Summit County, CO tax sales

County offices

County notes

• •The Treasurer's tax lien page points bidders to GovEase, an online auction platform, for registration and bidding, so the sale is not run as a walk-in courthouse auction.
• •The delinquent list page posts dated spreadsheets covering real property, personal property, mobile homes, and active tax liens, and the files are refreshed during the year.
• •The same office serves as both Treasurer and Public Trustee and handles Treasurer's Deed applications on matured certificates.
• •Property tax due dates published by the Treasurer are February 28 for the first half, June 15 for the second half, and April 30 for a single full payment.
• •The county mailing address for Treasurer correspondence is PO Box 289; a different PO Box appears in the general county website footer, so use PO Box 289 for Treasurer and tax lien matters.

Colorado rules

Max interest rate

14% per year, set by statute (bidding is on price)Colorado Division of Banking - Interest Rates set by the Bank Commissioner (rate set under C.R.S. 39-12-103)Verified Jul 29, 2026

Minimum return

No statutory minimum return; what you earn is set by the price at the saleC.R.S. 39-12-103 - Redemption made, interestC.R.S. 39-12-103Verified Jul 29, 2026

Redemption

Redemption may be made at any time before a treasurer's deed is executed, so the practical window runs well past the three-year mark and through the Article 11.5 auction process. The treasurer must hold that public auction between 110 and 125 calendar days after the known interested party notice is first published or mailed, which gives owners and junior lienors a further defined period to pay. A separate rule lets an owner who was under a legal disability when the deed was executed redeem within nine years of the deed being recorded, at 15 percent per year plus the present value of any improvements.C.R.S. 39-12-103 - Redemption made, interestC.R.S. 39-12-103Verified Jul 29, 2026

Deed deposit

The treasurer may require the applying lawful holder to post a deposit covering the recording fee plus the actual and reasonable cost of administering the auction, and all Article 11.5 fees and costs are chargeable as additional amounts owing under the tax lien. For bidders, the treasurer accepts cash, cashier's check, bank check, or electronic funds transfer subject to the treasurer's bidding rules. The statute sets no fixed bidder deposit percentage, so the deposit terms come from county bidding rules.C.R.S. 39-11.5-102 - Application for public auctionC.R.S. 39-11.5-102Verified Jul 29, 2026

Surplus proceeds

Any overbid goes first to junior lienors in order of recording priority, measured as of the recording date of the application for public auction, who filed a notice of intent to redeem and whose liens are unredeemed, up to each lien's unpaid amount plus fees and costs. Whatever remains is paid to the property owner. The treasurer must post a public notice about these funds and mail the owner a notice within thirty calendar days of the auction. Unclaimed remaining overbids sit in escrow for six months without interest, then transfer to the state administrator under the Revised Uniform Unclaimed Property Act. An agreement to pay someone to recover an owner's overbid is unenforceable, and inducing one is a class 2 misdemeanor.C.R.S. 39-11.5-109 - Treatment of an overbidC.R.S. 39-11.5-109Verified Jul 29, 2026

Governing statute

C.R.S. Title 39, Article 11C.R.S. 39-11-115 - To whom tax lien shall be soldC.R.S. 39-11-115Verified Jul 29, 2026

A tax deed does not convey marketable title. Most buyers file a quiet title action before they can resell or insure the property. See the due diligence guide.

See the full Coloradorules and every county →