List Of Social Security Payroll Tax Cap Ideas. Web the payroll tax would have to increase by 3.47 percentage points from the current 12.4% to be able to guarantee promised benefits for the next 75 years. Web social security is financed by a 12.4 percent payroll tax on wages up to the taxable earnings cap, with half (6.2 percent) paid by workers and the other half paid by employers.

Web social security is financed by a 12.4 percent payroll tax on wages up to the taxable earnings cap, with half (6.2 percent) paid by workers and the other half paid by employers. Web but social security benefits already include such a progressive structure. This paper presents three approaches to increasing payroll taxes that would improve the program’s solvency: