topic You need at least OS 10.12 for 2018 desktop. https://ttlc... in After you file https://ttlc.intuit.com/community/after-you-file/discussion/you-need-at-least-os-10-12-for-2018-desktop-https-ttlc/01/340318#M67199 <P>You need at least OS 10.12 for 2018 desktop.</P><P> <A href="https://ttlc.intuit.com/questions/1899173-minimum-system-requirements-for-turbotax-mac-software" target="_blank">https://ttlc.intuit.com/questions/1899173-minimum-system-requirements-for-turbotax-mac-software</A> <BR /> </P> Mon, 03 Jun 2019 20:04:09 GMT SweetieJean 2019-06-03T20:04:09Z Had to go back an OS on my mac, now can't open TurboTax2018. How can I upload what I already have done in my .tax2018 file and finish my taxes? https://ttlc.intuit.com/community/after-you-file/discussion/had-to-go-back-an-os-on-my-mac-now-can-t-open-turbotax2018-how-can-i-upload-what-i-already-have-done/01/340301#M67193 Mon, 03 Jun 2019 20:04:08 GMT https://ttlc.intuit.com/community/after-you-file/discussion/had-to-go-back-an-os-on-my-mac-now-can-t-open-turbotax2018-how-can-i-upload-what-i-already-have-done/01/340301#M67193 colowests 2019-06-03T20:04:08Z You need at least OS 10.12 for 2018 desktop. https://ttlc... https://ttlc.intuit.com/community/after-you-file/discussion/you-need-at-least-os-10-12-for-2018-desktop-https-ttlc/01/340318#M67199 <P>You need at least OS 10.12 for 2018 desktop.</P><P> <A href="https://ttlc.intuit.com/questions/1899173-minimum-system-requirements-for-turbotax-mac-software" target="_blank">https://ttlc.intuit.com/questions/1899173-minimum-system-requirements-for-turbotax-mac-software</A> <BR /> </P> Mon, 03 Jun 2019 20:04:09 GMT https://ttlc.intuit.com/community/after-you-file/discussion/you-need-at-least-os-10-12-for-2018-desktop-https-ttlc/01/340318#M67199 SweetieJean 2019-06-03T20:04:09Z