FICA Withholding Rates 2012 Employee Withholding Rates: FICA: 4.2% Medicare: 1.45% Employer Withholding Rates: FICA: 6.2% Medicare: 1.45% Employee portion of FICA will remain at 4.2% through the end of February when it will be returned to 6.2%. January 5, 2012Leave a commentIndustry NewsBy