For Harris County Appraisal District, most businesses will need to file the general rendition form, 22.15. INSTRUCTIONS: This form must be filed with the township assessor, if any, or the county assessor of the county in which the property is located not later.Business Personal Property tax is an ad valorem tax on the tangible personal property that is used for the production of income. The forms listed below are PDF files. They include graphics, fillable form fields, scripts and functionality that work best with the free Adobe Reader. You must apply to HCAD for any exemptions for which you qualify. The New Business Tangible Personal Property Form is intended for first-time filers only. Your county may have a website to download real and personal property tax forms. Property tax forms should be returned to your county tax officials.