If you filed jointly last year and you are filing again so this year, then you
will both use the same AGI from last
year’s jointly filed return.
You
can read below about where to find your AGI.
https://ttlc.intuit.com/replies/3301618
How to get a copy of your return if you did
use TurboTax Online:
https://ttlc.intuit.com/replies/3301525
If you didn't use TurboTax
Online to file last year (and/or you don't have a copy of your
return) then you'll need to request transcripts
from the IRS or file by mail:
https://ttlc.intuit.com/replies/3301999
https://ttlc.intuit.com/replies/4170366
If you did, but can't access your TurboTax Online account or your prior year data isn't showing up in
your account, then read below:
https://ttlc.intuit.com/replies/5667209
