I forgot to input income for disabled 20 year old qualifying child. return done, not yet e-filed.How can I correct this?

[VolvoGirl]

What income?  You don't include their income on your return. It would only go on their return if they are required to file one.  If they only get ssi or SS, SSDI or a SSA-1099 they don't have to file a return and nobody reports it.

Filing requirements for a dependent

https://ttlc.intuit.com/community/children-dependents/help/do-i-need-to-file-my-own-taxes-if-i-m-a-d...

[DaveF1006]

Just one added note. If your child has income to report other than what is mentioned above, they will file their own return but indicate they are a dependent of someone else as they complete the MY INFO in their return. Also there is a checkmark below that entry that indicates you will claim this person on your tax return.  Here is what the screen will look like.