I was in the United States in summer 2017 as a student intern on an exchange visitor program. Now I returned to my home country and got a notification to file Federal tax return for the calendar year 2017.
Tax amount was with-held from the payments made to me. Upon using tax prep software to prepare the returns, I came to know that I overpaid the taxes and am due a refund.
Also, I don't have an SSN or ITIN and was informed to attach ITIN application along with the tax returns. Applying for an ITIN from abroad seems to be a daunting task for me. Since I am due a refund, is there a provision to file late returns? I am returning to the United States for my graduate studies in Fall 2018.
Any help will be appreciated.