I just had my personal return containing energy credit for new furnace and A/C rejected after waiting 12 weeks. The code I put on the return is a valid code from the manufacture's website. Can anyone tell us what the IRS considers a valid code to obtain the energy credit? This is a new requirement for the 2025 tax year and I suspect the IRS is ill-equipped to process it correctly.

For now, I have lost the $1,200 in tax credit and would like to know what the IRS is expecting since I have already given them the four-digit code on the return.