Dallas County Tax Office is governed by the Dallas County in Texas. It offers various services, including online property tax payment. Its online property tax payment is designed to help the property owner to pay property taxes online. Dallas County Tax Office also provides services for motor vehicle registration, license and insurance services. The department additionally provides property tax statements, ownership and liens, exemptions and refunds. Its tax collector assesses and collects taxes on all property in the county. The department s special inventory fund collects property taxes on the property value of vehicles sold on a monthly basis. It additionally provides online tax refund form.