A negative income tax doesn't mean you get -50% of $400, it means your income starts negative. So someone making $0 gets like $1000 back (say by paying 20% over -$5000).
A negative income tax doesn't mean you get -50% of $400, it means your income starts negative. So someone making $0 gets like $1000 back (say by paying 20% over -$5000).