UBI based on sales tax.
Eliminate the income tax code. It's corruption is killing the planet.
UBI without sales tax is inflationary. Sales tax without UBI is regressive. Consumptionism is the problem, and that can only be moderated at the decision point: the checkouts. That's the only place that people make choices now, and they are doing so without the actual facts of consumption at that point.
Humanity has signed its intentionality over to Money at "always low prices". We need to take it back.