Home / Auctions / Washington / King County / September 9, 2026

King County, Washington Delinquent Tax List 2026

King County, Washington Tax Sale 2026: 131 parcels published by the county for this sale.

King County, Washington held its deed sale on September 9, 2026. The next sale date has not been announced yet.

King County tax sale list

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Published by King County Treasury (RealAuction). Free, from the county's own site.

We also hold 131 parcels from King County's published lists, with addresses and parcel numbers. See the sample below.

Sale date: September 9, 2026 (held). Next date not yet announced.

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Looking for money owed, not property?

When a tax-sale property sells for more than the taxes owed, the excess belongs to the former owner until the county’s claim deadline passes. We do not hold surplus records for King County yet. We do publish verified surplus-funds lists for other states, each record traced to the official county report it came from, and a free search to see what is listed.

Surplus funds belong to the former owner. Claims are filed directly with the county, and the county does not charge you to claim your own money. This is access to collected public records, not a recovery service and not a claim.

King County, Washington delinquent tax list: 131 properties from the last sale

Source: RealAuction (king.wa.realforeclose.com) RealForeclose- King County County, sale of 09/09/2026, retrieved 2026-09-17

This sale has already been held. Below is the list exactly as the county published it, which is still the record of what went to sale and the usual starting point for working out what the next cycle will look like. Nothing here is available to buy today. The full 131 parcels, with a map, filters, CSV export and a report on any single parcel, are 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.

AddressOpening bidAssessed valueSale date

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StatusSale held (next date not announced)
Sale date (held)September 9, 2026
Property listPosted by official source (see link below)
Sale typeTax deed
PlatformKing County Treasury (RealAuction)
Last verified2026-07-15

131 parcels on file for King County

No sale date is set right now. These are the parcels most recently listed by the county or its auction platform, including certificates offered over the counter where the county sells them that way; the next sale list appears here as soon as it is posted.

131 foreclosures. Opening bids run $3,477 to $119,424. Pro members research each parcel before the sale: a property report with the assessed value, the owner of record, liens on title and the county's own data, 25 reports a month, plus alerts the day King County changes this date.

King County at a glance

TaxLienSimple Index
48/100
Tier C
Median home value
$761,500
US Census ACS
Median gross rent
$1,950/mo
US Census ACS
Vacancy rate
5.8%
56.2% owner-occupied
Population
2,254,371
+6.4% over 5 years
Median real-estate taxes
$6,476/yr
US Census ACS

Foreclosure and sheriff sale activity in King County

19 foreclosure parcels currently published, next listed sale date 2026-09-23 (source: RealAuction (king.wa.realforeclose.com) RealForeclose- King County County, sale of 09/23/2026). These run on a separate calendar from the tax sale above; the member research view lists them alongside the tax parcels.

Figures above are drawn from TaxLienSimple's tracked inventory, the county competition model and US Census ACS data; see how we verify.

This is one tracked sale cycle. For King County's recurring cadence, platform, legal structure, and other tracked cycles, see the King County tax sale hub.

What this page shows: a specific sale date King County's own official source has published. It is not a confirmed listing of which properties will be offered that date, always check the official property list. Always confirm directly with the official source below before making plans.

Confirmed sale date: September 9, 2026

Time: Not yet posted (King County posts bidding/opening-bid details mid-to-late August).

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Property list

Sale type
deed
Auction platform
King County Treasury (RealAuction)
Bidding method
Online ascending auction via RealAuction (king.wa.realforeclose.com); minimum bid = full taxes, interest, and costs.
Statutory maximum rate
Deed sale -- no lien certificate (Washington is not a lien state, RCW 84.64).
Redemption period
General owners have NO redemption after the sale -- must redeem before the close of business the day before the sale (RCW 84.64.070). Minors/legally-incompetent persons may redeem within 3 years.
Deposit requirement
Set on RealAuction; 2026 amount not yet posted.

Registration deadline

Through RealAuction; 2026 registration deadline not yet posted (details posted mid-to-late August 2026).

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.

Watch: researching a deed property

A narrated walkthrough: find scheduled tax deed sales, check value, risk flags and a rehab and flip analysis, then shortlist properties to bid on.

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Buying the property itself? In Property Research, choose Tax Deed.

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Open a property.

Start with the Research Score, then the estimated value range, and how confident that estimate is.

Then the risk flags. In a deed sale, liens that survive the sale and a structure we couldn't confirm matter most.

Run the rehab and flip analysis to see what's left after repairs, holding costs, and selling.

Back on the property, download the parcel report as a PDF, to keep with your notes.

Watch the property and mark it as a bid candidate. Tick Saved only at any time to see your shortlist.

That's tax deeds: from a county to a property you're ready to bid on.

King County tax sale, FAQ

When is the next King County, Washington tax sale?

King County, Washington held its deed sale on September 9, 2026. The next sale date has not been announced yet. Check the official source above for the current cycle.

What platform does the King County tax sale use?

King County, Washington runs its deed sale via King County Treasury (RealAuction). Online ascending auction via RealAuction (king.wa.realforeclose.com); minimum bid = full taxes, interest, and costs.

What is the redemption period and rate in King County, Washington?

General owners have NO redemption after the sale -- must redeem before the close of business the day before the sale (RCW 84.64.070). Minors/legally-incompetent persons may redeem within 3 years. Rate/premium: Deed sale -- no lien certificate (Washington is not a lien state, RCW 84.64).

What this page does not show

Everything above is the sale itself: the date, the platform, the statutory terms and the county's own sources, free and without an account. What it does not show is the property-level detail, or the 409 other county and city sales tracked alongside this one.

  • The 131 parcels published for King County. Opening bids, addresses and assessed values, with the official source on each row. This page shows a sample.
  • The full sale calendar. 410 tracked county and city sales, filterable by date, state and sale type, instead of one page at a time.
  • 330,391 parcels across 939 counties. Searchable nationwide, with a research score and the pre-bid warnings behind it.

A free account previews two counties and needs no card. Paid plans start with a 7-day trial for $1.99 and carry a 7-day money-back guarantee. TaxLienSimple is a research platform: we publish the records and the sources, we do not sell properties and we make no claim about what any certificate or parcel is worth.

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