Since you are not eligible to file a Form 1040, you will need to "undo" your filing by amending your return. When you amend, you will need to delete or change all of your entries to $0. The TurboTax Amend feature will not be ready until 03/25-2021. To be notified when it is ready, click on Email me when this form is ready.
You will need to file a 1040-NR. Although TurboTax doesn't support IRS Form 1040-NR (U.S. Nonresident Alien Income Tax Return), we have partnered with Sprintax to offer both federal and state tax preparation for international students, scholars, and nonresident foreign professionals.
Please visit the TurboTax/Sprintax site for more info.
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