Why am I only receiving 1100$ for my child born in july of 2020

Be sure to say that the child lived with you all year (which is okay for newborns).

Are you saying that you computed a Recovery Rebate Credit on line 30 of your 2020 Federal tax return that equaled $1,100?

 

That would equal the sum of $500 for stimulus payment 1 and $600 for stimulus payment 2.

 

Did you previously received both stimulus payments for yourself?

 

You can access your stimulus check choices by following these steps:

• Down the left side of the screen, click on Federal.
• Across the top of the screen, click on Other Tax Situations.
• At the screen Let’s keep going to wrap up.  Click on Let’s keep going.
• At the screen Let’s make sure you got the right stimulus amount, click Continue.
• At the screen Did you get a stimulus payment? you can update your stimulus check entries.

TurboTax will compare your two payment amounts to the computation within TurboTax.  The computations within TurboTax are based upon the information that has been entered into the tax software.  If you are due an additional amount, it will be issued as a Rebate Recovery Credit (RRC) on line 30 of the 2020 1040 tax return.

 

See also this TurboTax Help.

 

 

What else are you expecting?  Did you not get a Stimulus payment for yourself?