early to mid-October, this year’s Tax Lien Sale Files will be available to view.

For Property Owners


The online sale of Arapahoe County delinquent tax liens will be held November 4-6, 2020.  

Please note that delinquent real estate tax payments must be received in the Treasurer's Office by Noon MST the day prior to commencement of bidding and will not be accepted after that time without redemption interest. Cleared funds (cash, cashier’s check, certified check, or money order) are required for tax payments made after September 30, 2020.

Parcels with unpaid amortized special assessment installments at time of tax lien sale will have all future installments brought forward and become due. 

For Tax Lien Buyers (Bidders)


Bidding for the 2020 Tax Lien Sale will begin at 8:00am on November 4, 2020 and will close in batches starting at 8:00am on November 6, 2020.

The Tax Lien Sale Site is open for registration year-round, and will be open for research and deposits at 8:00am on October 7, 2020. Deposits will be accepted until 4:00pm on November 2, 2020. 

View Tax Sale Information for detailed instructions on how the online tax lien sale works.

Please note that any parcel with an unpaid amortized special assessment installment will have all future installments brought forward and become part of the total lien amount.