This publication is for visitors to the United States. If you have income from sources within the United States, you may have
                        to file a U.S. income
                        tax return even if you are only visiting this country. For purposes of this publication, a “visitor to the United States” is a “nonresident
                           alien.” This publication summarizes the requirements of U.S. income tax law relating to nonresident aliens and is for nonresident
                        aliens only.
                        
                     
                     You are a nonresident alien unless you are either a U.S. citizen or a resident of the United States. To be a resident of the
                        United States, you
                        must meet either the substantial presence test or the green card test.
                        
                     
                     Substantial presence test.
                                You meet the substantial presence test if you are physically present in the United States on at least:
                        
                        
                           
                              - 
                                 31 days during the current year, and 
- 
                                 183 days during the 3-year period that includes the current year and the 2 years immediately before that, counting:
                                    
                                  
                                    
                                       - 
                                          All the days you were present in the current year, and 
- 
                                          1/3 of the days you were present in the first year before the current year, and  
- 
                                          1/6 of the days you were present in the second year before the current year.  
 
 
 For more information about the substantial presence test, see Publication 519, U.S. Tax Guide for Aliens.
                        
                        
                      
                     Green card test.
                                You meet the green card test if you are a lawful permanent resident of the United States. You generally have this
                        status if you have been issued an
                        alien registration card, also known as a “
green card.” You continue to be a resident under this test unless the status is taken away from you or
                        is determined to have been abandoned. For more information about the green card test, see Publication 519.
                        
                        
                      
                     Dual-status alien.
                                You can be both a nonresident alien and a resident of the United States during the same tax year. This usually occurs
                        in the year you arrive in or
                        depart from the United States. Aliens who have dual status should see chapter 6 of Publication 519 for information on filing
                        a return for a
                        dual-status tax year.
                        
                        
                      
                     
                           
                        Under U.S. immigration law, most visitors who come to the United States are not allowed to work here. You must check with
                        U.S. Citizenship and
                        Immigration Services (USCIS) before getting a job.
                        
                     
                     Comments and suggestions.
                                We welcome your comments about this publication and your suggestions for future editions.
                        
                        
                                You can write to us at the following address:
                        
                        
                           
                              
Internal Revenue Service
                              
Individual Forms and Publications Branch
                              
SE:W:CAR:MP:T:I
                              
1111 Constitution Ave. NW, IR-6406
                              
Washington, DC 20224
                           
                         
                        
                        
                                We respond to many letters by telephone. Therefore, it would be helpful if you would include your daytime phone number,
                        including the area code, in
                        your correspondence.
                        
                        
                                You can email us at
                        
*taxforms@irs.gov. (The asterisk must be included in the
                        address.) Please put “
Publications Comment” on the subject line. Although we cannot respond individually to each email, we do appreciate your
                        feedback and will consider your comments as we revise our tax products.
                        
                        
                      
                     Tax questions.
                                If you have a tax question, visit
                        
www.irs.gov or call 1-800-829-1040. We cannot answer tax questions at either
                        of the addresses listed above.
                        
                        
                      
                     Ordering forms and publications.
                                Visit
                        
www.irs.gov/formspubs to download forms and publications, call 1-800-829-3676, or write to the National Distribution Center at the
                        address shown under 
How To Get Tax Help in the back of this publication.