For example, let's say that on eBay, I had a beginning inventory of 30,000 and ending inventory of 22,000. This inventory gets entered on the cost of goods sold area. I receive a 1099-K from eBay with my gross earnings. I also receive a 1099-K from Mercari with the gross earnings. My question is how to go about entering the beginning and ending inventory on the cost of goods sold area for the Mercari 1099-K form when my Mercari platform uses the same inventory as my eBay. When I sell an item off of one platform, I'll then remove it off of the other. platform.
