Colorado Tax Lien & Tax Deed Auctions

Every Colorado county we track, with its next sale date, platform, and rules — each field sourced directly from the county or state's official page and re-verified on a rolling basis.

Colorado law (C.R.S. Title 39, Art. 11/12): Each county Treasurer holds an annual tax lien sale, typically Oct/Nov; the statutory maximum interest rate resets every Sept 1 (9 points above the Federal Reserve discount rate) and applies to certificates sold that cycle.

Colorado State Guide →Set a safer bid limit →Use the due-diligence checklist →All states →Academy: what a tax lien actually is →

Jefferson County, Colorado

lien · Zeus Auction (SRI, Inc.)

November 2026 (exact date not yet published)

month confirmed, day TBD

Adams County, Colorado

lien · Colorado Tax Sale internet auction platform, run by the Adams County Treasurer at adams.coloradotaxsale.com

Not yet announced (the 2025 sale for tax year 2024 ran October 20-31, 2025; Adams County typically holds its internet tax lien sale each fall)

not yet announced

Arapahoe County, Colorado

lien · RealAuction (arapahoe.coloradotaxsale.com)

Not yet announced (typically early November; 2026 date not yet posted)

not yet announced

El Paso County, Colorado

lien · RealAuction (elpaso.coloradotaxsale.com)

Not yet announced (2025 sale registration opened late September; 2026 date not yet posted)

not yet announced

County procedure coverage

10 more Colorado county procedures reviewed

These counties have a reviewed tax-sale process and an official starting point. They are not presented as upcoming auctions unless a current auction date has also been confirmed above.

Show all 10 reviewed county procedures

Arapahoe CountyTax lien

Annual - typically Oct-Nov