What will happen on BTC if the government will said that all the bitcoin holder have to pay their tax??
Maybe the expansion of BTC community will get low than usual.
At the present time you can see that bitcoin is very little recognized in the world and for legal use, so bitcoin is also not taxable. So many individuals or organizations use bitcoin as a tool for money laundering and illegal transactions. Because there is no state control, the price of new bitcoins fluctuates sharply and is controlled by sharks.
Bitcoin can be taxable if it will be legalized in our country. As for now the government has no control to it so it is hard for them to declare a taxable bitcoin because they don't even know who are these people are involve in bitcoin, since it is anonymous.