Whatcom County, WA
Online tax foreclosure sale on Bid4Assets, Dec 1–2 — bidder deposits due Nov 25
Whatcom County's real property tax foreclosure sale will run online on Bid4Assets, with bidding opening at 9 a.m. Pacific on December 1, 2026 and closing at 9 a.m. on December 2. The bidder deposit deadline is 1:30 p.m. Pacific on November 25 — the day before Thanksgiving — so deposits need to go out well ahead of that. The county lists the sale under its future sales with a minimum bid list; the Bid4Assets storefront, and with it the terms and conditions, is built closer to the auction date. Whatcom runs a predictable cycle: last year's foreclosure sale was December 1–2, 2025, followed by a re-offer of unsold parcels on January 26–27, 2026, and results for both are posted on the county's auctions page.
As in the rest of Washington, this is a deed sale, not a lien sale. Three years after taxes go delinquent the treasurer forecloses in superior court and auctions the property with a minimum bid covering the taxes, interest and costs (RCW 84.64.050, 84.64.080). Owners can redeem only until the close of business the day before the sale; after it, the buyer receives a treasurer's tax deed and there is no redemption, except that a minor or someone adjudicated legally incompetent can redeem within three years by repaying the price with interest and the value of good-faith improvements (RCW 84.64.070). Anything bid above the minimum is held for the owner of record, which is why the minimum bid list is worth reading: it shows exactly what the county has to recover on each parcel. The same auctions page covers the county's distraint sales of personal property and mobile homes, which follow different rules.
Washington rules at a glance
Washington sells no lien certificates: three years after taxes go delinquent the county treasurer forecloses in superior court and auctions the property itself, with a minimum bid equal to the taxes, interest and costs (RCW 84.64.050, 84.64.080). The owner can redeem until the close of business the day before the sale; after it, the buyer gets a treasurer's tax deed and there is no redemption, except that a minor or a person adjudicated legally incompetent can redeem within three years by repaying the price with interest and the value of good-faith improvements (RCW 84.64.070). Anything bid above the minimum is held for the owner of record for three years.
The statute, the bidding and what goes wrong for new buyers are on the Washington page; every sale date we have sourced for Whatcom County is on the Whatcom County page.
Property & tax profile
The median homeowner in Whatcom County pays $4,087 a year in property tax — below the Washington median of $4,556 (U.S.: $3,119). That is roughly what a typical home here owes for each year it goes unpaid — the debt that the opening bid at a deed sale is usually built from, plus interest and costs. Homes with a mortgage pay a median of $4,135; homes owned outright, $3,987.
On a home with a mortgage, the lender has its own reason to pay a delinquent tax bill: the tax lien outranks the mortgage, and a tax deed can wipe out the loan. On a home owned outright, nobody but the owner — or the heirs — has that reason. In Whatcom County, 37.3% of owner-occupied homes are owned outright (Washington: 33.9%, U.S.: 39.4%). That is more than the state as a whole, so a larger share of the delinquent bills here have no lender behind them.
9.2% of all housing units in Whatcom County are vacant. The figure that matters for a buyer at the tax sale is the Census “other vacant” category — not for rent, not for sale, not a holiday home, but a catch-all that includes foreclosures, homes held up by legal proceedings or family reasons, homes needing repairs, and abandoned ones. Here it is 2.4% of all units (Washington: 2.0%, U.S.: 3.6%). Close to the state rate.
Half of the homes in Whatcom County were built in or before 1989 (Washington: in or before 1985). The typical tax bill is 5.0% of the median household income of $81,784 (Washington: 4.6%).
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (tables B25077, B25103, B25081, B25002, B25004, B25035, B19013) — see the figures on data.census.gov. Survey estimates with margins of error; anything too uncertain to state is left out.
Before you bid: The storefront and terms aren't up yet, so check back well before November 25 and read the terms and conditions before sending a deposit. Bidding is online only; questions about specific parcels go to the Whatcom County Treasurer's Office.
Official source: whatcomcounty.us — checked October 4, 2026
More sales: 19 other county sales are on the calendar in December 2026 — see them by date; or the upcoming sales in Washington.
This page reflects publicly posted county auction notices as of publication and is general information, not financial or legal advice. Sale details can change — always confirm current terms with the county directly.