King County Property Tax Appeal

Christopher assists King County homeowners in evaluating and filing property tax appeals with the Board of Equalization. Success requires true comparable sales from October–December of the prior year that are significantly below your assessed value. Christopher will advise you on the merits of your comparables and assist you in submitting the appeal — but finding comparables is outside the scope of legal services.

• Appeals must be filed within 60 days of the mailing date on your Official Property Value Notice Card — email Christopher a PDF of the Card if you want assistance
• File online using eAppeals to check appeal status and view documents from the Board of Equalization and King County Assessor at any time
• To succeed, you generally need at least two comparable sales from October–December of the prior year that are both at least 10% below your assessed value
• Comparables must match: type of home, year built, location, square footage, bedrooms, bathrooms, and condition — within the correct time period
• Assessed value is typically at least 10% below market value — meaning comparables must be more than 30% below your assessed value to make a meaningful tax difference
• A $20,000 reduction in assessed value at a 0.7% tax rate saves only $140 — understand the math before investing time in an appeal
• The more likely path to success: evidence specific to your property — photos of structural damage, black mold, or neighborhood changes (e.g., new light rail) affecting value
• Before filing, email your evidence to [email protected], then follow up by phone at 206-477-1060
• About 25% of homeowners who appeal receive some adjustment — even if only a few hundred dollars
• Include all evidence with your initial appeal submission — early submission increases the chance of a reduction offer from the Assessor without a hearing