What version of Mac OS will be required for TurboTax software for 2017?

[etpatronisjr]

What Mac OS will be required for Premier TurboTax 2017?

[Opus 17]

For the desktop installed version, 10.11 or higher.

[Critter]

2017 has not been officially posted yet ... but  on the 2016 system requirement page they say .... Note that after the 2016 tax year, Mac OS X v10.9 and v10.10 will no longer be supported.

https://ttlc.intuit.com/replies/3299949

[SweetieJean]

However, you can still use TT Online (web).