The IRS instructions for Schedule D and Form 8949 are still for tax year 2019. Until the IRS finalizes the instructions for tax year 2020 TurboTax cannot provide a Schedule D or Form 8949 in the software for filing.
Go to this TurboTax website for IRS forms availability - https://care-cdn.prodsupportsite.a.intuit.com/forms-availability/turbotax_fed_online_individual.html
