Weirdly, the UK is actually pretty sensible when it comes to crypto taxation, which I note only because normally I'd expect us to have the daftest system in the

Weirdly, the UK is actually pretty sensible when it comes to crypto taxation, which I note only because normally I'd expect us to have the daftest system in the world. Here you are taxed only using Capital Gains Tax (20%, after the first ~£12500) which in theory applies to any increase in your assets, but only once you sell and convert the value back into GBP. So here Vitalik would owe nothing if he never traded out for "real" money, and then it only applies on your total capital gains in a year: you don't pay it per transaction when trading (although I think if you were a professional trader there would be some other tax handling around that).