I followed the page https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/upload-document...
It led to a screen "Welcome to TurboTax! Here’s what to expect:"..., which is different from described.
What I did was to click the Intuit Account link on the menu on the left side, which led to https://accounts-tax.intuit.com/app/account-manager/overview?aid=tt&prgn=US&rgn=US, then I clicked "Products & billing" on the menu on the left, then select TurboTax among 2 options (TurboTax or Turbo), then it led to another screen showing the list of products, such as:
TurboTax Online 2020
TurboTax Online 2019
TurboTax Online 2018
...
that I purchased in the past. In TurboTax Desktop 2021, there is no upload option, and no download button; In TurboTax Online 2020 there is a link "Tax returns and documents", clicking that link led me to a screen with a link "View documents from:" where I can select the year, and the text "Let's start uploading your 2021 documents! With MyDocs, easily upload and access your tax documents in one safe and secure place. Keep in mind that the info on your uploaded documents will not be added to your tax return." with an upload button. If I selected the year to be 2020, 2019, etc., there would be a link for downloading the tax return of that year as well. If I selected 2021, there would no link for tax return of 2021, which is reasonable as I used the desktop version of that year. I then used the upload button to upload the tax return of 2021 to MyDoc. The upload was successful, but after that there was no link to download the tax return that was uploaded. I looked around but didn't seem to find a way to access it.
