In order to unlock your prior years' returns, you'll need to go ahead and make payment for your TurboTax Deluxe 2018 program, even if you haven't yet filed your 2018 return. See the instructions in the TurboTax FAQ below.
https://ttlc.intuit.com/replies/6679627
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
