I have a number of CRV forms from Crypto.tax.trader from the past when I bought- and I used a number of exchanges to purchase the bitcoin- some large purchases and some dollar cost average. Does the bitcoin sold have a ledger that follows it when it's sold? Or would I track down the previous purchases. I purchased and my husband purchased on separate exchanges and combined our bitcoin. We do our taxes combined. This is the first time we have sold bitcoin. How does IRS keep track of it?
