When using the TurboTax online editions your tax data is stored online under the User ID and Password you used to create the online account for 2018. You have access to all your online tax returns up through October 2019 if you used the Free online editions. If you used and paid for one of the online editions of either Plus, Deluxe, Premier or Self-Employed then you have access to all your online returns through October 2020.
If your access to the online editions expires, your tax returns are still stored online if created with the online editions.
