It gets even worse if you’re from the US, which requires you to continue to pay taxes, even if you’re on the other side of the world. Then you have to pay US taxes and Canadian taxes, or, in the case of one of my friends, US and Finnish taxes.
The US is one of only two countries that attach taxes to citizenship and not current residence. The other is Eritrea, a country mainly known for its near-total lack of civil rights and freedom of the press; a country which regularly sits near or at the bottom of any list or study that attempts to score things like human rights and freedom of speech. Funny, because one of our parties seems to think Eritrea is a cool place to emulate.