You misunderstood how the CTC works. It is not $2000 per child + another $1600 per child.
The total per child is $2000. First the $2000 is used to reduce your tax owed down to zero. When (if) your tax owed is zero, the "rest" of the $2000 can be added to your refund as the Additional Child Tax Credit----up to a maximum of $1600 per child. But....that Additional Child Tax Credit also depends on how much you earned by working.
Take the amount you earned, subtract $2500, and multiply what is left by 15%. That is your additional child tax credit ---- up to a maximum of $1600 per child.
Look at your 2023 Form 1040 to see the child-related credits you received
PREVIEW 1040
https://ttlc.intuit.com/questions/1901539-how-do-i-preview-my-turbotax-online-return-before-filing
Child Tax Credit line 19
Credit for Other Dependents line 19
Earned Income Credit line 27
Additional Child Tax Credit line 28
**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.**
