Get your taxes done using TurboTax

If all you need is the 2017 AGI, there should be a free link in the old account to get it.

Log in and go to the section "Your Tax Returns & Documents".  Expand that section and choose 2017.  Then look for a link "View adjusted gross income (AGI.)"

Otherwise, we can tell you how to phone TurboTax Support tomorrow to unlock the other returns.