It would be an instructive exercise for the skeptical reader to try to frame a definition of taxation which does not also include theft. Like the robber, the State demands money at the equivalent of gunpoint; if the taxpayer refuses to pay, his assets are seized by force, and if he should resist such depredation, he will be arrested or shot if he should continue to resist.
Murray N. Rothbard (2015). “The Ethics of Liberty”, p.163, NYU Press