Should I use 2018's AGI number when efiling or is it asking for 2017's AGI?

[jcirami]

This is for 2018's taxes.

[DoninGA · Accepted solution]

You need the 2017 AGI to e-file the 2018 tax return.

To access your prior year online tax returns sign onto the TurboTax website with the userID you used to create the account - https://myturbotax.intuit.com/

Scroll down and on the section Your tax returns & documents click on Show.  Click on the Year and Click on View adjusted gross income (AGI) 

You can also get free transcripts of your federal return from the IRS - http://www.irs.gov/Individuals/Get-Transcript