GOP may OK tax increase that Obama hopes to block - CBS News At issue is a tax that the vast majority of workers pay, but many don't recognize because they don't read, or don't understand their pay stubs. Workers normally pay 6.2 percent of their wages toward a tax designated for Social Security. Their employer pays an equal amount, for a total of 12.4 percent per worker. As part of a bipartisan spending deal last December, Congress approved Obama's request to reduce the workers' share to 4.2 percent for one year; employers' rate did not change. Obama wants Congress to extend the reduction for an additional year. If not, the rate will return to 6.2 percent on Jan. 1. Obama cited the payroll tax in his weekend radio and Internet address Saturday, when he urged Congress to work together on measures that help the economy and create jobs. "There are things we can do right now that will mean more customers for businesses and more jobs across the country. We can cut payroll taxes again, so families have an extra $1,000 to spend," he said.