Quote from: satscraper on Today at 10:18:17 AM

Tax on any obtained profit resulted from crypto related activity ^{sell, exchange, pay for goods} has to be paid in accordance with the regulation of the given country. Some countries exempts matured crypto ^{i.e. crypto which is in users wallets for the long period of time} while others don't allow any exemption. The attempt to hide your crypto-profit from taxation may result in the penalty, jailing including, similar to early BTC investor who was " jailed for unreported crypto gains in $4M BTC sale".

I get that, but we're drifting off topic. Since the broker is preparing your tax forms, The question is: How do they know what transfers to the exchange are classified as profit and what's classified as donation. There are no notes or memos transferred with the addresses.