Colorado · County tax sales & foreclosures
Boulder County, CO Tax Lien Sale November 2026
1 upcoming Boulder County tax sale, 757 parcels on the published list. Every date links to the official source, with the day we last checked it.
Last verified Oct 31, 2026
Upcoming Boulder County tax sales
- Tax lien
Boulder County tax lien sale details →
- Where
- In person, Boulder County Courthouse
- Deadlines & terms
- Register 7:30am on sale day; 13% rate; 2025 sale averaged 5.6% premium
- Listings
- 757 parcels on the county's list
Last verified Oct 31, 2026 · Official source: bouldercounty.gov ↗
First 3 parcels on the Boulder County list Parcel Address Balance 146311208160 5126 WILLIAMS FORK TRL #210, BOULDER 80301 $2,201.94 146527010026 3043 N STEVENS CIR, ERIE 80516 $6,594.01 131507424005 608 BARBERRY DR, LONGMONT 80503 $3,259.06 Showing 3 of 757 parcels from the county's published list. See the full list (free account) →
How Colorado tax sales work
Colorado is a tax lien state: at the sale, investors buy a lien (certificate) on the property rather than the property itself. The owner can pay off the lien with interest or penalty during the redemption period; if they don't, the certificate holder can eventually seek a deed.
How the auction is won: Premium; premium kept by county. Maximum interest or penalty: Fed discount rate + 9 points (fixed). Redemption period: Until the treasurer's deed (3-year deed rule now pre-July 2024 only).
Recent change (HB 24-1056, signed May 10, 2024): Automatic treasurer's deed to certificate holder now applies only before July 1, 2024.
Sources: C.R.S. §39-12-103 · §39-11-115
Boulder County sale office
- Run by
- County Treasurer
- Usual timing
- Annually in November (live sale)
- Venue
- In person, Boulder County Courthouse (per county FAQ)
- Next sale
- Nov 13, 2026
Advertised list updated each Friday; mobile home liens struck off to county instead of auctioned.
Last verified Oct 31, 2026 · Official page: bouldercounty.gov ↗
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Not legal advice. LienDesk is a research tool. This page summarizes public records and statutes for general education; it is not legal, tax or investment advice. Laws, dates and terms change, so confirm everything with the county, the trustee or sheriff running the sale, and a licensed attorney before you bid.