Hi there, This is a very useful . I have a quick question. I wrongly filed 1040A in 2010. I am on F1 visa. Should I refile 2009 tax returns along with 2011 taxes? Please help me. I am confused. Does anyone know what is the penalty for such mistakes? Thanks, Viks

You need to amend the 2009 return using Form 1040X, plus attach a properly-prepared Form 1040NR-EZ with the word "AMENDED" on the top of the first page. Further, you also need to submit a Form 8843.

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