Business Personal Property

All businesses in Mason County are responsible for filing a personal property listing each year. (RCW 84.40.185)

If you own or operate a business, the assessed value of the equipment you use to run your business is subject to personal property tax.

Examples of personal property include machinery, equipment, furniture, fixtures, and supplies associated with commercial, industrial or agricultural enterprises.  Generally, personal property does not include business inventories, personal effects, and property which is attached to the building or land.

If you have questions about the personal property assessment process, please contact our office at (360) 427-9670 ext. 491 or email

To assist you with better understanding your personal property taxes, please refer to the following resources.