LogFAQs > #980022328

It should be enough for a single person to afford a studio apartment, extremely cheap/basic food, basic healthcare (if there's still no Medicare for All, which there should be), plus another 20% for transportation costs, clothing, other stuff.
If it's a family, then enough for like a 2 bedroom apartment and the above for each person.

Basically, it should be just barely enough to survive on, no more. You want nicer home/food/etc... or travel, get a job. Since it's UBI, you keep it if you work.

The amount should be based on median cost of living for the U.S. Higher COL areas like NYC should have to provide supplemental UBI boosts to cover the gap. Basing national UBI on high COL areas is untenable. Can easily become 3x the cost of rural areas, or more.