Hello, We provide a subscription software application and it is my understanding that we need to pay sales tax for users that are located in the same state as where we are based (TX). I am currently only using Paypal for payment processing and with that I do not have access to users billing address. Our sign up form does not ask for the subscriber's address so we currently do not know who is in our state and whom we need to be paying sales tax for. Is there a best way for getting this information to stay compliant? On another note, I am going to try to move over to a different payment service and considering authorize.net. I do not know if that will provide the information needed or not. Any help would be great!