The permit law applies whether you sell items through your own online store, a third-party website such as Amazon or Etsy, or an online auction platform such as eBay or uBid. You must also get a permit if you regularly sell goods through online classified ads such as Craigslist.
What if I’m Already Licensed to Do Business in California?
You must get a seller’s permit for your online business even if you already have a business license. That’s because a seller’s license or permit is distinct from business permits or licenses. The former allows you to collect sales tax from California customers, and the latter gives you permission to do business in the state.
Is a Seller’s Permit the Same as a Resale License
No. A resale license allows you to buy inventory from a supplier without paying tax. In other words, it exempts your business from paying additional taxes when you buy goods that you will later sell. It has nothing to do with your obligation to collect taxes from your customers.