You have to access your own account and/or print it for yourself using exactly the same account and user ID that you used when you prepared the return.
Many people have multiple TT accounts and forget how to access them. Log out of the account you are in now.
Or did you use the desktop version of TurboTax? If so, the files are on your own hard drive or any backup device you used like a flash drive.
To get a copy of your previously filed returns prepared with online TurboTax https://ttlc.intuit.com/questions/1900748-how-do-i-get-a-copy-of-a-return-i-filed-in-turbotax-online
SAVE YOUR TAX RETURN !
EVERY year before mid-October you should save a copy of your tax return as a pdf and print a copy of it for your records. That way you will not be searching online frantically when you need it for a lender, FAFSA forms, your next tax return, etc.
Access a prior year online return
To access a prior year you may have to start a 2020 return in that account for the menus to open up. Just enter some basic info.
See this answer by Don with a screen shot
You are not required to prepare and file a 2020 return with TurboTax to have access to past online returns. You "might" have to simply answer a few questions first in order to have all the tabs appear, as I explain in my NOTE below.
There are a couple of possibilities for not being able to find prior returns prepared in Online TurboTax.
See this video first:
FAQ: How do I access my prior year return?
NOTE: When you log into TurboTax for the first time this year, you may not yet have the Tax Home tab and Documents tab visible in the left menu column. If they're not there, then you may have to first proceed a little further by answering some preliminary screens and may even need to choose a 2020 product to get them to appear (you are not obligated to use it.) Once you continue far enough to have those tabs, here are a couple of ways to get to the prior returns:
You can click on Documents in the left menu and then a dropdown list of years should appear. Choose the year, and then way off to the right of the screen, you should see a link to download the PDF. If that didn't work, here's another method:
Go to the Tax Home. Scroll down the Tax Home page to the section "Your Tax Returns & Documents." Expand that section and choose the tax year you want. Then you can choose to "Download/print the PDF".
If you do all that, but there's no evidence of prior returns in that section "Your Tax Returns & Documents", then you likely have multiple accounts and signed into the wrong one. Many people end up with multiple accounts.
You can have up to 5 accounts that use the same email address for notification purposes. A User ID may be an email address, but it doesn't have to be. It might be only part of an email address, or it can be anything at all.
To get a list of your User IDs, reset password, and recover account access, etc., you can use the tool at the link below. When using the Account Recovery tool, try using your phone number first if you can still access it. After that, if necessary, then run the tool on your email address(es) you can access.
NOTE: Before running the account recovery tool below, log out of all Intuit accounts including this user forum, or you might end up in a loop. Then clear your browser Internet cache, close your browser, then reopen it, and go to the link below. You may wish to copy this link so you can paste it into the new browser session.
If still no luck after running that on your phone number you can still access and email address(es) that you can access, here's another method:
Go back to the tool again, but this time leave the data field blank, scroll down a bit, then choose the small blue link that says "Try something else", and it will look you up by SSN and other parameters.
You first have to navigate around the current year's sales architecture. When you first log in for Turbotax, you see the current year's Turbotax Online homepage. It asks you to select different options about any life changes you might have experienced, because Intuit wants to push you to start doing your current tax year filing; they pretend there's no other year at that point, which is very annoying and misleading IMO.
Instead, just click Continue to skip answering questions for the current year. That will take you to a screen that will try to "upsell" you the 2021 product options to buy (so helpful except that is not what you want to do right now). Ignore the top part of the screen, and instead, scroll to the sentence at the bottom to see your tax returns. Click to expand that sentence of text, and you will see every year of Turbotax that is associated with the username you're currently logged in as. You will see any options such as printing, amending, downloading, etc.
(I highly recommend you download everything you can so that you have copies.)