This is a change of many, which ensures that also not in the future? it is not clear what is profit for the Revenue... The laws in Brazil only did this, Brasilia is a gang that extorts the people, state can change what they want and when they want; In Brazil these are a much worse Oligarchy than in Russ

Did Brazilians not previously pay capital gains taxes on crypto? Or does this count as something different from capital gains?

Hodlers don't need to worry though. only gains get taxed in this law.