Get your taxes done using TurboTax

What are you doing?    Are you currently preparing a 2017 return?   If so, how???  

A 2017 return cannot be prepared in Online TurboTax.  A 2017 return has to be prepared in 2017 desktop software (CD/download) installed on your computer.  And since a 2017 return cannot be efiled, a 2016 AGI is not needed, at least for filing purposes.

Hopefully you are not mistakenly preparing a 2017 return in Online TurboTax, which is only for 2018.