If I make money on crypto currencies. How do I avoid as much tax as possible?
Op, the only way in which you can avoid paying tax from your bitcoin and crypto currency earning is for to relocate from your current country to country where taxes are not paid on crypto currency related activities such as Nigeria.
That is one of the option is to create a setup or register a company outside where their is not taxation. Another thing is that you can split the investment between your family members or whose income is very less so that the tax burden would reduce drastically. Total avoidance of tax could bring you in a legal trouble.