To access your prior year returns,
you will need to sign in with the same TurboTax account that you used
previously. Please note, there can be multiple TurboTax accounts associated
with a single email address.
Here are the
steps to locate your prior year’s returns.
https://ttlc.intuit.com/replies/3301525
If you need to recover your previous TurboTax
account, please follow the instructions below.
https://ttlc.intuit.com/replies/3302318
You can also
request your transcripts from the IRS through this link.
https://www.irs.gov/individuals/get-transcript