Hi,
During 2004 , I was in F-1 for 9 months and switched to H1B for the rest. And I filed 1040NREZ and got my tax refunds. My employer has deducted ss and medicare. I didn't know that there is no need to pay for ss and medicare if it is dual status year. I came to know this just today... Is there anyway I can amend and file the form 843 and get the ss/medicare I paid during 2004 back? Or it is just gone?