The county Assessor determines the value of all taxable real and personal property in the county for the purpose of distributing tax liabilities in an equitable manner.
Tax Exemption Records
The Assessor is also responsible for processing and maintaining records regarding tax exemptions including:
Churches
Historical properties
Public properties
Programs like open space and forest land
Senior citizens
Personal Property Information
As a business owner in Washington State you are responsible for filing a personal property listing with your local Assessor's Office by April 30th each year.