If you are living in any of these countries then you should go ahead and start a cryptocurrency business as you will pay zero tax for trading, holding and on your earnings.
1. Iran
2. Portugal
3. Malaysia
4. Singapore
5. Malta
6. Belarus
7. Germany
8. Switzerland
I am only aware of the above eight if your country falls in this list then do comment or if you are in a country, where every transaction get taxed. I am trying to compile a list.
So this is not all true in Germany, you have to pay your normal tax rate for all trading profits. The same goes for mining if you want to payout. BUT if you hold a coin for more than 1 year it is free from tax.