The tax man can verify that bought coins were bought and sold, but not who initiated the transaction. I can buy 5K worth of bitcoins, print them out on a shee

The tax man can verify that bought coins were bought and sold, but not who initiated the transaction. I can buy 5K worth of bitcoins, print them out on a sheet of paper, sell you the paper for 5K. When the bitcoins hit 100K, you sell them. You're the one with a 95K gain, not I.