The United States Supreme Court has delivered a significant ruling limiting the scope of President Donald Trump’s authority to impose broad tariffs on imported goods. In a 6-3 decision, the Court held that Trump exceeded his presidential powers when he imposed sweeping global tariffs last year using the International Emergency Economic Powers Act (IEEPA) of 1977. This ruling marks a pivotal moment in the ongoing debate over executive power and trade policy, raising important questions about the future of US tariffs, potential refunds to businesses and consumers, and the administration’s next steps.
### Background: The Tariffs and the Legal Basis
In February 2025, President Trump first utilized the IEEPA to impose tariffs on imports from China, Mexico, and Canada. He justified this move by citing fentanyl trafficking from these countries as constituting a national emergency. A few months later, in what he called “Liberation Day,” Trump dramatically expanded these tariffs, imposing levies ranging from 10% to 50% on goods from nearly every country worldwide. The rationale shifted to addressing the US trade deficit, which Trump characterized as an “extraordinary and unusual threat.”
The IEEPA grants the president the authority to regulate international trade and financial transactions in response to national emergencies. However, the Supreme Court ruled that this statute does not permit the president to impose new taxes, which is a power reserved for Congress. The Court emphasized that tariffs intended to raise revenue fall under the domain of Congressional authority, and therefore, Trump’s sweeping use of the IEEPA to impose global tariffs was beyond his legal powers.
### Implications of the Supreme Court Decision
The ruling specifically targets tariffs imposed under the IEEPA. It does not affect other tariffs Trump has imposed under different laws, including industry-specific levies on steel, aluminum, lumber, and automobiles. These tariffs were enacted under Section 232 of the Trade Expansion Act of 1962, which allows tariffs to be imposed for national security reasons following a formal investigation.
While the Supreme Court’s decision invalidates the IEEPA-based tariffs, it leaves open several critical questions. One major unresolved issue concerns the estimated $130 billion in revenue that the US government has collected from these tariffs. The Court’s ruling did not address whether consumers and businesses who paid these tariffs are entitled to refunds. Experts and officials have indicated that this issue is likely to lead to protracted litigation, potentially lasting years.
Treasury Secretary Scott Bessent, speaking shortly after the ruling, acknowledged that the question of refunds remains “in dispute” and will likely be settled in the US international trade court. Industry experts believe that larger companies are more likely to pursue refunds, as smaller businesses may lack the resources or incentive to engage in the complex legal process. Already, over 1,000 companies had filed requests for tariff refunds prior to the ruling, and this number is expected to grow.
### Trump’s Response: New Tariffs Under Alternative Authority
In the immediate aftermath of the Supreme Court decision, President Trump acted swiftly to maintain tariffs on imports. On the same day the ruling was issued, he signed a proclamation invoking an alternative legal authority, Section 122 of the Trade Act of 1974. This rarely used statute empowers the president to impose temporary tariffs of up to 15% on imports to address fundamental problems in international payments and trade imbalances.
Initially, Trump imposed a 10% tariff on imports from nearly every country starting February 24, 2026. However, within 24 hours, he announced via social media that he planned to increase the tariff rate to 15%. Section 122 allows such tariffs to remain in place for 150 days, after which Congress must act to either extend or terminate them. Some analysts suggest that Trump might attempt to circumvent Congressional oversight by letting tariffs expire and then declaring new emergencies to reinstate them.
In addition to Section 122, the administration is exploring tariffs under Section 301 of the Trade Act of 1974. This law authorizes the US Trade Representative (USTR) to investigate unfair or discriminatory trade practices by other countries and impose tariffs in response. The current USTR, Jamieson Greer, plays a key role in this process. Tariffs under Section 301 require investigations, which take time, but once imposed, they are often more legally defensible and difficult to challenge.
Treasury Secretary Bessent has indicated that by combining tariffs under Sections 122, 301, and 232, the administration expects to