>If each and every transaction is not recorded at the time of execution, good luck trying to get that detail back again. I did some crypto trading on an exchan

>If each and every transaction is not recorded at the time of execution, good luck trying to get that detail back again. I did some crypto trading on an exchange, and while it was able to give me the amounts I traded, it didn't tell me the price of those coins at the time of the trade, or my cost basis for when I got each coin to tell if that trade was a loss, gain, or wash. There was truly no way to be honest about those trades. Luckily I was only playing with small potatoes, it would be a nightmare if I traded in amounts the IRS would care about.