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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... Read more

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. Learn more about levies and our property tax system

In 2012, 13 of the 16 taxing district requests to voters for funding were 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 since 2007. Sales that occurred in 2012 will be used to calculate the new 2013 assessments, which will be used to calculate taxes due in 2014. Learn more about annual reports
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 Important Dates
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January 1 Real and personal property is subject to taxation and valuation for assessment purposes as of this date.
February 15 Property taxes can be paid on or after this date
April 30 Personal property listings due.
April 30 First half taxes due.
May 31 End of revaluation cycle.
July 1 Filing deadline for Board of Equalization appeals.
July 15 Board of Equalization meets in open session.
August 1 Most taxing district boundaries must be established.
August 31 Last day Assessor can add new construction value.
October 1 Last day to file for exemption on historic property.
October 7 County begins budget hearings.
October 31 Second half property tax due.
November 30 City and other taxing districts budgets are due to the County Legislative Authority.
November 30 Tax certifications and the amount levied per taxing district are due to the county assessor.
December 31 Deadline for open space assessment applications.