People are taking more and more interest in crypto currency it is because they have no tax in crypto currency because a lot of countries are taking a large income tax due to which more familiar have a great difficulties in paying because of their weak financial problems.
As they are saying, the life force in every years fund of ones country is because they are drinking on the tax, in transactions its impossible to looth tax into BTC but we can have a deal or example an employer is a shift engineer and he is earning 5000 dollars per month, he will just receive 4000 dollars plus because he has a deal in the company that tax and some other payments will be deducted on his salary and the company will pay him 4000 dollars plus in BTC. There are so many ways to use crypto including the payment of tax so dont worry.