The Inflation Reduction Act, signed into law on August 16, 2022, represents one of the most significant expansions of energy-related tax incentives in recent history. With approximately $369 billion committed to clean energy investment over the next decade, the legislation has fundamentally reshaped the landscape of energy tax credits available to businesses. The IRS's recent issuance of Notice 2023-17 provides critical guidance on the mechanics of these expanded credits, clarifying rules that will affect capital investment decisions across manufacturing, real estate, utilities, and other sectors. Business owners considering solar installations, energy efficiency upgrades, electric vehicle fleets, or other eligible property should understand how these credits operate and what compliance requirements apply.
Overview of the Inflation Reduction Act Energy Provisions
The Inflation Reduction Act modifies and dramatically expands two primary energy tax credits that have existed in the Internal Revenue Code: the investment tax credit under § 48 and the production tax credit under § 45. Rather than simply increasing percentages or caps, the legislation restructures these credits to incentivize domestic manufacturing, domestic content in equipment, and adherence to labor standards. The changes apply to property placed in service beginning in 2023, creating an immediate planning horizon for businesses that are already evaluating energy investments.[1]
The Act's architects intended these credits to achieve dual objectives: reducing the cost of transitioning to clean energy while simultaneously supporting domestic manufacturing and job creation. This combination of goals has produced complex eligibility requirements and bonus provisions that require careful attention. Businesses that fail to evaluate their projects against the new rules may leave substantial tax benefits unclaimed, or alternatively, may claim credits that the IRS later disputes on examination. Our firm has focused its business tax planning practice on precisely these kinds of provisions, where statutory language and legislative intent align to create significant opportunities for informed taxpayers.
The Investment Tax Credit: Structure and Key Provisions
Base Credit and Property Types
The investment tax credit under § 48 allows a taxpayer to claim a credit equal to a percentage of the basis of certain energy property. The IRA increased the base rate for many property categories and extended the credit to new types of property previously ineligible. For solar energy property, energy storage property, micro-turbines, and fuel cells, the base credit rate is now thirty percent, up from previous levels. For combined heat and power property, the rate remains at ten percent.
The critical distinction under the IRA is between property that uses only domestically manufactured content and property that does not. A taxpayer placing property in service in 2024 and beyond may claim an additional bonus credit of ten percentage points if the property's steel or iron components are manufactured in the United States and if specified domestic content requirements for other materials are met. Notice 2023-17 provides detailed guidance on how the IRS will measure compliance with these domestic content rules, including methodology for calculating the percentage of domestic content in materials like solar modules and inverters.[2]
Prevailing Wage and Apprenticeship Bonus Credit
Perhaps the most stringent new requirement under the IRA applies to taxpayers seeking an additional ten percentage point bonus credit for prevailing wage and apprenticeship compliance. To claim this bonus, a taxpayer must pay workers on the project wages that meet or exceed the prevailing wage rate determined by the Department of Labor for the relevant trade and geographic area. Additionally, the project must include an apprenticeship requirement under which a specified percentage of total labor hours are performed by registered apprentices.
This requirement has significant implications for capital projects. A business considering a solar installation or efficiency upgrade on its facility must either engage contractors who maintain apprenticeship programs or self-perform the work with its own apprentices. The prevailing wage requirement typically increases labor costs substantially, as prevailing wage rates significantly exceed average market rates in many jurisdictions. A business must thus make an affirmative decision: claim the full credit percentage by meeting the wage and apprenticeship requirements, or forgo the bonus and claim only the base or domestic content bonus. Notice 2023-17 confirms that the IRS expects taxpayers to document prevailing wage compliance through Department of Labor certification and prevailing wage audits.
The Production Tax Credit: Enhanced Rates and Qualification
Credit Rates and Qualified Property
The production tax credit under § 45 applies to electricity produced by certain renewable and clean energy facilities. The IRA substantially increased credit rates for wind, solar, geothermal, and other qualifying technologies. For wind facilities placed in service in 2023 and 2024, the base production tax credit is now $0.0185 per kilowatt-hour of electricity produced, with inflation adjustments for 2024 and beyond. Solar facilities enjoy a base rate of $0.03 per kilowatt-hour, also adjusted annually for inflation.[3]
Like the investment tax credit, the production tax credit offers significant bonuses for domestic content and prevailing wage compliance. A facility meeting the domestic content requirement receives an additional bonus of $0.005 per kilowatt-hour. A facility meeting the prevailing wage and apprenticeship requirement receives an additional bonus of the same magnitude. A facility that meets both requirements may stack these bonuses, effectively increasing the per-kilowatt-hour benefit to $0.04 for solar under current law.
The production tax credit differs from the investment tax credit in a critical respect: it is claimed annually against the electricity produced over a ten-year credit period following the year the facility is placed in service. A business must track production carefully and claim the credit on its annual tax return. This requires accurate metering and documentation of kilowatt-hours produced, which may necessitate upgrades to monitoring and reporting systems.
Electric Vehicle Credits and Alternative Fuel Refueling Property
Beyond traditional energy generation property, the IRA expands credits for electric vehicles and alternative fuel refueling property. The new § 30D credit for electric vehicles is now available directly at the point of sale, in limited circumstances, rather than solely as a tax credit claimed after purchase. A business that acquires an electric vehicle manufactured in North America for commercial use may be eligible for a credit of up to $7,500, subject to price limitations and domestic content requirements that take effect in 2024.
The alternative fuel refueling property credit under § 30C is also enhanced. A business that installs qualified EV charging stations or other refueling infrastructure may claim a credit of thirty percent of the cost, up to $30,000 per property or $100,000 if the station is placed at a location serving the public. The domestic content and prevailing wage bonuses available under § 48 do not apply to refueling property, but the enhanced base rate and extended availability make this credit more accessible than in prior law.[4]
Practical Application and Planning Considerations
For a business considering energy investments, compliance with the prevailing wage requirement represents the largest unknown variable in return-on-investment calculations. A manufacturer considering a large solar installation, or a distributed utility evaluating wind facilities, must determine whether the incremental credit available from prevailing wage compliance justifies the incremental labor costs. In some projects, the answer is clear: the bonus credit fully offsets the additional wages. In others, a business may rationally elect to claim only the base and domestic content credits, accepting lower overall tax benefits in exchange for more efficient project execution.
Timing also matters. The IRA phases in certain domestic content requirements over time, with full implementation in 2025 and 2026 for most categories. A business placing property in service in 2023 and 2024 may avoid the strictest domestic content requirements entirely. Similarly, certain provisions expire or step down at future dates. The investment tax credit for solar, for example, begins to phase down in 2033 unless Congress acts to extend it. A business should consider whether accelerating an otherwise discretionary project into 2023 or 2024 provides sufficient tax benefit to justify the acceleration.
We recommend that any business evaluating a significant capital project involving energy property consult with a tax advisor familiar with energy tax policy before finalizing engineering specifications or requesting contractor bids. The difference between claiming the base credit and claiming the full credit with bonuses may be millions of dollars over the life of the facility. Notice 2023-17 provides a foundation for analyzing these questions, but its application to specific facts requires careful analysis and often specialized valuation and engineering work.
Looking Ahead
The IRA energy provisions represent a long-term policy commitment to clean energy investment. Rather than temporary tax breaks that expire and require Congressional renewal, the new credits are structured with multi-year durability and clear phase-down schedules. This stability creates genuine planning opportunities for businesses with longer investment horizons. A company that understands the mechanics of the investment and production tax credits can structure its energy capital plan to maximize tax benefits while achieving its operational and sustainability objectives. The initial complexity of Notice 2023-17 should not discourage businesses from pursuing these credits; rather, it underscores the importance of early and thorough planning before capital is deployed.