Business inventory is personal property but is 100 percent exempt from taxation. In person: Visit one of office locations to complete the Business Property Statement.The information an owner provides on the statement is then used to assess and tax property in accordance with California State Law. General information for owners about business property assessments and filing the Business Property Statement (Form 571-L). Any business owner the Assessor sends a written request to must complete, sign and file an original Business Property Statement. This file provides the necessary form for reporting tangible personal property for tax purposes. The California State Board of Equalization (BOE) states that business personal property may also be taxable.