If you came on an F-1 visa in 2015, you are considered a nonresident for 5 years or part years.
So 2015 would be your first year you are exempt from counting US days. Your 5 years would be 2015, 2016, 2017, 2018, and 2019.
Next year for 2020 tax year, you will need to file a resident return.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
