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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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Downloadable Property Forms and Publications
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Some of these forms are in PDF format which requires Adobe Acrobat Reader for viewing. If you prefer not to use these online forms or publications, you may contact us for information on where to obtain this information or request that it be mailed to you.

Alphabetical List of All Forms:

A
2013 Annual Report
2012 Annual Report
2011 Annual Report
2010 Annual Report
2009 Annual Report
2008 Annual Report
2007 Annual Report
2006 Annual Report
2005 Annual Report
Advance Tax Business Closure Form
Advance Tax Business Sale Form
Alternate Plat Listing by Name Compiled from our GIS
Application for Exemption of Farm Machinery and Equipment
D
Dept of Revenue Business Personal Property Tax Fact Sheet
Dept of Revenue Business Personal Property Valuation Guidelines
Designated Forest Land Application
Designated Forest Land Publication
Destroyed Property Claim Form
F
Farm Machinery and Equipment Exemption Form
H
Historical Property Special Valuation on Improvements Application
Homeowner's Guide to Property Taxes Publication
I
Improvement Exemption - Single Family Dwellings
L
Legal Description Abbreviations Publication
Legislative Guide to Washington State Property Taxes
Limited Income Property Tax Deferral Application
Limited Income Property Tax Deferral Program Publication
Levy Class
M
Mass Appraisal Reports for 2012
Mass Appraisal Reports for 2011
Mass Appraisal Reports for 2010
Mass Appraisal Reports for 2009
Mass Appraisal Reports for 2008
N
New Plat Listing
Name & Address Change Form
O
Open Space and Designated Forest Audit FAQ
Open Space Farm and Agricultural Land Classification Application
Open Space General Application 
Open Space or Timber Current Use Assessment Application
Open Space Publication
P
Personal Property Listing Form
Personal Property Listing Form Back
Personal Property Listing Form Instructions
Personal Property Listing Form Sample
Personal Property Listing Item Abbreviations and Categories Guidelines 
Petition for Property Tax Refund
Plat Listing by Name (Full)
Plat Listing by Number (Full)
Property Tax/Leasehold Excise Tax Exemption Form
Property Use Codes Publication
R
Residential Appraisal Process
S
Sample Personal Property Listing Form
Segregation Request Form
Senior Citizen/Disabled Person Deferral Application
Senior Citizen/Disabled Person Deferral Publication
Senior Citizen/Disabled Person Exemption Application
Senior Citizen/Disabled Person Exemption Publication
Space / Building Improvement Guidelines Publication
V
Valuation Appeal Publication