Opportunity Zones Opportunity Zones are an economic development tool that supports investment and growth in distressed areas of the United States. Invest in Opportunity Zones and defer tax on eligible gains. Clean vehicle credits Determine whether your purchase of an electric vehicle (EV) or fuel cell vehicle (FCV) qualifies for a tax credit under the Inflation Reduction Act of 2022. Energy efficient commercial buildings deduction Building owners who increase energy efficiency in certain building systems by at least 25% may be able to claim a tax deduction. Credit for builders of energy-efficient homes Eligible contractors who build or substantially reconstruct qualified energy-efficient homes may be able to claim tax credits up to $5,000 per home. Advanced energy project credit Manufacturers and other entities that invest in qualifying advanced energy projects may apply for a tax credit through the Department of Energy. Research credit Guidelines and audit technique guide are provided for field examiners on the examination of research credit cases. Deducting business expenses Understand the different types of business expenses, what is deductible and the general rules for deducting expenses. Abusive tax shelters and transactions The Internal Revenue Service has a comprehensive strategy in place to combat abusive tax shelters and transactions. This strategy includes guidance on abusive transactions, regulations governing tax shelters, a hotline for taxpayers to use to report abusive technical transactions, and enforcement activity against abusive tax shelter promoters and investors. Limitation on the deduction for business interest expense Answers to some basic questions about the limitation on the deduction for business interest expense, also known as the "section 163(j) limitation."