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Tax Sale Atlas

Cowlitz County, WA tax sales

How tax deed sales work in Cowlitz County, seat of Kelso: sale calendar, auction platform, over-the-counter lists, and the offices that run each sale.

New to tax sales? Read how Washington tax sales work or look terms up in the glossary.

Next sale
Tax sale scheduled for December 7, 2026.Monday · 2026
Format
County site
County office
(360) 577-3060
Every displayed fact carries a source badge. Verified Aug 16, 2026 against official county and state pages.How we verify
On this page

How Cowlitz County sells delinquent taxes

No tax lien certificate sale

Washington counties do not sell tax lien certificates to investors.

Tax deed sale

Online auction
Run by
Cowlitz County Treasurer's Office (Foreclosure Department)
Frequency
annual
Next sale
Tax sale scheduled for December 7, 2026.
Sale list
2026 Foreclosure Property Information (parcel list with per-parcel map and title report links)
When it runs
Early December each year. The county's 2026 page states the foreclosure auction "is currently scheduled to take place online at PublicSurplus.com on December 7, 2026"; the 2025 sale ran on December 8, 2025 and the 2024 sale on December 9, 2024.
Registration and deposit

Bidding for the 2026 sale is online through Public Surplus, so create a buyer account at publicsurplus.com before sale day. The county's foreclosure pages do not publish deposit, bidder-qualification, or payment-deadline rules, so confirm registration and payment terms with the Treasurer's Foreclosure Department at (360) 577-3060 before bidding.

Sale format and venue
Superior court tax foreclosure under RCW 84.64. The Treasurer filed the 2026 certificate of delinquency with Cowlitz County Superior Court on June 2, 2026 (cause no. 26-2-00582-08), covering 13 properties with taxes unpaid from 2023 or earlier; the published list had shrunk to 10 parcels by July 30, 2026 as owners redeemed. Sales are small and clear fully: all 11 auctioned parcels sold in December 2025 and all 4 in December 2024. The 2026 sale is the first the county pages show on Public Surplus; earlier years' pages do not name a platform, so verify the venue each cycle. Minimum bid terms are not published on the county pages.
Register on Online auction
Source: Cowlitz County Treasurer, 2026 Foreclosure· Verified Aug 16, 2026

Cowlitz County tax sale list and auction calendar

For Cowlitz County tax sale 2026 searches, use the county-run sources below rather than a copied parcel list, and confirm the parcel, registration cutoff, deposit, and payment deadline against the county before you bid.

  1. Get the advertised list

    Use 2026 Foreclosure Property Information (parcel list with per-parcel map and title report links) for the current advertised parcels, then recheck it before the auction.
  2. Register to bid

    Ask the county office how and when to register; many counties close registration days or weeks before the sale.
  3. Sale day

    Tax sale scheduled for December 7, 2026. Bidding runs on County site; check posted sale dates, registration status, and bidding windows there.
  4. Confirm with the office

    If the list, platform, and notice disagree, use Cowlitz County Treasurer's Office (Foreclosure Department) as the source to confirm which parcels are actually offered.

Before you bid in Cowlitz County

  1. Start with the live sale list

    Pull the current advertised parcels from 2026 Foreclosure Property Information (parcel list with per-parcel map and title report links). Lists can change before the sale, so recheck the county source before you price a parcel.
  2. Confirm registration and deposit

    Bidding for the 2026 sale is online through Public Surplus, so create a buyer account at publicsurplus.com before sale day. The county's foreclosure pages do not publish deposit, bidder-qualification, or payment-deadline rules, so confirm registration and payment terms with the Treasurer's Foreclosure Department at (360) 577-3060 before bidding.

  3. Check the state rules that change the bid

    Read the Washington due-diligence checklist before bidding. Redemption, liens that survive a tax deed, title cleanup, and payment deadlines can change what a parcel is worth.
  4. Set a walk-away number

    Work out what the parcel is actually worth with the rural land value estimator, then turn it into a ceiling with the tax deed max-bid calculator.

Over-the-counter (leftover) purchases

Washington counties keep no standing over-the-counter list. Parcels that draw no sufficient bid are struck to the county in trust for the taxing districts as tax-title property. The county resells that inventory under chapter 36.35 RCW, usually at a later sale at a minimum price fixed by the county legislative authority after three weeks of published notice, and in limited cases by direct sale without bids, including within twelve months after a failed auction. Whether any tax-title inventory exists, and how this county sells it, must be confirmed on the county's tax-title or surplus property page.

New to this path? Read how over-the-counter purchases work.

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County offices

Tax sale office

Cowlitz County Treasurer's Office

(360) 577-3060

207 N. 4th Ave., Room 202, Kelso, WA 98626

Official website

County notes

  • The Treasurer's Office is open 7:00 a.m. to 4:30 p.m. Monday through Thursday and closed Fridays and legal holidays.
  • Each parcel on the county's foreclosure property list links to a map and a title report, an unusually strong due-diligence aid for a county this size.
  • The foreclosure list shrinks between the June court filing and the December sale as owners redeem (13 properties filed in June 2026, 10 remaining by late July), so re-check the list close to sale day.
  • Recent sales are small and sell out: 11 of 11 parcels sold in December 2025 and 4 of 4 in December 2024.

Washington rules

Redemption
Any property on which a certificate of delinquency has been issued may be redeemed at any time before the close of business the day before the day of the sale. Washington has no general post-sale redemption period: once the treasurer sells the parcel, the sale is final for a competent adult owner. The one exception protects minors and persons adjudicated legally incompetent, whose property may be redeemed at any time within three years after the date of sale, on payment of the amount for which the property was sold plus interest at the statutory delinquent-tax rate from the date of sale, plus the reasonable value of improvements made in good faith on the property, less the value of their use. No fee may be charged for any redemption.
Deed deposit
For an auction conducted by electronic media, prospective bidders must deposit funds with the treasurer to participate, deposits of non-winning bidders are refunded within ten business days, and payment is by electronic funds transfer. Deposit amounts for in-person sales are set county by county, so confirm the figure on the county treasurer page or the auction platform terms.
Surplus proceeds
If the winning bid exceeds the minimum bid due on the whole property, the excess is refunded to the record owner. The record owner is the person who held title on the date the certificate of delinquency was issued. Surplus unclaimed within three years of the sale date is deposited in the county current expense fund, after which the claim is extinguished.
Governing statute
RCW Chapter 84.64

A tax deed does not convey marketable title. Most buyers file a quiet title action before they can resell or insure the property. See the due diligence guide.

See the full Washingtonrules and every county →

Frequently asked questions

Does Cowlitz County, Washington sell tax liens or tax deeds?

Tax deeds. Washington sells no tax lien certificates to investors; the County Treasurer sells the property itself at a public tax sale.

How often does Cowlitz County hold tax deed sales?

Cowlitz County holds its tax deed sale once a year. is currently scheduled to take place online at PublicSurplus.com on December 7, 2026. Each sale is scheduled and advertised in advance, so check the county's tax deed calendar for the next posted date.

I own a property in this sale. Can I stop it?

Often yes, by paying the overdue taxes, interest, and costs before the deadline. Washington's redemption rule: Until the close of business the day before the sale; no redemption after the sale except for minors and legally incompetent persons. Call the Cowlitz County Treasurer's Office (Foreclosure Department) as early as possible for your exact payoff and options; deadlines are strict. Free help: lawhelp.org lists legal aid programs, and consumerfinance.gov lists HUD-approved housing counselors.

Where can I find the Cowlitz County tax sale list?

Cowlitz County posts its tax sale list at co.cowlitz.wa.us. Lists go up ahead of each sale and keep changing until the sale date, so confirm every parcel against the county's legal advertisement before you bid.

Verified Aug 16, 2026 against official county and state sources.

Tax Sale Atlas publishes educational information about public tax sale processes. This is not legal, financial, or investment advice. Rules, dates, and fees change; confirm with the county office before you bid.

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Compare sale calendars, platforms, and rules across the state, or read the guides before you bid.

Call Cowlitz County Treasurer's Office