None. Crypto gains is not taxes in where I live. You can make a hundred million dollars from crypto trading and never pay a dime to the government. It is hard to fine a trusted local crypro exchange though. You’ll never know when the exchange will ask the proof of origin of your coins or other stupid questions because if you are crypro rich in their eyes you are either a drug dealer or a shady guy who does othee shady stuff. They don’t want to believe that you became rich fair and square. Paying taxes for crypto gains is no good. Trading assets in general shouldn’t be taxed.