You will be able to file, however, TurboTax does not support the 1042-S form. I know TaxFreeUSA does not support this form 1042-S so I looked and unfortunately nor does TurboTax. Here are the instructions I found for you:
Since TurboTax does not directly support the filing of Form 1042-S, you will need to file a Form 1040-NR. See the information in the link below.
Form 1040NR
I hope this helps!
