Was your 2016 return prepared with Online TurboTax? If so, log in to your account and look in the section "Your Tax Returns & Documents." Choose tax year 2016, and look for a link to download/print the PDF. Do you find evidence of your return there OK, but when you try to download, does it ask you to pay? If that's your situation, we can tell you how to pay for your 2018 return in order to unlock the 2016 return. The method to unlock it depends on what all you have done with your 2018 return.
If you find no evidence at all of your 2016 online return in that account, we can tell you how to look for multiple accounts. A return prepared in desktop software (CD/download) will not be in an online account.
Have you filed a 2018 return in Online TurboTax, or is one still in preparation? Or did you file elsewhere?
Was the 2018 return prepared in Live Premier (that's what is indicated with your question above.)?
Is the 2018 return in the SAME account as the 2016 online return?
We can tell you how to unlock a return once you answer all the questions above.
