Gud:
For 2003, you need to file Form 1040X to amend your return. You should attach a completed Form 1040NR to the Form 1040X to file properly as a non-resident alien. You should amend your 2003 return before you file the 2004 return, and send the amended 2003 return to the Philadelphia IRS Center. If you need more detailed guidance, contact me at
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For both 2003 and 2004, you may claim the standard deduction due to your OPT status.