Nothing is to be entered on your 2020 tax return about the $1400 3rd stimulus check. That is completely separate from your 2020 tax return. You were supposed to enter your child as a dependent--which it seems that you did, and then use the recovery rebate credit section to show how much you did actually receive---the amount for the adults or other children (if any).....and the amount for your baby should have shown up on line 30 of your Form 1040. Look at your Form 1040---is there an amount there? You could have received up to $1100 for her.
If nothing is on line 30 for your new child then you can amend and this time use the recovery rebate section in Federal Review. All you enter there is what you DID receive---not what you did not receive.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
