I didn't follow that. But if you owe the IRS it's not because of the Stimulus payments you got or didn't get. Did your new baby show up on your return and was checked for the Child Tax Credit? See the screen shot on this post. Which box is checked?
https://ttlc.intuit.com/community/tax-credits-deductions/discussion/re-missing-money-from-recovery-r...
Did you add your baby under My Info? Be sure when it asks how long your child lived with you that you pick THE WHOLE YEAR (which is acceptable for newborns) and not just the number of months. Go back and double check that.
