Cant remember what my 2018 gross income was?

[VolvoGirl]

You need your 2018 AGI to efile 2019. The AGI is on 2018 1040 line 7. If you filed a Joint return you use the same AGI for each spouse.
https://ttlc.intuit.com/community/agi/help/how-do-i-find-last-year-s-agi/01/25947

Or see the screen shot by critter on this one,
https://ttlc.intuit.com/community/taxes/discussion/re-i-m-order-to-complete-my-taxes-it-is-asking-me...