Aaron, please read my last post on page 2 this explains what I thing is happen for 2020. In general, the federal will be automatically carry over but not the state, ad least not automatically for 2020 (I put my solar up in 2019). Beside automatic calculation in Turbotax or by hand using form SC SCH.TC-38, this year I wasn't able to attach form SC1040TC to my return for efiling. Turbotax told me I have to send my state return by mail.
