So says Diana Furchtgott-Roth here:
The Cain plan gets rid of payroll taxes, about $15,000 on an income of $100,000, whereas the Perry plan does not. So under the Perry plan, our hypothetical family would pay $25,000, compared with $14,970 under the Cain plan. That's an extra $10,000.
If Cain could get rid of the payroll tax as well as keep tax rates to 9 percent, many taxpayers would gain substantially. But he has not said how he will replace the payroll tax revenues or transition to private accounts.
