There’s Still Time for Businesses to Benefit from Clean Energy Tax Breaks
The One Big Beautiful Bill Act (OBBBA), signed into law July 4, 2025, extends or enhances many tax breaks for businesses. But the legislation terminates several business-related clean energy tax incentives earlier than scheduled. For example, the Qualified Commercial Clean Vehicle Credit (Section 45W) had been scheduled to expire after 2032. Under the OBBBA, it’s available only for vehicles that were acquired on or before September 30, 2025. For other clean energy breaks, businesses can still take advantage of them if they act soon.
Deduction for energy-efficient building improvements
The Section 179D deduction allows owners of new or existing commercial buildings to immediately deduct the cost of certain energy-efficient improvements rather than depreciate them over the 39-year period that typically applies. The OBBBA terminates the Sec. 179D deduction for property beginning construction after June 30, 2026.
Besides commercial building owners, eligible taxpayers include:
- Tenants and real estate investment trusts (REITs) that make qualifying improvements, and
- Certain designers — such as architects and engineers — of government-owned buildings and buildings owned by nonprofit organizations, religious organizations, tribal organizations, and nonprofit schools or universities.
The Sec. 179D deduction is available for new construction as well as additions to or […]