This year the License Code gives you access to both the Windows and Mac downloads. The License Code is good for 5 installs. If you bought the CD it has both Windows and Mac on it. If you bought the download ask support how to get the other OS.
Contact Customer Service
5am-9pm Pacific Time Monday - Sunday
https://support.turbotax.intuit.com/contact/
What is the Turbo Tax phone number
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632
