Tax Lien Sale Information

General Information 

• Our Tax Lien Sale is conducted with the goal of fairness and efficiency in mind. Questions or comments regarding the sale should be directed to RealAuction at 1-877-361-7325 or E-Mailed to customerservice@realauction.com
• An annual Tax Lien Sale is held to collect the unpaid property taxes. These taxes are purchased by investors and become a lien against the property. The investor earns interest on the tax lien against these properties. The interest amount (paid on the tax lien, but not on the premium) is determined September 1st every year and is nine percent above the federal discount rate (rounded up). The amount of the individual tax lien purchased includes the amount of taxes, delinquent interest, advertising, internet auction, and certificate fees. Generally a successful bidder pays a premium price above the tax liens that are sold in order to purchase a tax lien certificate.
• Three weeks prior to the tax sale, a list of the properties that have the potential to go to sale will be available to view at RealAuction. This list is updated daily until the tax sale date.
• It should be noted that the property owner may redeem the property from the tax lien certificate holder at any time subsequent to the tax lien sale and up to the issuance of a Treasurer’s Deed.
• Tax Lien Certificates expire after 15 years.
• Lawful Tax Lien Certificate holders may apply to take the property to a public Treasurer's Deed Auction once they have owned the certificate for a period of three years, redeemed any junior lienors and paid an application fee.
• Per Colorado State Statute C.R.S. 39-11-151, no tax lien shall be sold to county officials or employees or to a member of the immediate family of such individuals.
• Should you have a question regarding other aspects of tax liens, please call the Treasurer’s Office at, (970) 400-3290.

Registration

All potential bidders must register before the sale date which is the official start of the sale. Registration will be made on-line at:  Weld Official Tax Certificate Auction Site. The registration will include the completion of an IRS required W-9 form, as well as ACH depository requirements and acceptance of a “buyer beware” document. Further details of the registration process are available on the website. At the time of registration, you will be asked to complete an ACH authorization, so that when you start your bidding, you will be able to make a deposit of a minimum of 10% of what you plan to spend for tax liens and subsequently so that you can make payments for the tax liens purchased. We encourage you to register as soon as the delinquent property tax list is available as you can then research the properties and make a determination of a bid.

In order to become an investor with Weld County, please fill out INVESTOR REGISTRATION FORM.pdf(PDF, 68KB) . Once completed, this packet can be returned to our office via email, mail, drop box, or in person with payment.

Internet Training Sessions

Every year RealAuction will conduct training sessions which will be posted on the RealAuction site.

Element of Risk

Although The treasurer’s office makes significant effort to be aware of potential problem liens and withhold them from sale, ultimately the sale is a"Buyer Beware Sale"as there is an element of risk inherent in the purchase of tax liens. Please conduct your own investigation in order to reduce the risk. Details of the property are accessible through the auction website.

Lien Redemption

An email will be sent to the investor with a Certificate of Redemption for the redeemed properties and funds are sent via ACH on Friday for the prior weeks redemptions.

What is Tax Lien Endorsement?

Endorsement provides the current tax lien certificate holder the option of endorsing the current year's delinquent tax onto the original tax sale certificate. Subsequent payment of the delinquent tax will earn the same rate of interest as the original certificate.

Colorado Revised Statute, 39-11-119, provides that, a holder of a certificate of purchase may pay subsequent taxes on the property of which the buyer holds an unredeemed certificate, and this payment will be endorsed onto both the original certificate and the tax lien sale record in the treasurer's office.

When am I able to Endorse?

The treasurer’s office will accept subsequent payments of taxes beginning August 1st. Endorsement letters are mailed to all certificate holders approximately the third week of July.

What do I need to do?

After receiving your endorsement list, please notify us as to which certificates you wish to endorse. Personal checks are acceptable.

When can I apply for a Treasurer's Deed?

Since the passing of House Bill 24-1056 on July 1, 2024 the Treasurer's Deed process has changed dramatically. Colorado Revised Statutes 39-11.5-102 (1) "At any time at least three years from the date of sale of a Tax Lien pursuant to article 11 of this title 39, a lawful holder may file an application for a public auction of a Certificate of Option for Treasurer's Deed, for the property subject to the tax lien described in the Certificate of Purchase, held by the lawful holder. In so doing, the lawful holder shall file an application for public auction in a form and manner determined by the Treasurer." 

Real Property Tax Lien Redemption

The Following Information is for the redemption of Tax Liens on Real Property Only

Redemption payment is made to the Weld County Treasurer for the amount of delinquent taxes, delinquent interest, advertising fees, late fees, and any other additional costs incurred during the tax lien process. Payments will only be accepted from the owner of record, their agent, or any other person having a legal or equitable claim against the property at any time prior to a Public Auction of a Certificate of Option for Treasurer's Deed. Tax Lien Redemption payments must be made with Certified Funds (cash, cashier's check, and credit card). If an application for a Treasurer's Deed Public Auction has been accepted by the Treasurer, additional fees may be due upon redemption. 

All Redemption Payments Must Be Made by Cash or Certified Funds

Interest is calculated on a monthly basis, therefore the amount due changes monthly. Postmarks are NOT accepted on a redemption of a tax lien. The amount due must be in our office and processed by the specified due date; usually it is the last business day of the month. Upon payment, the treasurer shall issue a Certificate of Redemption. The certificate includes the legal description of the tract of land redeemed, the date of redemption, and the amount paid.

Delinquent Properties that MAY be subject to a Tax Lien Certificate of Purchase Sale  (list available 4 weeks prior to sale) 

November 6, 2025 Delinquent Property List

May 2025, County Held Lien List(PDF, 343KB)

County held liens are available for purchase. Please contact the Treasurer's Office to confirm the certificates you wish to purchase, are still available before remitting certified funds. Call (970)-400-3290.