TurboTax does not support nonresident tax returns (Form 1040NR). Use our partner Sprintax.com to file you return.
TurboTax needs a correct federal return to properly compute you California return because CA tax is based on federal. You will not be able to prepare a correct CA return in TurboTax if you file Form 1040NR because that form will not match up with Form 1040 in TurboTax.