Harris that would be really great! I have similar conundrum: I had filled tax returns for the years 2003 and 2004 through local tax filling agents and so to speak I did not pay much attention on which forms were used to file tax return. The truth is that i was not much aware of or serious about the tax before than now, thanks to Sajha, chiefly, Harris to wake me up! To my surprise, when i checked back with them i discovered that they have considered me as US citizen/GC and filed 1040 EZ for the year 2004 (don't remember the form that they used for the year 2003). Now i came to know that with F-1 visa i am supposed to file either 1040 NR or NR EZ but not 1040 EZ. Obviously i don't want to repeat the same mistake that was done by the tax filling agents. Though i am still not sure 1040 NR or EZ is the most appropriate form in my case (I am always in F-1 status, came to US at the end of Dec, 2002 and have never left US since then). Now, some of my dilemmas to share with Harris and other Sajhaties are- Is there any way to rectify that part of mistakes done by those agents? Or more precisely, is it safe to file 1040 NR or NR EZ without mentioning to IRS that I filed 1040 EZ the pervious year? This is because 1040 NR EZ (which I think is most likely the form that I am supposed to use this year) requires me to answer date of my entry to US and latest year and form number that I used to file income tax return any year before 2005. Any suggestions to this riddle will be greatly appreciated. Thank you.