You can choose to be a(n) Computer :
Houston Business Tax Registration ( Business License) All businesses including home, online or mobile BUSINESS need a BUSINESS license because they are BUSINESSES.
For Computer Network Repair work, you need at least a Business License and an EIN. You may still need the seller's permit to charge sales tax and buy wholesale computer parts. Also if you call your service something like "1. Compuclinic Repair-IT," you need to register it with a DBA, LLC, or Corporation. Services Check This Link:Computer Repair