Why is it asking for my 2018 AGI number?

[redelvises]

I used turbo tax last year

[mesquitebean]

Most people will need their 2018 AGI to verify the efile of their returns (a lesser number of folks still have their 2018 Self-Select PIN and may use it instead, if necessary.)

If you used Online TurboTax last year, and if you are in the same online account, data including the 2018 AGI should have transferred into your 2019 return automatically.    When you go to the Tax Home, do you see your 2018 return in that account when you scroll down to the section "Your Tax Returns & Documents", expand that section, and choose tax year 2018?     In addition to the 2018 PDF, there should also be a link there that says "View adjusted gross income (AGI.)"

If you don't see evidence of your 2018 return there, we can tell you how to look for multiple accounts.