I was an international student (F-1 VISA) until October 1, then my VISA status was changed to H-1. Should I file my income tax return as Dual Status or Nonresident Alien?
Assuming you were not in the U.S. on your F-1 student VISA for over 5 years, you may file as a nonresident for the entire year or, if you qualify under the first year choice, you may file as a dual-status alien. Please refer to Publication 519, U.S. Tax Guide for Aliens, for additional information.