See this TurboTax support FAQ for accessing prior year online tax returns - https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-access-my-prior-year-return/01/270...
the article linked says nothing about how to register.
@dkegler929 wrote:
the article linked says nothing about how to register.
Look like someone at TurboTax changed the FAQ. Let me get back to you.
@dkegler929 Found a message from yesterday when the FAQ had the following steps to register the 2019 account so that the prior year returns can be accessed.