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The Investment Tax Credit (ITC) is a federal tax credit under IRC Section 48 that reduces your federal income tax liability dollar-for-dollar based on a percentage of eligible clean energy project costs. Under the Inflation Reduction Act, the base ITC rate is 30% for qualifying solar, wind, battery storage, EV charging infrastructure, and other clean energy systems placed in service through 2032.

The 30% rate requires meeting Prevailing Wage and Apprenticeship (PWA) requirements for projects over 1 MW. Smaller projects (under 1 MW) automatically qualify at the full 30% without PWA compliance. Projects can earn additional bonus adders of up to +10% for energy community siting and +10% for domestic content, potentially bringing the total ITC rate to up to 50%.

For tax-exempt organizations and municipalities, the IRA introduced Direct Pay (elective pay) provisions allowing non-profit and government entities to receive ITC-equivalent refundable payments directly from the IRS. See IRS elective pay guidance for details.

Section 179D of the Internal Revenue Code provides a first-year tax deduction for commercial building owners who install qualifying energy-efficient improvements including HVAC systems, building envelope (insulation, windows, roof), and lighting. The IRA significantly expanded 179D beginning in 2023.

The deduction ranges from $0.50 to $1.88 per square foot at the basic tier (not meeting PWA requirements) and up to $5.00 per square foot for projects that meet Prevailing Wage and Apprenticeship requirements. To qualify for the full deduction, the improvements must reduce the building's total energy and power cost by at least 25% compared to ASHRAE Standard 90.1-2007 (or 50% for the full deduction under older rules).

For government-owned buildings (schools, courthouses, libraries, etc.), the deduction can be allocated to the designer of the qualifying systems — typically an engineering or architecture firm. This is a unique feature that makes 179D valuable for design-build firms working on public projects.

⚠️ Deadline Alert: Section 179D sunsets on June 30, 2026 under OBBBA Public Law 119-21. Construction must begin by that date to qualify. See the 179D deadline guide →

Yes — one of the landmark changes in the Inflation Reduction Act was the introduction of Direct Pay (elective pay) provisions, which allow tax-exempt organizations and government entities to effectively claim ITC-equivalent benefits as a direct cash payment from the IRS, even though they have no federal income tax liability to offset.

Eligible entities include: 501(c)(3) non-profits, state and local governments, tribal governments, rural electric cooperatives, and certain other tax-exempt organizations. To claim direct pay, entities must register with the IRS through the IRS Energy Credits Online portal and file Form 3800 along with their tax return (or information return). The registration deadline is generally prior to the tax year in which the credit is earned.

Note that Section 179D is not available to non-profit organizations unless they own a government building and can allocate the deduction to the building designer. Prevailing wage compliance is also required for direct pay claims on larger projects.

MACRS (Modified Accelerated Cost Recovery System) is the IRS depreciation method for business assets. Most commercial energy equipment qualifies for 5-year MACRS depreciation, meaning the full asset cost can be deducted over just 5 years rather than the 15-30 years used for standard building components. This accelerated deduction schedule generates significant early-year tax savings.

For solar PV, wind, battery storage, and EV charging equipment, the eligible 5-year MACRS depreciation basis is reduced by 50% of the ITC claimed (per IRS rules). For example, if you claim a 30% ITC on a $1 million solar project, the depreciable basis is $1M × (1 − 0.30/2) = $850,000. Depreciated over 5 years using the double-declining balance method, this generates roughly $700,000–$850,000 in total deductions.

The tax benefit of MACRS depends on your effective corporate tax rate: C-corporations benefit at the 21% federal rate, while pass-through entities (S-corps, partnerships, LLCs) benefit at their owners' individual rates, often 30–37%. Bonus depreciation (100% first-year) was phased down and may not apply for projects placed in service after 2026 without new legislation.

Yes — the IRA contains no per-taxpayer cap on total ITC or other clean energy credits. Multi-location businesses and real estate portfolios can claim credits on every eligible project, making the economics particularly compelling for large commercial real estate owners, retail chains, hotel groups, hospital systems, and industrial manufacturers.

For large portfolios, key structural considerations include: (1) Tax appetite — ensure the owning entity has sufficient tax liability to absorb the credits, or consider transferability provisions that allow selling credits to third-party buyers; (2) Transferability — the IRA introduced the ability to sell or transfer clean energy credits to unrelated parties, allowing owners without sufficient tax capacity to monetize credits at roughly 90–96 cents on the dollar; (3) Aggregation rules — related entities must evaluate whether projects should be filed under separate entities to maximize depreciation elections.

Portfolio-scale projects also have greater opportunity to qualify for prevailing wage bonuses (which require structured labor contracts but deliver the full 30% ITC vs. a lower rate) and to pursue domestic content bonus adders through coordinated procurement. Contact our team for portfolio-scale analysis.