If he were to let the payroll tax apply to high incomes, too, he would add another 12.4%, split between employee and employer.

如果他打算对高收入也征收薪工税的话，他还会另外加上12.4%，由雇员和雇主平摊。

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This agreement would also mean a 2 percent employee payroll tax cut for workers next year -- a tax cut that economists across the political spectrum agree is one of the most powerful things we can do to create jobs and boost economic growth.

WHITEHOUSE: President Obama on Tax Cuts and Unemployment Extension

"Given the continuing high levels of unemployment, we can expect little to no impact on small business wages and employment levels from the return of the employee payroll tax to its previous level, " said Susan Woodward, the economist who worked with Intuit to create the indexes.

WSJ: Intuit: U.S. Small-Business Employment Up in January

The payroll tax holiday (or the payroll tax cuts) meant that, on the employee side, payroll tax contributions for federal purposes are reduced by 2% for 2011: instead of paying in at 6.2% for Social Security taxes, contributions for 2011 are 4.2% for Social Security taxes.

FORBES: Monday Night Vote Lessens Chances of Payroll Tax Cut Approval