What this page is: a persistent profile of how Arapahoe County, Colorado runs its tax sale, independent of any single year's date. For the specific upcoming sale with a confirmable date, see the event page linked below.
Arapahoe County, Colorado Tax Sale, County Hub
Arapahoe County, Colorado runs a lien sale via RealAuction (arapahoe.coloradotaxsale.com). Held on an annual cycle; the specific date is set and published by the county each year rather than falling on a fixed statutory day.
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Legal structure & statutory basis
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.
County contact / official source
RealAuction (arapahoe.coloradotaxsale.com) is the office/platform of record for this sale.
https://www.arapahoeco.gov/your_county/county_departments/treasurer/tax_lien_sale/index.phpSale history
We currently track one active cycle for Arapahoe County at a time and don't yet maintain a distinct archive of past sale events for this county -- when a cycle closes, the record here reflects the newest tracked cycle rather than an appended history. This is a known gap in the dataset, not a claim that Arapahoe County has held only one sale.
Tracked sale event
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