Hi,

I was wondering if anyone could help me in telling me what forms I have to fill in for my taxes. I am an intern who works in the USA full-time on a J1 visa and so I would like to know the forms I have to fill in and if I am exempt from any taxes I have already paid? I arrived in June 2008 and I will be leaving at the end of June this year.

Any advice would be gratefull.

On J1 you are exempt from residency for 2-years. You must file non-resident tax return and Form 8843. Your income is not subject to FICA taxes but you must pay federal and state income taxes.
Read: Your U.S. Tax Return: U.S. Tax Filing Requirements for Non-Residents

You can probably also deduct your daily living expenses because your internship meets the criteria of being a temporary job assignment.

Depending on where you are working, these deductions could have the effect of completely offsetting your federal and state income tax liability.