Washington · County auction knowledge
King County auction guide
King County holds online tax foreclosure auctions each September through Realauction. The listed 2026 dates have passed; check Treasury Operations for the next announcement.
What is offered
Parcels are sold where-is and as-is. The county gives no warranty of title, physical condition or fitness for a particular use.
Registration
Follow the county's Realauction link to register and view parcels. The platform also provides bidder training materials and videos.
Terms
Read the terms for the sale you plan to enter. The reviewed county page links a prior year's terms, which should not be used as the next sale's instructions.
Next auction
The reviewed registration and auction dates for 2026 have passed. Wait for a new county announcement before making plans.
Official references
Schedules and procedures can change. This guide summarizes the cited sources; the county’s current auction notice controls the requirements for a particular sale.