EBay is necessary to collect your legitimate TIN (SSN, EIN, or ITIN). After you don’t give your valid TIN or perhaps the IRS notifies eBay that the title/TIN mix doesn’t match their records, eBay blocks your payouts. eBay sends B Notices to your deal with on your own eBay account. https://apc1040.com/what-is-a-1099-k-tax-form/