I sell a few things on Ebay for two reasons: to get rid of household items we don't need anymore (consolidated 2 houses into 1) and to resell extra crafting items I won't use for a very small profit (helps fund purchases of more crafting items). I didn't know about the $600 threshold until recently. Now I'm not sure what to do with the 1099-K as I don't have receipts for the household golds and I'm now at $3000 in total sales. I wish I knew about this earlier and I would have just donated all the stuff instead of selling it.