in your country income from bitcoin taxed? state the country
in my country the tax from bitcoin still has not been done, because my state government does not take action to have bitcoin or use it in state finance.
if you have to pay taxes in your country you have to pay taxes based on your income or profit. It usually works that way.
So, if you have profit from the operations with Bitcoin - your have to pay some taxes when you convert BTC to fiat and have profit.