No one is preparing a 2021 tax return yet. The software for 2021 tax returns will be released sometime in November, and the IRS will begin to accept 2021 returns sometime in late January/February of 2022.
The current software is for tax year 2020 which ended on December 31, 2020. You can still e-file a 2020 return until October 15, 2021. After that your 2020 return will have to be filed by mail.