Every year, before mid-October, it is recommended that you print a copy of your current year tax return and save it as a tax file and pdf, too. That way you will have it, if needed. otherwise, you will need to follow the instructions in the link below:
How do I access a prior year return?
Can I get a copy of my tax return from the IRS?
Unlike a PDF copy, your tax data file (.tax file) can be opened, read, and edited in the TurboTax CD/Download software. We'll automatically save your 2019 online return in both .tax and PDF formats once you file your return or when TurboTax Online shuts down in mid-October, whichever comes first.
How do I save my TurboTax Online return as a tax data file?