Snohomish County, WashingtonProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Tax bill mailing
- February 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
- 2026: 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.
- Assessment appeal
- August 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.
Exemptions & appeals
Exemption filing
December 31, 2025 for a 2026 assessment-year Senior/Disabled exemption under the Washington application schedule; the county's 2026 application requires 2025 income documentation and is filed with the Assessor Exemption Division.
Senior relief
Snohomish County's 2026 Senior Citizen/Disabled Persons application covers qualifying homeowners age 61+ or persons retired because of disability, with income and ownership/occupancy requirements. The 2026 packet uses 2025 income records; contact Exemptions at 425-388-3540. Official packet: https://snohomishcountywa.gov/DocumentCenter/View/113022/2026-SCE-Application
Valuation limits
Washington has no individual parcel assessed-value cap. County assessors value property at 100% of true and fair market value; regular taxing-district levy revenue is generally limited to a 1% annual increase plus new construction under RCW 84.55, subject to voter-approved lid lifts and other statutory rules. The 1% constitutional levy limit constrains aggregate regular levies, not an individual parcel's value.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.
More exemption & appeal guidance →