Topics How to determine if you are a nonresident, resident, ordual-status alien How to treat a nonresident spouse as a resident alien Useful Items Form (and Instructions) 1040  U.S. Individual Income Tax Return 1040A  U.S. Individual Income Tax Return 1040NR  U.S. Nonresident Alien Income Tax Return 8833  Treaty-Based Return Position Disclosure Under Section 6114 or7701(b) 8840  Closer Connection Exception Statement for Aliens 8843  Statement for Exempt Individuals and Individuals With a MedicalCondition