Hi Thanks for using Turbotax.
If you have used TurboTax 2020 Mac Desktop product in TY20, You can copy your tax file(.tax2020 file) from Macbook to PC and use transfer prior data in the PC new return.
If you have used Online product, you can access your prior year returns after logging into your account and download the TY20 tax file.
If you could not find your TY20 tax file, you can also import the PDF file copy of your tax return if exists.
