Was the 2016 return prepared in Online TurboTax, and have you located it in your account when you look in the section "Your Tax Returns & Documents?" If so, what happens when you click the link to print/download the PDF--does it tell you access is locked and asks you to pay? If so, we can tell you how to do that.
How to unlock the 2016 return depends on what all you have done for your 2018 return. Have you already filed a 2018 return with Online TurboTax, or have you started one? Is it in Free Edition, and is it in the SAME account as the 2016 return?
Or do you not plan to use TurboTax for 2018?
