And as with all things government, it's the opposite of what it's named. The fair tax is anything but fair. If you only tax spending, then the rich, who spend far less than their income, can effectively avoid taxation of most of their earnings by simply living below their means, which they do anyway because that's what being rich is. If I make a million a year but consume like someone making 100k a year, I only pay taxes on 1/10 of my income; hardly fair since the guy actually making 100k is paying taxes on 100% of his income.