The IRS has not yet finalized the Recovery Rebate Credit worksheet for the 2nd stimulus. TurboTax cannot include the 2nd stimulus question on the Recovery Rebate Credit page until the IRS finalized the Form 1040.
The IRS Form 1040 is currently estimated to be available on 01/07/2021 (subject to change)
Go to this TurboTax website for IRS forms availability - https://care-cdn.prodsupportsite.a.intuit.com/forms-availability/turbotax_fed_online_individual.html
