To access your current or prior year tax returns sign onto the TurboTax website with the userID you used to create the account - https://myturbotax.intuit.com/
You will not be able to e-file a 2019 tax return until the forms and schedules included with your tax return have been finalized and available for e-filing. Click on Review. The availability dates will be shown for the forms and schedules included with your tax return.
