And system requirements change almost every year especially with a MAC and their planned obsolescence program ... WIN 7 was around for years longer than originally planned ... for the 2020 program you will need 10.14 or better for MAC and Win 10 for Windows ... sorry but the OS are set by the manufacture not TT.
If you use the Online program there are separate fees for the fed & state programs and each person needs their own account so every return is charged for both.
At least with the downloaded version you only pay one fee for both programs and can complete as many returns as you like and efile up to 5 federal per license …. however there is the extra fee for the state ... the extra fee to efile the state return (which is $19.99 until March when it increases to $24.99) has always been the way it is when using the downloaded version however you can print & mail the state returns for free instead (some states let you efile on their web site for free).
Here are the system requirements to install Turbo Tax for Windows…..
https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-...
Here are the system requirements to install Turbo Tax for MAC…..
https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-...
Online version system requirements
https://ttlc.intuit.com/community/system-requirements/help/turbotax-online-system-requirements/00/25...
