How to appeal your valuation
Two ways to file your appeal
Online
Use eAppeals to research, file and track your appeal. eAppeals is only for appeals of real property assessments.
By mail
Send your petition form, attachments, and supporting evidence to:
King County Board of Equalization
516 Third Avenue, Room 1222, Seattle, WA 98104
Filing deadline
Your petition must be filed online, postmarked, or hand delivered to the BOE office by July 1 of the assessment year. Or within 60 days from the mailing date printed on your valuation notice.