alexa345

I bought a used phone on Swappa as a temporary phone. I used it for a couple of months and then resold it on Swappa for about $20 less (list price) than I bought it for. I was wondering why I am being charged sales tax for a used item. I am not a business or professional seller, I sold the phone for less than I bought it for. Seems like sales tax is not required in my situation from what I have seen online. can I consult with a Cpa firm