Alex Opal, single, claiming one exemption, has cumulative earnings before this biweekly pay period of $126,800. He is paid $1,940 this period. Calculate Alex Opal's net pay. The FICA tax rate for Social Security is 6.2% on $127,200, Medicare is 1.45%, state income tax rate is 5%, and health insurance is $42. (Click the icon to view the Single Persons-Biweekly Payroll Period federal income tax withholding table.)