Hi there, @blueducku.
Yes. You can use TurboTax Online on any PC or Mac with a current web browser. You can also use the TurboTax mobile app for iOS and Android devices to do your taxes on your smartphone or tablet.
For further help, you can visit the TurboTax community: How do I install the TurboTax software for Mac?
Lastly, I've also included this reference for a compilation of articles you can use while working with us: Help Articles for QuickBooks Desktop for Mac.
If there's anything else that I can help you with, please let me know by leaving any comments below. I'll be here to lend a hand.