- You have always been able to buy the Mac download. Unless you are asking about doing a separate Business return. Business returns for 1065 Partnership, 1120 S or C corp or 1041 Estate/Trust returns are only available for Windows.
You can buy the Desktop program here. Either Download both Windows an Mac or buy the CD.
**Turbo Tax Business is not available to do online or on a Mac. You can buy the Window's version here both the download and the CD. And you can have both TT Business and TT Home & Business (or any personal version) installed on your computer at the same time.