Solar farms and the 30% tax credit under the "One
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The "One Big Beautiful Bill" (OBBB), signed into law on July 4, 2025, has significantly altered the landscape of solar tax credits.
While the 30% Residential Clean Energy Credit (Section 25D) for homeowners is set to expire at the end of 2025,
the Investment Tax Credit (ITC) for commercial and utility-scale solar projects, including solar farms (Section 48E), remains active but with new deadlines and qualifications.
Here's a breakdown of the key points regarding solar farms and the 30% credit:
Commercial Solar ITC Remains: The commercial ITC under Section 48E was not eliminated by the OBBB.
30% Credit Available for Now: Projects that begin construction by July 4, 2026 can qualify for the full 30% commercial solar tax credit.
Four-Year Safe Harbor: These projects also benefit from a four-year safe harbor, allowing for completion as late as 2030, according to GreenLancer.
New Deadline for Later Starts: Projects that start construction after July 4, 2026, must be placed in service by December 31, 2027, to be eligible for any solar tax credit.
Potential Reductions: Some sources suggest that after 2025, the continuation of the ITC for commercial solar systems may depend on whether the solar and electric sectors meet emissions reduction goals.
Additional Credits: Commercial projects may be eligible for additional credits beyond the 30% if they meet criteria such as domestic content standards or are located in designated "energy communities" or low-income areas.
In essence, while the residential solar credit faces an imminent end, the commercial solar ITC for projects like solar farms is still available at 30% but with accelerated timelines and a strong emphasis on meeting specific deadlines for beginning construction or placing the project into service.
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