US Issues Interim Clean Energy Tax Rules to Curb Reliance on Chinese Supply Chains

The U.S. Treasury Department has released interim rules aimed at restricting access to federal clean energy tax credits for companies deemed overly reliant on Chinese-made equipment or influence, marking a significant step in the Trump administration’s push to reshape America’s energy supply chains.

The guidance, issued by the Internal Revenue Service, outlines how companies can comply with provisions in President Donald Trump’s “One Big Beautiful Bill Act,” passed last July. The law tightened eligibility for lucrative tax credits covering clean energy manufacturing and electricity generation, targeting what it calls “prohibited foreign entities,” including China, Russia, Iran and North Korea.

Under the new framework, companies owned or influenced by Chinese firms are barred from claiming the credits. The rules also restrict the use of components, materials or labor sourced from Chinese entities. Previously, such foreign-entity restrictions applied primarily to clean vehicle tax credits.

The interim guidance provides formulas and procedures to determine whether a project received “material assistance” from a prohibited entity. Developers may use IRS-assigned cost percentages for certain components or rely on supplier certifications to demonstrate compliance.

The clarification comes as solar, wind and battery manufacturers await certainty after months of regulatory limbo. Although U.S. clean energy manufacturing has expanded in recent years, the sector remains heavily dependent on overseas inputs, particularly from China, the world’s largest producer of solar components.

Industry reaction has been cautiously optimistic. Yogin Kothari of the Solar Energy Manufacturers for America Coalition said clearer rules should help unlock stalled projects.

Treasury said the interim rules can be relied upon until formal regulations are proposed and is inviting public comment for 45 days. The move underscores Washington’s broader effort to reduce dependence on Chinese supply chains while recalibrating federal support for clean energy development.

Clean-energy tax rules with foreign-content restrictions reshape global renewable supply chains, and they directly affect sourcing strategy for solar, wind, battery and grid-tech buyers on both sides of the tariff. Our supply-chain-and-operations and market-intelligence teams help clients evaluate what these rules mean for supply-chain strategy and disclosure.