Here are the minimum system requirements for TurboTax 2015 through 2018 software for Mac Basic, Deluxe, Premier, and Home & Business editions.
Processor: Multi-core Intel processor with 64-bit support
Hard Drive Space
RAM: 2 GB
CD/DVD drive if installing from the CD.
Internet connection: 56 Kbps to e-file and download updates (broadband recommended).
Monitor resolution: 1024×768 minimum
Mac-compatible printer if you want to print your tax return or any tax forms.
We no longer sell or support TurboTax for 2014 or earlier tax years.