The entire disjointed and bloated gov't safety net apparatus of food stamps, WIC, Rental Subsidies, EITC, disability, unemployment, and more. would go away along with the bloated salaries of the people who run all of those programs.

So massive amounts of tax money would be saved at the start.

UBI is actually a small government conservatives dream.

Then there's also the possibility that the jobs it creates from increased demand due to an economy with a much higher flow of money, could have a deflationary aspect which would allow the money printer to go brr a little bit.

Then also, who know what kinds of new innovation would happen from smart people free to pursue their own goals without worrying about financial insecurity.

Taxes would go up on the rich probably moderately.

But it's doable and affordable and the country would be so much better off in my opinion.