Bletchleyite
Veteran Member
I don't want to sidetrack this thread so will only comment on this suggestion once, but it seems to me that such a system would rapidly result in inequity. "Income" and "spending" would need to be defined, for a start: e.g. are capital gains "income", and are investments "spending" (and if the answer to both is "yes", we would have the paradox that one can earn income on what one is spending).
It's probably be easier just to impose a wealth tax and abolish VAT. I really dislike VAT as a tax - it is regressive, and it discourages spending - one benefit of Brexit is that we will no longer be forced to charge it.