If I had a child in July 2021 shouldn't I be getting the 3,600 child tax credit, and back pay for payments from July to December?

[rjs]

The $3,600 Child Tax Credit is the entire credit for the year. It includes what would have been paid monthly if you had received advance payments. There is no additional "back pay" besides the $3,600 credit.

When you entered the information about your child, TurboTax asked how many months the child lived with you in 2021. Did you answer "the whole year." That's what you have to say for a child that was born during the year.

You should see the $3,600 credit on your tax return on Form 1040 line 28. That credit is applied against your tax for the year.

[LeonardS]

Yes, if you had a child born in July 2021 you are eligible for the full $3,600 Child Tax Credit (CTC).  When you add your child that was born in 2021 as a dependent on your 2021 tax return TurboTax will automatically add the CTC to your return.  This will include the advance you did not receive from July to December as well as the remaining CTC you are due.

To add your child follow these steps: 

1. Open or continue your return in TurboTax, if you aren't already in it.
2. Select My Info in the left navigation.
3. Select the Add a dependent button to add your child.
4. When we ask how many months your newborn lived with you, always answer The whole year, even if your baby was born on the last day of 2021.