Snohomish County, Washington property-tax payment and appeal deadlines
Tax bills, payment rules, and valuation-review windows are controlled by the local jurisdiction and the governing state framework. The reviewed record below separates published figures from items that still require confirmation with Snohomish County Assessor; Snohomish County Treasurer collects property taxes.
Rate context
ConfirmWashington property-tax rates vary by tax code area and taxing districts; no single countywide effective rate was published by the county.
Statement mailing
PublishedFebruary 2026; Snohomish County states tax statements are typically sent in February; the exact 2026 mailing date was not published on the reviewed tax pages.
Payment deadline
Published2026: first-half or full payment due April 30, 2026 and second half due October 31, 2026; if annual tax is $50 or less, full payment is due April 30.
Valuation protest
PublishedAugust 25, 2026 at 4:00 p.m. for taxes payable in 2027, because the Assessor mailed 2026 notices on June 26, 2026; Snohomish County states the deadline is 60 days after mailing or July 1, whichever is later.
Do not assume a grace period.
The reviewed record identifies the payment timing above but does not establish a universal penalty schedule for this page. Late charges, interest, collection costs, tax-sale procedures, and lien or foreclosure timelines can depend on state law and the local collector’s process. If the deadline is close or a balance is delinquent, contact the tax collector directly and request the current payoff amount in writing.
Treat a published payment deadline as a hard operational date and retain your receipt or confirmation number.
From assessment to collection
01Valuation and notice
Review the assessment notice as soon as it arrives. The protest window may run from the notice date rather than from the payment due date.
02Statement and account review
Match the tax statement to the parcel or account number and confirm exemptions, assessed value, taxing units, credits, and balance.
03Payment confirmation
Use the official collector channel, then save the receipt, transaction reference, and date posted. A bank submission is not always the same as a county posting date.