You can move (copy) all your returns like the PDF files and .tax2015, .tax2016 etc. you will need the file ending in .tax2016 to transfer into next year 2017.
What I would do is just copy the whole Turbo Tax folder that is under your Documents. That should be where the .tax files and pdf files are stored. Copy that folder to a flash drive or best yet is to burn it to a CD or DVD and then you will have a backup of them. Then on the new computer copy the folder (or files) from the flash drive to your Documents folder.
Next year you have to buy the Mac version of Turbo Tax . If you buy the CD it has both Windows and Mac programs on it. But a lot of Mac computers don't have a CD drive anymore so you need to buy the program download.
