Note - The 2nd stimulus payment has not yet been included in the calculations for the Recovery Rebate Credit due to the IRS not yet finalizing the calculations on the Form 1040. The Form 1040 is scheduled to be updated sometime today, 01/07/2021. Although this is subject to change.
When updated, the program will have two boxes, to enter the first and second payments separately. We expect an update sometime today but we have no control over that. You don’t need to be in a hurry to file your tax return. The IRS will open e-filing no earlier than January 27. Although TurboTax may open e-filing earlier than that, early returns will only go into cold storage.