Federal Court Blocks IRS Renewable Energy Tax Credit Restrictions
A federal judge has struck down IRS guidance that narrowed access to federal tax credits for wind and solar projects, handing renewable-energy developers a significant legal victory ahead of a critical July deadline.
Judge Colleen Kollar-Kotelly of the U.S. District Court for the District of Columbia vacated IRS Notice 2025-42, which eliminated the long-standing “5% Safe Harbor” method used by many developers to show that construction had begun on projects seeking clean-energy tax incentives. The court concluded the IRS failed to adequately justify the policy change and did not sufficiently address industry reliance on the prior framework.
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The ruling restores that safe harbor pathway unless overturned on appeal.
Renewable-energy advocates and environmental groups publicly welcomed the decision, arguing the IRS rule threatened projects already in development. Industry analysts say the immediate practical impact may be limited because developers are already racing toward a July 4 compliance deadline, but the ruling removes a major regulatory hurdle for qualifying projects.
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