When you start TurboTax 2020 it assumes that you did not receive any stimulus payments. It gives you the stimulus payments as a tax credit for 2020. That will result in a refund or in a decrease in the amount owed.
When you get to the screen where you report the stimulus payments that your received, then those amounts are deducted from the credit you had and your refund will go down or your amount owed will increase.
The results that you are seeing indicate that TurboTax s TurboTax is not agreeing that the second payment should be $2400. Was your AGI higher than $75,000 for filing single or $150,000 for married filing jointly?
