ThinkTankWeekly

The Supreme Court’s IEEPA Tariff Ruling and What Comes Next

CSIS | 2026-02-26 | society

Topics: China, Europe, Trade, United States

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English Summary

The U.S. Supreme Court ruled that the International Emergency Economic Powers Act (IEEPA) does not authorize the President to impose tariffs, asserting that taxation power is reserved exclusively for Congress. While the ruling creates a significant legal hurdle for executive trade authority, the administration is already seeking to reimpose tariffs through alternative statutes like Section 122 and Section 232. The decision triggers a massive $170 billion refund process for businesses and potentially weakens the U.S. negotiating position by undermining previous trade concessions forced by the now-invalidated IEEPA tariffs.

中文摘要

美國最高法院裁定,《國際緊急經濟權力法》(IEEPA)並未授權總統徵收關稅,並主張課稅權專屬於國會。儘管這項裁決為行政機關的貿易權限製造了重大的法律障礙,但政府已正尋求透過《122 條款》和《232 條款》等其他法令重新徵收關稅。此項決定引發了針對企業的高達 1,700 億美元的巨額退稅程序,並可能因削弱先前由現已失效的 IEEPA 關稅所迫使達成的貿易讓步,進而損害美國的談判地位。

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