Board of Equalization

Members of the Board of Equalization are appointed by the Board of County Commissioners for the purpose of hearing appeals involving property tax valuations. The Clerk of the Board of Equalization is a part time county employee.

The office is staffed limited hours, so please leave a message when calling so that your call can be answered in a timely manner.

FILING AN APPEAL: You must file a petition by July 1st of the current assessment year or within 30 days of the date on the "Change of Value Notice" from the Assessor's office. Follow the link below or contact the BOE Clerk for the petition form.

Mailing Address:
Board of Equalization
PO Box 509
Prosser WA 99350


Phone: 509-786-5604 or 509-736-3089
Fax: 509-786-5625



Address for scheduled hearings:
Board of Equalization Conference Room
620 Market St
Prosser WA 99350
(2nd floor of the Prosser Courthouse)

BOE hearing calendar for November 2020:

November 18

Public may attend hearings. All hearings begin @ 9 am. If you wish to attend, contact BOE clerk for instructions.
NOTE: Dates/time subject to change.


Washington State Department of Revenue Property Tax Information and Property Tax Appeal Forms

      BOE Contacts

      Peggy Brown, Clerk
      George Romano, Chairman
      John Deichman, Member
      Chuck Wierman, Member


      Benton County    620 Market Street    Prosser, Washington 99350
      Phone: (509) 786-5710 or (509) 783-1310
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