please note that any prior years' returns that were not also stored offline are now permanently gone. Turbotax does not have copies of returns prepared using desktop software, if you need a copy of your prior years' returns, the only source is the IRS for which there is a fee. a transcript can be requested for free
https://www.irs.gov/pub/irs-pdf/f4506.pdf copy
https://www.irs.gov/pub/irs-pdf/f4506t.pdf transcript
you can also go to IRS website and sign up to download a transcript (may be limited if the file is too large)
or request a copy through the mail without having to file form 4506-T
https://www.irs.gov/individuals/get-transcript
