MA form SC has a bug determining available credit and credit used this year for septic systems installed 2020-2022. I have $3000 credit remaining last year but for septic installed in those years MA only allows $1500 deduction per year until all the credit it used. Turbo tax continues to take the full $3000 credit this year.
I can make the correct credit this year on Form 1 by manually claiming I have only $1500 remaining credit to use but that leaves form SC incorrect and I will loose remaining $1500 of the $3000 for next year.
I also tried to change the credit work sheet manually to make the correct credit appear on MA form 1 but It also leaves form SC incorrect. Form SC is important because it seems that is how MA keeps track of used/unused septic credit.
Help....
