Tangible business personal property is taxable in the Collin County appraisal district. This includes equipment and inventory.Yes. State law requires that all business owners file a business personal property rendition annually. Pay property taxes on time. Property Tax Statements are mailed out in October, and are due upon receipt. Enroll in the Property Tax Protection Programâ„¢ today. It is the duty of the Tax Assessor-Collector to assess and collect for the County all taxes imposed on property within the county. Wondering if your business's personal property tax is assessed at a higher value? Here's a technique to determine the precise value of your property. The Texas Property Tax Code requires owners of business personal property (BPP) to annually render those assets used in a business.