Automatically calculates local Texas State sales tax exactly where the user is standing. The sales tax in Texas varies, sometimes appreciably, from city to city and county to county, how do you know what it is as you stand in front of that item you want to buy? Sales Tax TX is your mobile solution. Simply open the app, it will find where you are and what the sales tax is in that location of Texas. Enter the price of the item you would like to purchase and any discount the store is offering, click the button and the total price will be shown on your device. It even shows you the discounted price prior to adding the sales tax and the specific amount of this sales tax. Never be confused by store displays on discounts and "we pay the sales tax", know right on your phone how much the final cost of your purchase will be.