Which Form 8915 are you referring to? There are 5 - 8915 A, B, C, D and E.
The stimulus payments are not associated with a Form 8915. The Recovery Rebate Credit is based on your 2020 federal tax return for filing status, dependent and the 2020 AGI.
Did you answer the questions concerning stimulus payments in the Federal Review section of the program?
A dependent born in 2020 is eligible for the stimulus payments EIP1 and EIP2 on the federal tax return.
However, you must have entered the information for the dependent correctly for them to be eligible for the credit.
Verify your entries for the dependent in the My Info section of the program. Did you enter that the child lived with you for the Whole Year, did you enter that the child did NOT provide over one-half of their own support, did you NOT check the box for the Social Security number is not valid for employment.
The IRS will use either the 2019 or 2020 tax return for the third stimulus payment. If they use the 2019 return and then later process the 2020 tax return which includes the child as your dependent they will send the third stimulus later in the year. Or you can claim the third stimulus for the child on the 2021 tax return to be filed next year.
