The Arizona Department of Revenue (Department or ADOR) administers the property tax system in cooperation with the 15 county assessors, among others. Personal property is reported on the Business Property.Statement (DOR Form 82520) for commercial business property or the Agricultural Business Property. What is Business Personal Property? In Arizona, business personal property is generally defined as all types of property except real estate property. For property tax purposes in Arizona, Personal Property is defined as all types of property except Real Estate. Business personal property deals with the physical assets used in the operation of the business. For property tax purposes in Arizona, business personal property is defined as all types of property except real estate. Assessors in each county of this state and the City of St. Louis may send personal property assessment forms through the mail. 3. Where can I obtain assistance in completing the BPS?