T he Social Security payroll tax hurts working Americans–and it’s getting worse. Because the tax (a flat levy of 15.3 percent, combining the nominal employer portion with the nominal employee portion) applies to income only up to $97,500 (with a scheduled increase to $102,000 this year), it is inherently, grossly regressive, falling far more heavily on working Americans than on the rich. At the same time, as a result of rising pre-tax wage inequality, the payroll tax system is growing dramatically more regressive.