For 2020 , the social security tax rate is 6.2% (amount withheld) each for the employer and employee (12.4\% total). The social security wage base limit is $137,700. The tax rate for Medicare is 1.45% (amount withheld) each for the employee and employer (2.9\% total). There is no wage based limit for Medicare tax; all covered wages are subject to Medicare tax. Aaron is a self-employed contractor with 2020 eamings of $176,000. Calculate the total social security and Medicare taxes paid by Aaron in 2020. .5 To avold penalties, Aaron makes quarterly payments of his social security and Medicare taxes to the IRS. Each quarterly payment is 41 of the total social security and Medicare taxes for the year. How much should Aaron send to the IRS for social security and Medicare each quarter? $