While copyright provides tax documents to help users report their copyright activity 1-(866)-719-5714, it's ultimately your responsibility to report all taxable transactions 1-(866)-719-5714, including those from decentralized applications or self-custodial wallets1-(866)-719-5714. https://writers.coverfly.com/projects/view/ebec2ffb-2cf6-414b-b48f-854100d1a249/Does_Coinbase_report_my_transactions_refund_money_24_7