About the Board of Equalization

Current Thurston County BOE news/updates: 

  • WE HAVE MOVED: The Thurston County BOE office moved in December 2022. The new location is 3000 Pacific Avenue SE, Olympia, WA 98501.
  • The Assessor's Office sent out the new 2022 Official Property Value Change Notices on August 19, 2022. The deadline for appealing those assessments with the Board of Equalization was Tuesday, October 18, 2022. See Assessment Appeals.
  • The BOE continues to process and hear the 2020 and 2021 assessment year appeals. Residential cases are scheduled by region and commercial cases are scheduled by property type. Taxpayers will receive a written notice at least one month prior to their hearing. While awaiting a hearing, property taxes must still be paid when due to avoid accruing interest and penalty fees. When an appeal is resolved, if there is a valuation change, the Treasurer's Office will either issue a corrected property tax statement or a refund. For more information, please refer to Appeal Process and Frequently Asked Questions.
  • Supplemental Information may be submitted electronically for previously filed 2020 or 2021 appeals.
  • All BOE hearings are currently being held remotely via a conference call format.
  • BOE meetings are also being held by conference call, although in-person attendance is available to members of the public. See details in "Business Meeting Schedule."

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​The Thurston County Board of Equalization is a quasi-judicial board comprised of three citizen members who are appointed for three-year terms by the Thurston County Commissioners. Three alternate members are also appointed by the County Commissioners to serve when regular Board members are absent. The Board is established by the laws of Washington State and governed by the Washington State Department of Revenue (DOR), pursuant to RCW 84.08.020 and 84.08.060.

The Board is separate from and operates independently of the Thurston County Assessor. It adjudicates appeals of assessed property valuations and other determinations of the Assessor, with a goal of providing an impartial and economical forum to hear and decide appeals brought by taxpayers. The Board is also responsible for equalizing the assessed values so that all real and personal properties in Thurston County are assessed equitably at 100 percent of their true and fair value, with comparable properties assessed at comparable values.

Hearings of the Board are open to the public except for confidential proceedings involving proprietary business information. Hearings are held during business hours, currently via a conference call format.

The Board’s Clerk and staff are employees of Thurston County; however, they perform their duties under the direction, and serve at the pleasure, of the Board, pursuant to RCW 84.48.028.

Current members of the Board are:
Robert Hastings, Chairman 
Diane Pust, Vice Chair 
John Morrison

Alternate Members of the Board are:
John Graver 
Ted May 


Customer Service Hours

The Board of Equalization's customer service hours  are:


Star.jpg The Thurston County BOE accepts petitions and supplemental information online.

Use one of the following links to attach your PDF read-only documents (this is necessary to ensure your data/signature doesn't get lost when transmitted). Please do not electronically submit documents through a different email or by any other method. 

Click these instructions on how to save your completed PDF interactive petition form for electronic submittal.

The deadline to file a 2022 property appeal (unless stated otherwise on your Official Property Value Change Notice) is Tuesday, October 18, 2022. Use this link to submit a NEW 2022 Petition

*NEW* Submit NEW Petition 


The link below is for submitting additional information on an existing 2020 or 2021 appeal:

Paper copies of completed Petition forms and other documents can also be mailed through the US Postal Service, sent via UPS or Fed Ex, or delivered in person to the Thurston County Board of Equalization, 3000 Pacific Avenue SE, Olympia WA 98501. If our office is closed, there is a drop box outside our door on the wall facing our office. Submissions can also be placed in the drop box for all Thurston County business located in the parking lot. 

Staff Contact

Ruth Elder, Clerk / Manager
Board of Equalization


Office: 360-786-5135
TTY/TDD: 711 or 1-800-833-6388

Email Ruth Elder


3000 Pacific Avenue SE
Olympia, WA 98501