Last years tax for North Carolina (2017) involved forms D-400TC and NC-478 in order to enter the penultimate geothermal tax credit. 2018 is the last year for this tax credit which is $1286 (50% of $3433). How do I add these two forms to Turbo Tax premium in order to use this tax credit. Seems that there is no way to do that which leave me wondering why I even bothered to try Turbo Tax for the first time this year!