How do i find tax returns before 2017?

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/

Scroll down to the bottom of the screen and on the section Your tax returns & documents click on Show.  Click on the Year and Click on Download/print return (PDF)

You have to sign onto your 2018 online account using the exact same user ID you used to create the account.

Close all TurboTax windows on your web browser (including this one).  Copy and paste the account recovery website link onto a new web browser window and run the tool.

Use this TurboTax account recovery website to get a list of all the user ID's for an email address.  Run the tool against any email addresses you may have used - https://myturbotax.intuit.com/account-recovery

If none of the user ID's received will access your 2018 account, then use the option shown in blue on the account recovery website, "Try something else"

If you have not filed the 2018 tax return using the online edition and have not paid for the 2018 online edition or if the Free edition was used and it was not registered, then the 2018 tax return will not be available as a PDF to download.