If an inpatriate is from a country that has a totalization agreement with the United States:
a. he/she must pay OASDI and HI; however, the employer need not match.
b. he/she will not have social security taxes withheld on U.S.-sourced income.
c. he/she will be impacted by the .9% Medicare tax.
d. he/she is only subject to OASDI, but not HI.