I agree with his judgment that Bitcoin can ultimately kill the tax in its current form. But the prerequisite is that Bitcoin improves in terms of privacy. And it will not happen as a smooth transition, because the resistance by people who source their power from taxation will be fierce. First of all we will see more supervision and harassment by the official.

Yeah, thats why some government are againts to bitcoin, its hard to regulate and no tax, its really hard for them to accept because taxes are the main fund of the government.

          How can Bitcoin kill the income tax  It is too difficult  to accept it  because we buy goods and services by only exchanging the Bitcoin to cash and it can be taxed .The government is so powerful and they can impose tax, this tax system have being imposed since in primitive age and it is not a new project for a country . Tax is used to build and improve the facilities  of a country and to give aid to the less fortune.

Im not sure if the bitcoin can kill the income tax. Bitcoin have no tax and some country didn't accept the Bitcoin because they have no tax.

Although that may truly happen, I think that governments would not let people just circumvent them and the law like that. Therefore, if you see that since there are some features of using cryptocurrencies that could be used to avoid the imposition of taxes, I am sure that government entities would find a way to use that to their advantage and capitalize on it, because after all, the cryptocurrency is a big market that could really bring in a lot of revenue. Also, taxes are the lifeblood of any government, so I don't think that they will just let any system decrease that, because in the end, it's the people who will suffer.

Will,this implication that  bitcoin is killing the income tax return,of government,is not been happen and prevented if cryptocurrency is been legalized and regulated in each system of different country, actually this is the only hindrance why the government cannot collected tax into the cryptocurrency investment ,that can be used in improvement of economic growth and other infastracture project.

Bitcoin will be able to significantly affect the tax system only when all people, or at least 70 percent of the country's population, will use only bitcoin. But I don't think it will happen in the coming decades.

this is not entirely true because first of all bitcoin is mostly an investment not our salary or day to day money to spend. and also it is because of this simple thing that there aren't taxes yet on bitcoin and its usage. and that will change if bitcoins starts to become more popular for payments and for salary.

Of course, how to tax what is not?