TurboTax and the IRS save return for seven years. After seven years, they are gone.
Make electronic PDF copies, and print a paper copy for your tax folders...Every Year, just after successful filing.
Keep a second PDF copy on a Flash drive...and stored in a safe place, preferably in a bank safe deposit box.
@SteamTrain bank deposit box?
cloud storage services are more convenient and reliable.... and probably cheaper these days
...I'm still somewhat of a luddite....not sure I trust cloud storage yet.
And another UserID & Pwd to maintain Ghaaaaa!
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.
https://ttlc.intuit.com/questions/1900937-why-should-i-save-a-pdf-copy-of-my-return
NOTE: TurboTax and the IRS save return for seven years. Returns older than seven years are purged.