Credit available up to $150 for home energy audit on principal residence. Auditor must provide signed written report with significant cost-effective improvements. Must also include estimate of energy & cost savings.
For the first year 2023 the auditor need not be qualified.
But for the following year 2024…..
Put IRS Notice 2023-59 into Google. It defines qualified home-energy auditor. Exciting reading… good for insomnia!.