It requires much higher taxes and/or central planning, as this thread' poll suggests. It will result in even more involvement of govt in every day life. It will result in more tax evasion and thus a war against tax evasion.
Therefore a probably outcome is nationalization of the means of production by state, so corporations' owners won't be able to hide profits.
I'd expect the prison population of BIG countries to exceed that of the US today if BIG is financed through taxes. If, for example Switzerland were to introduce BIG and finance that partly through VAT, the current habit of Swiss people to shop and fill the tank in neighboring countries can no longer be tolerated. Bern will need more, much more law enforcement.
If basic income implemented, I think most countries will shift from imprisonment to property confiscation as a punishment.