If you purchase the CD then you will have the installation file for both OS. And the .taxfile from 2020 will open on either OS system.
Before you retire the mac make sure to save both the PDF and .taxfile for each tax year so a separate medium like a thumb drive. If you did not save a PDF already then open the programs and save one now.
Save a Backup Copy of Your Tax File
To save a backup copy of your tax data file (.tax file) that can be opened and read by TurboTax CD/Download software, you'll need to choose your TurboTax product:
Similar-sounding—but very different—is saving a copy of your tax return as a PDF file, which is like a picture or "snapshot" of your tax return that you can view or print.
PDF files cannot be opened or read by TurboTax software, which means they cannot be used for amending or troubleshooting calculation issues.
Related Information:
Why should I save a PDF copy of my return?
Saving a copy of your return as a PDF (in addition to the proprietary tax data format TurboTax uses) lets you open, view, and print your return using the free Adobe Reader or Foxit Reader software.
This is a lifesaver if your tax data file gets corrupted or if you no longer have the TurboTax software to open it in. The government also accepts a paper-filed return printed from the PDF.
Please note that TurboTax PDF files cannot be "read" by the TurboTax software the way the tax data file can, which means they cannot be used for amending, troubleshooting calculation issues, or for full prior-year transfer capabilities.
For specific instructions, refer to the Related Information section, below.
Related Information:
https://ttlc.intuit.com/questions/1900937-why-should-i-save-a-pdf-copy-of-my-return
How can I protect the tax files on my computer?
Protect the sensitive information in your tax data files and tax-related PDF files with the following (the more, the merrier):
- If you're on Windows XP, upgrade to Vista or higher, as Microsoft has stopped patching XP
- Download and install the latest updates for Windows or Mac
- Keep your firewall on at all times
- Install and run virus- and spyware-protection software (and make sure to keep it updated)
- Store your files in a folder where they cannot be shared
- Password-protect your tax file
- Use PDF encryption software to protect PDF copies of your return
- Never email your tax or PDF files
Another option is to move your tax and tax-related PDF files off your computer and onto a storage device which you can then store in a secure location.
Related Information:
