No More Poshing?

Poshmark has been my go-to for selling all the pretty things that I like but don't love or that I love but don't wear. Until now. Don't get me wrong, I still love Posh and use it all the time but I've decided to stop selling. Apparently Uncle Sam is going to start coming after clothing sellers like me because even though I paid taxes when I bought the clothes, as did the retailer who sold them to me, and even though the person who bought them from me also paid taxes on them as did Posh on their fees, Uncle Sam wants me to pay again. I'm no accountant, but my understanding is that unless I can prove each sale was a loss, not a profit, which they ALL are when...