All owners of business personal property must complete and return a personal property declaration to the Assessor no later than November 1st annually. The Franklin County Tax Assessor's Office is responsible for listing and assessing business and professional property for ad valorem taxation.Who Should File: All owners of taxable personal property. If you no longer own the above noted business or personal property assessed in your. Search tax forms and instructions. How do I fill this out? This section will guide you on how to fill out the Franklin County Business Personal Property Itemized Listing form. Both unpaid Real and Personal property will be included in the annual Advertising List that is included in the local paper starting the first part of May. You may download Franklin County tax forms here. In order to view and print these forms, you must have the Adobe PDF reader installed on your computer.