RE: June numbers3 Jul 2021 19:49
Steve - no, the trigger to crystallise CGT is the sale of a (any individual crypto I.e. BTC/ETH, for another Crypto or back to Fiat), not the act of withdrawing Fiat from an Exchange.
I think a lot of people do not understand this and potentially exposed to significant CGT penalties if/when HMRC find out, and find out they will...
The tracking of buying/selling/associated fees etc is actually pretty complicated and can only be tracked by using dedicated software to ensure the CGT pooling rules are applied etc.