Tax returns for 2020 cannot be filed until January 2021. The IRS will not be accepting any 2020 tax returns until late January.
The TurboTax online editions for tax year 2020 should be available in early December.
The TurboTax desktop CD/Download editions for tax year 2020 are available for purchase now on this website - https://turbotax.intuit.com/personal-taxes/cd-download/
