Sales tax takes care of that. 10 cents on a dollar is going to be inconsequential to a poor person. But to the Uber rich it equates to millions of dollars per year in taxes. And they can't avoid paying out like the do income tax. If I make 40k a year, I'll have paid 76 dollars a week in taxes if I spend my entire paycheck. That's less that what I currently am paying in income tax right now, which helps me out. But a rich person who pulls in a million a year will pay 1,923 a week in taxes if they spent it all. One large purchase, like a luxury car or a boat, or even going out to high end restaurants will be exponentially more taxes than the average consumer will ever dream of paying. And I'd wager that you wouldn't collect any less taxes from the rich than from our current system full of tax breaks and loopholes. Tax accountants wouldn't be necessary. The IRS wouldn't have much to do. Those who don't work and are on welfare/food stamps are exempt from sales tax anyway. Sales tax isn't charged when you pay with welfare/ food stamp cards. So it really will only affect the working class (for the better) and the rich.