The County Assessor revalues all property in their County each year, notifying property owners of their new value determinations by mail. These new valuations will be the basis for the amount of taxes due the following year. Property owners who believe the new assessed value of their property exceeds its fair market value have the opportunity to appeal by filling a petition to theirs county's Board of Equalization (BOE).
Petitions must be received by the Board on or before July 1st of the assessement year or within sixty (60) calendar days after the date listed on the Assessor's value change notice- whichever date is later.
Each county has slightly different forms and steps to their process. For more information visit each county assessor's website or contact your county's Board of Equalizations.
King County -
Board of Equalization www.kingcounty.gov/appeals 206-296-3496
Department of Assessments www.kingcounty.gov/assessor 206-296-7300
Snohomish County -
Board of Equalization www.co.snohomish.wa.us 425-388-3407
Assessor's Office www.co.snohomish.wa.us 425-388-3433