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Speaking about the US:
1) Forced taxation of its citizen is in and of itself unconstitutional, i.e. in the US, it is illegal for the government to force its citizens to pay taxes just because they are in the US.
No.
2) However, the law states that all citizens must file a tax return. It is illegal to not file a tax return, i.e. all citizens are forced to file a return.
3) In effect, failure to file is illegal (punished constitutionally) in order to in force taxation (unconstitutionally).
Stop listening to batshit crazies from the intertubes. Do you really think you're the first to think of "it's unconstitutional" argument, snowflake?
I wasn't arguing about whether it is a right or wrong policy or that I was the first to think of it. No special snowflake status for me. I was just conveying how laws are organized around certain issues. I did not get my statements from the intertubes, I got them from Supreme Court Case Florida v. United States regarding the ability to file income taxes as voluntary, i.e. the government doesn't have to do it on your behalf, it gives the citizen the right to do it.
Taxation is NOT voluntary in the US unless in criminal situations and other special cases. I didn't say this. I said
forced taxation is unconstitutional, i.e. using force. You don't go to jail for not paying your taxes. You go to jail for failure to file your tax return, for lying on your forms, etc. This is how the government gets around using actual force. It made it voluntary to file income tax, i.e. gave the responsibility to its citizens. In effect, the government provided the rope to which its citizens voluntarily hang themselves.