Available Forms: Exemption Forms, Business Personal Property Forms, Other Forms, Human Resources. All forms require the Adobe Acrobat Reader plug-in.You can pay your property taxes via the Dallas County Tax Office website or renew your vehicle registration via the Texas Department of Motor Vehicles website. The forms listed below are PDF files. They include graphics, fillable form fields, scripts and functionality that work best with the free Adobe Reader. All income producing tangible personal property is taxable for county appraisal district purposes. Taxable personal property includes equipment and inventory. For tax questions regarding City of Dallas, Dallas Independent School District, or Dallas County taxes please call customer service at (214) 653-7811. Business Personal Property tax is an ad valorem tax on the tangible personal property that is used for the production of income. Is it difficult to file a BPP rendition?