I added energy efficient windows to my home recently. The total cost was around 42,000. I paid 22,000 in 2019 at the start of the job and 22,000 in 2020 upon completion. I received an energy credit of 200 on my 2019 return but when I entered the 22,000 for 2020, it says my credit is 0. Why? Have I received the maximum credit over a lifetime? Can this be verified?
