If property owners believe their value to be substantially different than the market value, the department should be called to verify the records. Property values may be appealed by filing a petition form with the local Board of Equalization. Information about the appeals process is available in Appealing Your Property Tax Valuation to the County Board of Equalization (PDF - 222K), published by the Washington Department of Revenue.
Additional information about property taxes and property value appeals in Washington is available from the Department of Revenue. The Homeowner's Guide to Property Taxes (PDF - 298K) provides an overview of the programs administered by the Assessor.