UBI and Negative Income Tax are two terms for the same thing. Well, according to Wikipedia, NIT is one implementation of UBI (https://en.wikipedia.org/wiki/Nega

UBI and Negative Income Tax are two terms for the same thing. Well, according to Wikipedia, NIT is one implementation of UBI (https://en.wikipedia.org/wiki/Negative_income_tax https://en.wikipedia.org/wiki/Negative_income_tax). I suppose that's fair, but it's the most obvious implementation. Either can be large or small; that's not part of the definition.