Hey guys, I need to ask few things too. I came to US in spring 2006 and I am on assistantship. I filed 1040 EZ form and unfortunately I owed them additional tax. My total earning was $ 15,000 as per my W2 and I paid $ 1250 exclusively as federal tax for the entire 06 year. It didn't seem normal to me and I talked to financial manager at my department; she says something must be missing and that I should not owe them any tax given my low income and tax I paid for the entire year. But I couldn't figure out anything that I missed to fill in the 1040 EZ form neither could she. The only reason I could come up with was our country not having tax treaty with US makes my taxable income high. Well, I would highly appreicate any input from you guys.