The health and safety of our community and staff is our primary concern. To help protect customers & employees, the Assessor’s Office is temporarily closed to in-person visits, except for limited essential transactions by pre-arranged appointment.
We will strive to provide full services throughout the closure but we ask your patience and understanding as some delays may be unavoidable.

So that we can best meet your needs during this closure, please click here to view several program areas that may have information sharing and/or document filing requirements. Under each program title you will find our contact information along with suggestions for the best methods for filing reports or for exchanging files and documents safely and securely.
  1. 2020 Property Tax Information Statement

    The Whatcom County Assessor’s Office is responsible for annually updating assessed values for all real and taxable personal property in Whatcom County, and calculating levy rates for all taxing districts for property tax purposes. Additional Info...
  2. Senior Citizens and Disabled Persons Legislative Update

    The Washington State Legislature has passed ESSB 5160. The new law increases the income thresholds for qualifying Senior Citizens and Disabled Persons in the Property Tax Exemption and Property Tax Deferral Programs. Read on...
  3. Property Revaluation News

    The Washington State Department of Revenue has approved the Assessor’s Office’s Annual Real Property Revaluation program. Annually, 1/6th of the county will be physically inspected and the whole county will be statistically revalued. Read on...
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The Assessor is elected to a 4-year term, nonpartisan position. The current term is from January, 2020 to January, 2024.


Maintain the integrity of a professional property tax administration. Equitably list and establish taxable value for all real and taxable personal property in the county, used to distribute tax responsibility. Deliver irrefutable excellence in customer service.


Established by state constitution and laws, directed by the Department of Revenue, the Assessor´s Office:

  • Appraises and revalues all real property, and physically inspects 1/6th of all real property, every year. Responds to building permit activity to include new construction additions
  • Maintains inventory, description, ownership, sales and mapping for all property
  • Publishes an annual tax booklet, which includes the statement of assessed valuations, tax rates and taxes levied within the various taxing districts of Whatcom County
  • Provides information, education and assistance
  • Provides public computer access to assessment data, also now available on the Internet through the Real Property Search
  • Allocates value to taxing districts, calculates levy rates and certifies tax roll to Treasurer
  • Administers and provides information for tax exemptions
  • Prepares defenses of valuations for Board of Equalization, State Board of Tax Appeals and courts