I believe if your son use the cd to install it on a pc it would work. My son did. I read somewhere if you use the cd on a pc then it would not work on a Mac or Vice versa. I believe TurboTax has not worked out a more seamless implementation with their third parties even after all these years. In their greed they want their customers to buy TurboTax twice each for a separate operating systems. Pc/Mac means pc or Mac mutually exclusive, I think. Almost worth buying a new pc than to talk to TurboTax so called support. Sigh!
