Don’t miss out on the expanding energy-efficient home improvement credit of $150 towards an audit of your principal residence. The audit has to be done by a qualified home-energy auditor or someone supervised by such a person. Note that for 2023, the auditor doesn’t have to be “qualified” but must provide a signed, written report listing significant and cost-effective energy-efficient improvements for your home, including an estimate of the energy and cost savings of each recommendation.