I received the IRS letter yesterday indicating that I claimed this credit incorrectly.
I went back to turbotax to determine what I did wrong and it does not show the incorrectly claimed 1400 in the "I'll choose what to work on" summary for "Decudtions & Credits" or "Wages & Income". It is clearly on the 1040 form and you can zoom to the worksheet, but I never filled out the worksheet and I still cannot find where the program asked me for this information.
Ok, after searching for 6475, I found the question under "Federal Review". I also did not receive this letter.
My situation is a bit more complicated as well. The IRS based the credit on my 2019 taxes because I had not filed my 2020 yet. In 2019, I had two dependents plus my wife. In 2021, I had one dependent plus my wife. Even my IRS account does not have the correct amount. Anyway, It comes down to paying an extra 1400 plus interest.
I updated the EIP amount received. The program is including a penalty which the IRS is not requiring. Paid online including the 2 dollars interest.
I still consider this to be a problem with the program. The amount it calculated was based on my current dependents and not what the IRS was thinking in early 2021 and since I did not get a letter, I assumed the program was entering the correct amount.
