What this page is: a persistent profile of how King County, Washington 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.
King County, Washington Delinquent Tax List and Tax Sale Hub
131 parcels are on the King County delinquent tax list. King County, Washington runs a deed sale via King County Treasury (RealAuction). 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.
King County delinquent list: 19 parcels published
Source: RealAuction (king.wa.realforeclose.com) RealForeclose- King County County, sale of 09/23/2026, retrieved 2026-09-22A sample of what the county has published for this sale. The full list, with map, filters, CSV export and a property report on any parcel, is in the member research view.
Years tracked: 2026 (1 list). 2026: 131 parcels. Each year's King County list is kept as published, so a parcel that appears again next year can be traced back.
| Parcel | Opening bid | Assessed value | Sale date |
|---|---|---|---|
| 8807810290 | $29,125 | $392,000 | 2026-09-23 |
| 0121059036 | $16,907 | $201,000 | 2026-09-23 |
| 0185000051 | $12,187 | $165,000 | 2026-09-23 |
| 7359600625 | $11,476 | $106,400 | 2026-09-23 |
| 3022079006 | $10,384 | $116,000 | 2026-09-23 |
| 0923049190 | $8,209 | $88,000 | 2026-09-23 |
| 1423069142 | $7,583 | $37,000 | 2026-09-23 |
| 3623069043 | $7,396 | $34,000 | 2026-09-23 |
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Legal structure & statutory basis
RCW 84.64
The county Treasurer forecloses on property 3+ years delinquent and sells it at an annual deed auction (minimum bid = taxes owed). General owners have no redemption after the sale; a narrow exception gives minors/legally-incompetent persons up to 3 years.
County contact / official source
King County Treasury (RealAuction) is the office/platform of record for this sale.
https://kingcounty.gov/en/dept/executive-services/buildings-property/treasury-operations/tax-foreclosures/auctionsSale history
We currently track one active cycle for King 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 King County has held only one sale.
Tracked sale event
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