SSN and Medicare tax issue
Hello Sir,
I came to United State in January, 2002 on F-1 visa and graduated in August 2006. I got my OPT in September, 2006 and my OPT ended in September, 2007. The issue over here is that I have paid SSN and Medicare taxes since January, 2007 and I was still on my OPT. I tried calling HR and they said that I have been in USA for over 5 years so even though I am on my OPT, I still have to pay SSN and Medicare taxes. My friends in the same situation but in different organizations are not paying SSN and Medicare taxes. Please provide me with a better understanding of my issue. I will appreciate it.
Thanks
Salman