San Antonio, Tex. 78204. Texas imposes a 6.25 percent state sales and use tax on all retail sales, leases and rentals of most goods, as well as taxable services.The GST Act does not prescribe a specific format for the authorized signatory letter. You will need to apply using form AP-201, Texas Application (PDF). Airline Name: Flight Number: Date: In order for your complaint to be considered complete, you must file within 180 days of the alleged act of discrimination. Tax Assessor-Collector. This dynamic PDF is not fillable if you open it in your internet browser. Please use these steps to download, save, and fill out the form.