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Assessor's Office


Cindy Portmann Assessor
425 388-3433
Snohomish County Washington
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Did you Know?
Cindy Portmann Assessor
Typically 42% - 47% of all property taxes that you pay are from voter approved levies. This includes cities, schools, parks, fire districts, and more...


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Washington State has a 'budget-based' property tax system, so the taxing districts budgets and voter approved measures determine how much you pay. Simply put, when values decline levy rates increase, when values increase, levy rates decrease. Click Here to learn more about levies and our property tax system.


In 2010, 33 of the 44 taxing district requests to voters for funding was passed by voters.


The decrease in total residential assessed value county-wide started with the 2008 Jan. 1st assessment and reflected the decline in the market in 2007. This value was used to calculate taxes owing in 2009 according to state law.


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About the Assessor's Office
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The primary responsibility of the Assessor's Office is to identify and assess all taxable real and personal property in incorporated and unincorporated Snohomish County for property tax purposes. The office administers numerous special classifications and a variety of tax exemptions, including the exemption and deferral programs for limited income senior citizens and disabled persons. The Assessor responds to property owners petitions to appeal assessed values with the Board of Equalization, examines taxing districts' budget requests for statutory compliance and calculates the tax levy rates for each taxing district in the county. The Assessor's office also maintains the county parcel layer maps and legal descriptions of tax parcels

  • Important Dates - A calendar of deadlines, and other significant property tax dates throughout the year

  • Mission & Role - An overview of the mission of a county assessor in Washington State and the role property assessment, both real and personal, plays in the taxation system.

  • Scope & Function - Information about the type of property that is assessed and how our office goes about the processing of setting fair market value.