Supreme Court Upends Trump Tariffs
The U.S. Supreme Court has rolled back certain tariffs, a move seen as a major win for China just weeks before President Trump's planned trip to Beijing. While the administration's new tariffs might be ruled illegal, analysts expect it to find other ways to pursue its aggressive trade agenda.
The Supreme Court's decision centered on the "major questions doctrine," which requires Congress to speak clearly when delegating issues of vast economic and political significance to the executive branch. In a 6-3 ruling, the Court found that the International Emergency Economic Powers Act (IEEPA) of 1977 did not grant the president the explicit authority to levy taxes, a power the Constitution reserves for Congress. The ruling specifically struck down the "reciprocal tariffs" and "fentanyl tariffs" imposed under IEEPA. These tariffs had significantly increased the cost of goods from numerous countries, with the reciprocal tariffs accounting for 61% of all IEEPA tariff revenue as of mid-December 2025. The fentanyl tariffs had placed duties on imports from China, Mexico, and Canada. In response to the Court's decision, the administration promptly introduced a new 10% global tariff under Section 122 of the Trade Act of 1974, which was later increased to 15%. This new tariff is temporary, with a statutory limit of 150 days, and is projected to apply to an estimated $1.2 trillion in annual imports. A wide range of products are exempt from the new Section 122 tariffs, including certain critical minerals, pharmaceuticals, some agricultural products, and goods already subject to Section 232 tariffs, such as steel and aluminum. However, the move has been met with caution by international trade partners, including Canada and the European Union, who are assessing the impact on existing trade agreements and the overall stability of trade relations. The Supreme Court's ruling has created significant uncertainty for businesses, which now face a new tariff structure and the potential for a complex refund process for the overturned tariffs. Estimates suggest that the U.S. government may owe as much as $175 billion in refunds to importers who paid the now-illegal IEEPA duties. Looking ahead, the administration is expected to utilize other legal avenues to continue its trade agenda. These include Section 232 of the Trade Expansion Act of 1962, which allows for tariffs on national security grounds, and Section 301 of the Trade Act of 1974, which addresses unfair trade practices. Both of these have been used in the past to impose significant tariffs, such as those on steel, aluminum, and a wide array of Chinese goods.
