Examples of items that would be subject to personal property tax include chairs, mirrors, washing sinks, hair dryers, and styling tools. Washington State provides the following exemptions from personal property tax (RCW 84.36):. •.In Washington State, personal property refers to assets used in conducting a business, other than real estate. Personal property tax is due April 30th. Head of Family Exemption: This exemption is extended only to Sole Proprietors with residency in the State of Washington. It must be personal property (movable objects), not real property (land or a house). Washington State provides the following exemptions from personal property tax (RCW 84.36):. Can I get help filling out the form? A complete listing of assets should be filed for each location. When completing the form you must: 1.