From sole propr., San Antonio LLC, TX partneship or TX Corp.: Each requires an entity certificate filing.
All Sole Proprietorship businesses/entities need a business license and an EIN.
Selling/Buying wholesale or retail requires a San Antonio seller's permit.
You can choose to be a(n) :
Crosby Business Tax Registration ( Business License) All businesses including home, online or mobile BUSINESS need a BUSINESS license because they are BUSINESSES.