If you are sure that you did not use TurboTax for tax year 2020 and are seeing on the online account that there is taxes owed for 2020, contact TurboTax support for this issue.
See this TurboTax support FAQ for contacting support - https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632
Support can also be reached by messaging them on these pages https://www.facebook.com/turbotax/ and https://twitter.com/TeamTurboTax
For tax year 2020 and 2021 you will need to purchase and download each tax year from this TurboTax website to install on a personal computer, either Windows or Mac - https://turbotax.intuit.com/personal-taxes/past-years-products/
Prior year tax returns can only be printed and mailed using TurboTax, they cannot be e-filed. Each tax year needs to be mailed in separate envelopes. State tax returns are mailed separately from federal returns. It is recommended that you use a tracking service from the US Post Office so that you will have proof the IRS and/or state received your tax returns.
