As mentioned earlier, a dummy code may be sufficient to make the subprogram in TurboTax work. For the three (3) skylights that were $2500 each, plugging in the three line items and the dummy code (e.g., A1B2), generated a tax benefit of $600. On this matter, I will accept anything, as Velux won't help. And the figure will most likely not generate any audit (My refund is very low at this stage). The $600 figure may be the limit for this energy efficiency domain. Good luck!
