If you buy a cryptocurrency, that is, any currency, you are already taxed and you lose money, from 1000 it drops to 992... 8 reais in fees... if your money starts to drop, you will take it out, receive another fee in addition to what you lost... and when you go to withdraw, another fee of 3.50... I lost 460 from yesterday to today... just in fees, more than 50, be careful