TurboTax is the easiest to use tax return software, helps you in preparing simple returns, keep checking errors, and also e-file the return. TurboTax provides you step-by-step instructions to calculate and file your taxes. But there might be some problems because of which different versions of TurboTax do not work on Mac or Windows 10. Consult the experts on why TurboTax not working on Mac or on windows 10 for immediate assistance and quick help.