As a nonresident alien you cannot use the IRS Form 1040 but must use IRS Form 1040-NR. TurboTax does support a Form 1040-NR
See this TurboTax support FAQ for a Form 1040-NR - https://ttlc.intuit.com/community/forms/help/does-turbotax-handle-form-1040nr-for-nonresident-aliens...
