Social Security (OASDI) - Medicare (MED) - Unemployment Taxes
Nonresident Aliens who are in the United States on a J-1, F-1, M-1 or Q-1 Visa are usually exempt from Social Security (OASDI) and Medicare (MED) taxes. While Nonresident Aliens who are in the United States on an H1B, TN, O1 or J2 Visa are subject to Social Security and Medicare as well as unemployment insurance taxes.