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. Gov or fax the application to 512-936-0010.Discover the three basic tax types—taxes on what you earn, taxes on what you buy, and taxes on what you own. He has also raised the notion of replacing federal income taxes with tariffs. Which forms will I need to file? For Harris County Appraisal District, most businesses will need to file the general rendition form, 22.15. The District Clerk's Office accepts the following forms of Payment: 1. Cash Bring your cash payments to the Civil Courthouse.