See the TurboTax webpage linked below. Once you've selected the program you wish to use (Deluxe, Premier, etc.), you'll see the option to choose between the Windows and Macintosh download. It should be self-explanatory when proceeding from there.
https://turbotax.intuit.com/personal-taxes/past-years-products/
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*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
