If your businesses are sole proprietorships then you can use any version of desktop download to prepare returns that require a Schedule C.
If, however, you have an S-corps, C-corps or multi-member partnership, you need TurboTax Business which works only on Windows. Some users have been able to use this on Macs with Windows emulators like Parallels.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
