Deductions & credits

I'm going through the same process. I went to the FAQ page and it seems that Turbotax now supports 1040NR forms.
"This year, TurboTax has partnered with Sprintax.com to provide a secure, easy-to-use online service to help you file your 1040NR tax forms and get your taxes done right. Please visit Sprintax.com for more information."