On February 20, 2026, the Supreme Court handed down one of the most consequential economic rulings in modern American history. In a 6-3 decision in *Learning Resources, Inc. v. Trump*, 607 U.S. ___ (2026), the Court held that the International Emergency Economic Powers Act does not authorize the president to impose tariffs — striking down both the so-called “Liberation Day” tariffs on most U.S. imports and the earlier tariffs on goods from Canada, Mexico, and China.
Chief Justice John Roberts, writing for the majority, put it bluntly: the two words “regulate” and “importation,” separated by sixteen others in the IEEPA statute, “cannot bear such weight.” The ruling invalidated tariffs that had already collected more than $160 billion in revenue and were projected to raise $1.4 trillion over the next decade. The decision drew a striking coalition. Roberts was joined by Justices Sotomayor, Kagan, Gorsuch, Barrett, and Jackson — a mix that cut across the Court’s usual ideological lines. Justices Thomas, Alito, and Kavanaugh dissented. For importers, consumers, and businesses that had been absorbing higher costs for months, the ruling was an immediate financial event. For the Trump administration, it was a legal rebuke that forced a rapid pivot to alternative trade authorities within hours of the opinion dropping. This article breaks down what the Court actually said and why it matters, what tariffs were invalidated, how the administration responded the same day, what importers need to know about refunds, and what legal battles are still ahead.
Table of Contents
- What Did the Supreme Court Actually Rule About Trump’s “Liberation Day” Tariffs?
- How Did Trump Respond — and What Are the Legal Limits of His Backup Plan?
- What Happened to the $160 Billion Already Collected in IEEPA Tariffs?
- What Legal Tools Does the President Still Have to Impose Tariffs?
- Twenty-Four States Are Already Challenging the Section 122 Backup Tariffs
- Why the 6-3 Coalition in This Ruling Was Historically Unusual
- What Comes Next for Trade Policy and Tariff Authority
- Conclusion
- Frequently Asked Questions
What Did the Supreme Court Actually Rule About Trump’s “Liberation Day” Tariffs?
The core legal question was straightforward: does IEEPA — a 1977 law designed to give the president tools during national emergencies — include the power to impose tariffs? The Trump administration argued yes, pointing to the statute’s language authorizing the president to “regulate” the “importation” of goods during a declared emergency. Roberts and the majority said no. “IEEPA contains no reference to tariffs or duties,” Roberts wrote, and “until now no President has read IEEPA to confer such power.” That last point mattered — even presidents who had used IEEPA aggressively for sanctions and asset freezes had never claimed it allowed them to set tariff rates. The majority opinion also raised a constitutional problem with the administration’s reading of the statute. IEEPA covers both imports and exports. The Constitution explicitly prohibits taxes on exports. If “regulate” meant the power to tax, then IEEPA would partly violate the Constitution — because it would be granting the president authority to tax exports, which Congress itself cannot do.
Rather than read the statute in a way that would make it partly unconstitutional, the Court applied the constitutional avoidance doctrine and held that “regulate” in IEEPA means regulatory controls like sanctions and licensing requirements, not revenue-raising tariffs. Two distinct sets of tariffs fell under this ruling. The first were tariffs on imports from Canada, Mexico, and China, imposed under emergency declarations related to the flow of illicit drugs like fentanyl across U.S. borders. The second were the broader “Liberation Day” tariffs announced in April 2025, which applied to imports from most other countries under a separate emergency declaration tied to the U.S. trade deficit. Both relied on IEEPA as their legal foundation, and both were struck down entirely.
How Did Trump Respond — and What Are the Legal Limits of His Backup Plan?
The administration moved fast. On the same day as the ruling — February 20, 2026 — Trump signed a proclamation imposing a temporary 10 percent global tariff under Section 122 of the Trade Act of 1974, a completely different legal authority that had never been used at this scale. Trump called the Supreme Court’s decision “deeply disappointing” and said he was “ashamed” of some of the justices, calling them “very unpatriotic and disloyal to our Constitution.” However, Section 122 comes with a hard statutory limit that IEEPA did not: tariffs imposed under this authority can last only 150 days without an act of Congress to extend them. That puts the expiration around July 2026. The administration cannot simply renew the tariffs by executive action — it would need legislation, which means getting both chambers of Congress to vote.
Given the political dynamics in the Senate and the bipartisan nature of the Supreme Court majority that struck down the IEEPA tariffs, that extension is far from guaranteed. Businesses planning around the 10 percent rate need to understand that it has a built-in sunset. The administration also announced it would pursue tariffs through Section 232 (national security) and Section 301 (unfair trade practices) authorities. By March 12, 2026, investigations under those statutes had been formally opened targeting China, Mexico, the European Union, and several Southeast Asian countries. These are separate legal pathways with their own procedural requirements — Section 232 investigations, for example, typically take months and require a Commerce Department report before tariffs can be imposed. They are not overnight fixes, and each carries its own litigation risk.
What Happened to the $160 Billion Already Collected in IEEPA Tariffs?
The money question hit fast. On February 24, 2026 — four days after the ruling — the federal government officially stopped assessing and collecting IEEPA tariff deposits. But what about the billions already paid? On March 4, 2026, Judge Richard K. Eaton of the U.S. Court of International Trade ruled that all importers who paid IEEPA tariffs are entitled to refunds, including interest, from U.S. Customs and Border Protection. That ruling covers a massive pool of money.
The tariffs had collected more than $160 billion from importers across virtually every sector of the economy — from toy companies like Learning Resources (the lead plaintiff) to automakers, electronics manufacturers, agricultural suppliers, and small retailers importing consumer goods. The refund process through CBP is administrative, but given the volume, importers should expect significant processing delays. Companies that passed tariff costs along to customers face their own question: the refunds go to the importer of record, not to the end consumer who ultimately paid higher prices at the register. For small and mid-sized importers, the refund ruling is a genuine lifeline. Many businesses had absorbed tariff costs they could not fully pass along, squeezing margins for months. But the refunds will not undo all the damage. Some businesses restructured their supply chains, moved sourcing to different countries, or simply lost customers to competitors who were better positioned to absorb cost increases. Those sunk costs do not come back with a CBP refund check.
What Legal Tools Does the President Still Have to Impose Tariffs?
The Supreme Court’s ruling was sweeping in one sense — it took IEEPA off the table as a tariff authority entirely — but narrow in another. It did not say the president cannot impose tariffs. It said this particular statute does not grant that power. Several other statutes do, each with different conditions and constraints. Section 201 of the Trade Act of 1974 allows tariffs to protect domestic industries from import surges, but requires an investigation by the International Trade Commission and findings of serious injury. Section 232 of the Trade Expansion Act of 1962 allows tariffs on national security grounds — this was the authority used for the steel and aluminum tariffs that survived legal challenge during Trump’s first term. Section 301 allows tariffs in response to unfair foreign trade practices, which was the basis for the original China tariffs starting in 2018.
And Section 122, the emergency balance-of-payments authority now being used for the temporary 10 percent global tariff, is the most limited — capped at 150 days and 15 percent. The tradeoff for the administration is between speed and durability. IEEPA was attractive precisely because it let the president act unilaterally, immediately, and without a statutory time limit. The remaining authorities all involve procedural steps — investigations, public comment periods, agency reports — that take weeks or months. They also come with narrower scope. Section 232 requires a national security nexus. Section 301 requires findings about specific unfair practices by specific countries. None of them offer the sweeping, open-ended tariff power that the administration had claimed under IEEPA.
Twenty-Four States Are Already Challenging the Section 122 Backup Tariffs
The legal battles did not end with the Supreme Court ruling. In March 2026, twenty-four states filed a lawsuit challenging the new 10 percent global tariff imposed under Section 122. Their argument: the statutory conditions that trigger Section 122 authority — a “large and serious” balance-of-payments deficit that requires emergency action — are not actually met, and the administration is using Section 122 as a workaround for the authority the Supreme Court just struck down, not as a genuine response to a balance-of-payments crisis. This lawsuit carries real risk for the administration. Section 122 was designed for a specific economic scenario — a currency or payments crisis threatening the stability of the dollar — and has rarely been invoked. The trade deficit, while large, is a structural feature of the U.S.
economy that has existed for decades, not an acute emergency. If courts agree with the states’ characterization, the backup tariffs could fall too, leaving the administration with only the slower Section 232 and Section 301 processes. There is also a timing problem. Even if the administration wins the legal challenge, the Section 122 tariffs expire around July 2026 unless Congress acts. If the litigation is still ongoing when the 150-day clock runs out, the tariffs disappear regardless of the court’s decision. The administration is effectively racing two clocks — the legal challenge and the statutory sunset — simultaneously.
Why the 6-3 Coalition in This Ruling Was Historically Unusual
The majority in *Learning Resources v. Trump* was not a typical liberal-conservative split. Roberts, Gorsuch, and Barrett — all Republican appointees — joined the three Democratic-appointed justices.
Gorsuch in particular has a long track record of skepticism toward broad readings of executive power, grounded in textualism and the nondelegation doctrine. His concurrence emphasized that reading IEEPA to grant tariff power would effectively let Congress hand over its constitutional taxing authority to the president — a delegation he argued the Constitution does not permit. Barrett’s join was less surprising to Court watchers who had followed her questions during oral argument, where she pressed the government’s lawyer on why no prior president had ever read IEEPA this way if the power was supposedly there all along. The dissent, written by Justice Thomas and joined by Alito and Kavanaugh, argued that the majority was substituting its own policy preferences for the plain text of the statute and that “regulate importation” naturally includes the power to set conditions — including financial conditions — on the entry of goods.
What Comes Next for Trade Policy and Tariff Authority
The Supreme Court’s ruling resolved the IEEPA question, but it opened a much larger debate about presidential trade authority that Congress will eventually have to address. There are already proposals circulating on Capitol Hill to either explicitly grant new tariff authority to the president under defined conditions or to claw back existing delegations that some lawmakers believe have been stretched beyond their original intent. The ruling has given both camps ammunition. For businesses, the practical outlook is continued uncertainty.
The 10 percent Section 122 tariffs are temporary. The Section 232 and 301 investigations will take months to produce results. And any new tariffs imposed under those authorities will almost certainly face their own legal challenges. Companies that restructured supply chains around the IEEPA tariffs now face the question of whether to reverse those changes or hold steady in anticipation of new tariffs arriving through different legal channels. The one thing the Supreme Court made permanently clear: emergency powers are not a blank check, and the words of a statute have to actually say what the government claims they say.
Conclusion
The Supreme Court’s 6-3 ruling in *Learning Resources, Inc. v. Trump* was a definitive rejection of the most expansive claim of presidential tariff authority in modern American history. By holding that IEEPA does not authorize tariffs, the Court invalidated two sweeping sets of import taxes that had collected over $160 billion and reshaped global trade patterns. The refund ruling from the Court of International Trade means that money is coming back to importers — though not necessarily to the consumers who bore the ultimate cost. The decision forced the administration into backup legal authorities that are narrower, slower, and already facing their own legal challenges.
What happens next depends on Congress, the courts, and the administration’s ability to build tariff cases through traditional trade law channels. The Section 122 tariffs expire around July 2026 without legislative action. The state lawsuit challenging those tariffs could end them sooner. And the Section 232 and 301 investigations are months from producing actionable results. For importers, the immediate priority is filing for refunds on IEEPA tariffs already paid. For everyone else, this ruling is a reminder that even in an era of expansive executive power, there are lines the courts will enforce — and “regulate” does not mean “tax.”.
Frequently Asked Questions
Are all tariffs on imports eliminated after this ruling?
No. The ruling only struck down tariffs imposed under IEEPA. Tariffs under other authorities — including the new temporary 10 percent tariff under Section 122, existing Section 232 tariffs on steel and aluminum, and Section 301 tariffs on Chinese goods — remain in effect unless separately challenged and overturned.
How do importers get refunds on IEEPA tariffs they already paid?
The Court of International Trade ruled on March 4, 2026, that all importers who paid IEEPA tariffs are entitled to refunds with interest from U.S. Customs and Border Protection. Importers should file through CBP’s administrative refund process, though significant processing delays are expected given the volume of claims.
Will consumers see lower prices immediately?
Not necessarily. Refunds go to the importer of record, not to end consumers. Whether price reductions reach retail shelves depends on individual businesses and competitive market dynamics. Some price relief should flow through over time, but it will not be automatic or immediate.
How long will the 10 percent Section 122 tariff last?
Section 122 limits tariffs to 150 days without Congressional authorization to extend. The tariff signed on February 20, 2026, would expire around July 2026 unless Congress passes legislation to continue it. Twenty-four states have also filed a lawsuit challenging these tariffs.
Which justices voted to strike down the tariffs?
Chief Justice Roberts wrote the majority opinion, joined by Justices Sotomayor, Kagan, Gorsuch, Barrett, and Jackson. Justices Thomas, Alito, and Kavanaugh dissented.
Can the president impose new tariffs through other legal authorities?
Yes, but with significant constraints. Section 232 requires a national security justification and a Commerce Department investigation. Section 301 requires findings of unfair trade practices. Both involve lengthy procedural steps and are subject to their own legal challenges. None offer the sweeping, immediate authority that IEEPA was claimed to provide.