I am an F-1 visa student and a resident alien for tax purposes. My summer intern company did not withhold FICA tax. How to amend 2018 return to pay the owed FICA tax?

I could not find the entry in the turbotax form that allows me to pay the corrected amount of tax due to this problem, something like "other tax I need to pay". Should I ask the payroll office of my employer for help?

After you file

I believe F1 Visaholders are exempt from FICA taxes for that portion of wages earned under an F1 Visa.

 

https://www.irs.gov/individuals/international-taxpayers/foreign-student-liability-for-social-securit...