I really don't understand why ideas like the Negative Income Tax aren't being considered before Universal Basic Income. In that scenario, the government just sets an income floor and pays the difference ( https://en.wikipedia.org/wiki/Negative_income_tax ). UBI makes little sense whenever someone making 500K a year still gets it unconditionally. The marginal utility of that is nil, but its tax implications are massiv…
Alternatively, you could say that--even with non-NIT UBI--since we have a progressive tax structure, the net change in taxes for people above some income level will be exactly the same net change in taxes as NIT is proposing. The money has to come from somewhere after all.