Liberation Day Tariffs: One Year On, Supreme Court Killed Them and $166B Is Being Refunded

Exactly one year ago today — April 2, 2025 — President Trump signed Executive Order 14257 and declared it "Liberation Day." The order imposed sweeping tariffs on nearly every US trading partner using emergency powers under the International Emergency Economic Powers Act (IEEPA). A 10% baseline rate on most countries. 25% on Canada and Mexico. Up to 145% on Chinese goods, which briefly reduced Chinese imports to a near-standstill.

One year later: the Supreme Court ruled them unconstitutional in February 2026. The US government collected $166 billion in tariffs it was not legally authorized to collect. Customs is now processing refunds for 330,000 businesses across 53 million individual import entries. The refund process is supposed to be complete by mid-April 2026.

The tariffs are gone. The damage they did — and the money about to return — is not a minor footnote.

What Happened on Liberation Day

Trump invoked IEEPA — a 1977 national security law designed for sanctions and asset freezes — as the legal authority for sweeping import tariffs. IEEPA had never been used this way before. The argument was that the US trade deficit constituted a "national emergency" that justified emergency executive action.

The tariff structure had two layers. A universal 10% baseline on nearly all imports from all countries, effective April 5, 2025. And "reciprocal" rates on specific countries based on their own trade barriers — which were not actually calculated from those countries' tariff rates but from a formula dividing each country's trade surplus with the US by its total US-bound exports. Critics called this math arbitrary; the administration called it fair.

The rates that resulted: the EU faced 20%, Japan 24%, Vietnam 46%, Cambodia 49%. China, which was already subject to existing Section 301 tariffs, faced additional IEEPA tariffs taking the combined rate to 145%. At 145%, most Chinese imports became economically unviable. Supply chains that had not already diversified out of China began emergency rerouting.

For the tech industry specifically: semiconductors manufactured in Taiwan and South Korea (TSMC, Samsung) were partially exempted from the steepest rates but still subject to baseline tariffs. Consumer electronics assembled in China — the majority of US consumer electronics at the time — faced the 145% rate, briefly disrupting iPhone, laptop, and consumer device supply chains until manufacturers accelerated Vietnam and India production shifts.

The Supreme Court Ruling: Learning Resources v. Trump

On February 20, 2026, the Supreme Court ruled 6-3 in Learning Resources, Inc. v. Trump that IEEPA does not grant the president authority to impose tariffs. The majority opinion held that tariff authority is a Congressional power under Article I of the Constitution and that IEEPA's text — which allows the president to "regulate or prohibit" transactions in a national emergency — does not extend to imposing taxes on imports.

The ruling was not a close call on the law. Six justices agreed that IEEPA does not say "tariff" and the president cannot read that power into a law where Congress did not put it. The three dissenting justices argued on deference grounds — that courts should not second-guess executive emergency determinations — not that tariffs were clearly authorized.

The practical effect was immediate. The Court of International Trade formalized the refund process in early March 2026. US Customs and Border Protection (CBP) is tasked with processing refunds across 53 million individual import entries. The timeline: complete by mid-April 2026. The dollar amount: $166 billion.

Who Gets $166 Billion Back

The refunds go to the 330,000+ businesses that paid IEEPA tariffs on imported goods between April 5, 2025 and the date tariff collection stopped post-ruling. This is not a consumer-facing refund — it goes to importers, which are primarily:

Large retailers: Amazon, Walmart, Target, Best Buy imported enormous volumes of Chinese-manufactured goods subject to 145% tariffs. Their tariff bills ran into billions individually. Amazon and Walmart are among the largest single beneficiaries of the refund.

Consumer electronics companies: Apple, Dell, HP, Lenovo US operations all imported devices or components subject to the elevated rates. Apple's tariff exposure was particularly acute because despite accelerating India production, the majority of iPhones sold in the US during the tariff period were assembled in China.

Semiconductor equipment: ASML, Applied Materials, Lam Research import equipment components globally. The baseline 10% tariff on European and Asian components added costs to domestic chip manufacturing — costs that are now being refunded.

Small and medium importers: 330,000 businesses filed import entries during the tariff period. The majority by count — though not by dollar value — are small businesses that import manufactured goods, components, or materials. For a small importer who paid $500,000 in IEEPA tariffs over the year, the refund is existentially significant.

The refund does not restore the economic damage. Prices that were raised to cover tariff costs were not uniformly lowered when the tariffs were removed. Supply chains that were rerouted — away from China toward Vietnam, India, Mexico — do not snap back. Factories built in alternative locations are not abandoned. The tariffs did structural things to supply chains and pricing that the refund does not reverse.

What the Year Did to Tech Supply Chains

The 10-month period from April 2025 to February 2026 was a forced restructuring event for tech hardware supply chains. The effects:

Apple's India acceleration: Apple had been gradually shifting iPhone assembly to India since 2023. The 145% China tariff turned "gradual" into "emergency." Apple expanded Foxconn and Tata Electronics India capacity at a pace it had originally planned for 2027-2028. India-assembled iPhones went from roughly 15% of US-bound production to approximately 35% during the tariff period.

Vietnam electronics surge: Vietnam was subject to a 46% tariff — high, but significantly below China's 145%. Laptop and consumer electronics assembly that had been moving to Vietnam accelerated. Samsung's Vietnam smartphone assembly plants ran at maximum capacity throughout the tariff period.

Semiconductor equipment costs: The tariffs added 10-20% to the cost of semiconductor manufacturing equipment imported from Japan, Europe, and South Korea — equipment used to build fabs in the US under the CHIPS Act. This was the sharpest irony of the tariff policy: the US government was simultaneously subsidizing domestic chip manufacturing under CHIPS and taxing the imported equipment needed to build those fabs.

Server and data center hardware: The AI infrastructure buildout — Nvidia GPUs, server chassis, networking equipment — involves components manufactured across Taiwan, South Korea, Japan, and China. The tariff period added material cost to every data center deployment, partially explaining why some hyperscaler CapEx timelines slipped in H2 2025.

What Changes Now That $166B Is Coming Back

The refund is creating an unusual liquidity event in the corporate sector. Companies that had been carrying tariff costs as expense are now expecting cash refunds that were not in their financial models.

For large retailers and tech companies: the refunds arrive as one-time cash inflows that will show up in Q1/Q2 2026 earnings as gains or reduced cost-of-goods-sold adjustments. Amazon's tariff refund likely runs into multiple billions — a material income statement item even at Amazon's scale.

For small importers: the refund is significant but the administrative burden is real. CBP is processing 53 million import entries. Each entry requires verification. The mid-April completion deadline is aggressive. Some businesses report uncertainty about whether their entries are properly registered for refund processing.

The supply chain structural changes do not reverse. Apple is not moving iPhone production back from India. Samsung is not dismantling its Vietnam assembly lines. The tariffs lasted long enough to make the new supply chain configurations economic and operational. The CHIPS Act domestic fab investments are not disrupted by the tariff reversal — if anything, the reversal removes a paradox (taxing the equipment used to build the fabs the US is subsidizing).

What Comes Next on Tariffs

The Supreme Court ruling eliminated the IEEPA tariff authority for this specific use case, but it did not eliminate trade tariffs entirely. The existing Section 301 tariffs on China (originally imposed by the first Trump administration) remain in place — they have a different statutory basis. Section 232 tariffs (national security basis) on steel and aluminum also remain.

Trump has indicated he will pursue tariff authority through other mechanisms — potentially pushing Congress to pass explicit tariff legislation, which would not face the same constitutional objection. Whether Congress provides that authority is uncertain.

The broader question for tech: the tariff period demonstrated that supply chain geography matters enormously when tariff policy changes. Companies that had already diversified out of single-country manufacturing (Apple's India expansion, Samsung's Vietnam capacity) were less disrupted than those caught with concentrated China exposure. That lesson is permanent regardless of what happens to tariff policy in 2026-2027.

Key Takeaways

• One year ago today (April 2, 2025): Trump imposed Liberation Day tariffs via IEEPA — 10% baseline on most countries, 145% on China
• February 20, 2026: Supreme Court ruled 6-3 in Learning Resources v. Trump that IEEPA does not authorize tariffs — struck them down as unconstitutional
• $166 billion refund: being processed by CBP for 330,000 businesses across 53 million import entries — target completion mid-April 2026
• Tech winners: Amazon, Apple, Walmart, Dell, HP are among largest refund recipients — Apple's India pivot was accelerated by the 145% China rate
• Supply chains changed permanently: Vietnam electronics surge, Apple India scale-up, and Samsung capacity expansions do not reverse with the refund
• Developer/data center impact: tariffs added 10-20% to imported semiconductor equipment costs, partially explaining H2 2025 CapEx delays in hyperscaler deployments
• What remains: Section 301 and Section 232 tariffs on China and steel/aluminum still in place — only IEEPA tariffs were struck down