@nphodges
ADDENDUM:
Also be aware that while it is technically possible to efile now, the IRS has not yet opened up to start processing 2020 returns. They will open for processing on February 12, 2021. If you efile before then, your return will sit on TurboTax servers in "pending" status until the IRS starts pulling returns on February 12. The IRS pulls a very small number of returns early for testing purposes, but for most people it will be February 12 or soon after.
A common error some people get when efiling this early is that one or more forms may not yet available for efiling. When you go through the REVIEW tab, it should tell you if any of your forms are not yet available. Here are tables that show availability dates for various forms in the Federal and state returns.
TurboTax IRS Federal Forms Availability Table:
https://ttlc.intuit.com/community/forms/help/irs-forms-availability-table-for-turbotax-individual-pe...
State Forms Availability Table:
https://ttlc.intuit.com/community/forms/help/state-forms-availability-table-for-turbotax-individual-...
