A U.S. federal court has blocked the implementation of Trump’s April 2 tariff policy—what does this mean? Do other tariffs imposed by the U.S. on other countries remain in effect?

On May 29, the U.S. Court of International Trade ruled that Trump lacked the authority to impose tariffs on nearly all countries using the 1977 International Emergency Economic Powers Act (IEEPA). Both the so-called 'fentanyl' tariffs imposed in February and the 'reciprocal' tariffs imposed on April 2 cited the IEEPA. Therefore, this ruling by the U.S. Court of International Trade not only permanently blocks Trump’s April 2 'reciprocal' tariffs but also invalidates the so-called comprehensive 'fentanyl' tariffs. Specifically, the 10% baseline tariff Trump imposed on our side effective April 2—and the 25% 'fentanyl' tariffs imposed on our side in February and March—are now permanently prohibited under this ruling. The IEEPA had never been used for tariff imposition prior to Trump’s administration. The law grants the president broad economic powers during a declared national emergency. Yet the Court of International Trade wrote in its ruling: 'Because the Constitution explicitly vests the power to impose tariffs in Congress… we hold that the IEEPA does not confer unlimited tariff authority upon the President.' This ruling stems from two lawsuits—one filed by five small U.S. businesses and another by twelve U.S. states. Interestingly, plaintiffs originally sought only a 'temporary injunction.' Instead, the court issued a permanent injunction—far exceeding market expectations. You may still have questions—for example: Which of Trump’s tariffs remain in place? Will Trump comply with this ruling? What happens next? This article analyzes each of these questions in turn. If categorized by the statutory authority cited, Trump’s tariffs fall roughly into three groups: (1) Section 301 tariffs; These were first imposed by Trump during his initial term in 2018, pursuant to Section 301 of the Trade Act of 1974—hence their name. They remain in effect today. Trump’s original Section 301 tariffs averaged an 18% rate, but beginning in 2020—including throughout the Biden administration amid runaway inflation—certain inflation-sensitive product categories were granted partial exemptions. Section 301 tariffs are subject to review every four years; they were originally set to expire in 2022, but the Biden administration extended the review period in 2022. In May 2024, the Biden administration completed its Section 301 review—not only maintaining existing tariffs but upgrading them, raising rates on select categories. For instance, it imposed a 100% tariff on our electric vehicles and a 50% tariff on our semiconductors. Thus, calculating the current average Section 301 tariff rate is difficult—the rates vary enormously across product categories. (2) Section 232 tariffs; These were imposed by Trump this year under Section 232 of the Trade Expansion Act of 1962. They include: a 25% tariff on all imported steel and aluminum, effective February 10; a 25% tariff on imported automobiles, announced on April 2; and a 25% tariff on critical auto parts, which officially took effect on May 3. These measures apply to all countries. (3) Emergency-power tariffs; These are the tariffs invalidated by the U.S. Court of International Trade’s ruling—namely, the 'fentanyl' tariffs imposed in February and the 'reciprocal' tariffs imposed on April 2—both grounded in the 1977 IEEPA.

The U.S. Supreme Court has ruled that Trump’s large-scale tariff policy violates the law—what impact will this have? Will the tariff policy be rescinded?

Category One: Tariffs Immediately Nullified and Ceased (Direct Rate Reduction) Only those tariffs imposed by Trump under the International Emergency Economic Powers Act (IEEPA)—colloquially dubbed his 'universal tariff tool'—have been sentenced to immediate death. In essence, these are the 'blanket global tariffs' he unilaterally imposed after taking office in 2025, invoking a 'national emergency' to bypass Congress. Core components include: - A 10% baseline 'reciprocal tariff' on virtually all imported goods worldwide (also known as the so-called 'Liberation Day Tariff'); - Targeted punitive tariffs on neighboring countries like Canada and Mexico, justified by claims about fentanyl trafficking and border security. This group of tariffs totals over $175 billion. Upon the ruling’s entry into force, they legally lost all validity—and the applicable tariff rates dropped to zero. Analysts estimate this move will slash the U.S. weighted-average tariff rate from its current 13.6% down to approximately 7%, representing a more than 40% reduction in overall tariff levels! Category Two: Tariffs Entirely Unaffected—No Reduction at All 1. Section 301 tariffs targeting China: Imposed under the Trade Act of 1974, citing 'unfair trade practices' such as intellectual property theft and forced technology transfer—these tariffs remain completely untouched and rock-solid. 2. Section 232 'national security' tariffs: Imposed under the Trade Expansion Act of 1962, citing national security concerns, on specific products—including steel, aluminum, auto parts, and copper—from all countries—likewise remain wholly unaffected. II. When Will This Take Effect? Can the Hundreds of Billions Already Collected Be Refunded? Exporters, importers, and others in international trade care most about implementation timing—here’s the clear timeline: 1. Cessation of Collection: Effective within days to weeks at most The Supreme Court’s final judgment has entered into force, leaving no avenue for appeal. The ruling will now be transmitted to the U.S. Court of International Trade, which will formally issue a mandatory injunction to U.S. Customs and Border Protection. Once issued, Customs must immediately stop collecting these IEEPA-based tariffs at ports—there will be little or no grace period. 2. Refund Process: Likely to commence by mid-2026 The ruling explicitly directs the U.S. Court of International Trade to oversee Customs in launching a formal refund process. That means U.S. importers and trading firms who paid tens—or even hundreds—of billions of dollars in these unlawful tariffs will be eligible to file for refunds. Current market forecasts indicate a 66% probability that the court will formally order a comprehensive refund program by July 2026—making it highly likely these funds will indeed be recovered. III. This Hammer Blow Is Far More Impactful Than You Might Think—Who Exactly Got Hit? This ruling is far more than just 'collecting less tax.' Its implications for U.S. politics and global trade are truly historic. 1. Trump suffers his most devastating judicial setback to date—and his core weapon is confiscated Tariffs constitute the cornerstone of Trump’s economic and foreign policy—and the IEEPA was his most convenient 'universal tariff key': no congressional approval required, no cumbersome investigation needed—just declare a 'national emergency,' and freely impose tariffs on any country, on any product. Now the Supreme Court has delivered a definitive verdict: presidents cannot use this statute to circumvent Congress and impose blanket global tariffs. It effectively disarms Trump’s fastest, most potent weapon—and simultaneously establishes an ironclad precedent: future U.S. presidents may no longer abuse unilateral tariff authority under the guise of 'emergency.'

US Trade Court Rules Trump Tariffs Illegal, Issues Narrow Block

May 7, 2026

The U.S. Court of International Trade ruled against President Trump's 10% global tariffs, finding them unjustified under the Trade Act of 1974, though only blocking them for specific plaintiffs including a spice importer. Duties remain for others during appeals.

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