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US tariff surge of 2025–26 and the IEEPA ruling
2025–; IEEPA tariffs struck down Feb 2026· Crisis or event
Fact, law or dataA rule, statute, definition or measured number.
A sweeping 2025 rise in US import taxes, the steepest since the 1930s, partly struck down by the Supreme Court in February 2026.
See it on the Money & Finance map →How it works
Citing the International Emergency Economic Powers Act (IEEPA), a 1977 sanctions law, President Trump tariffed Canada, Mexico and China in early 2025, then on April 2 ('Liberation Day') set a 10% baseline on nearly all imports plus higher 'reciprocal' rates. Duties on China briefly hit 145%. Separate national-security tariffs under Section 232 lifted steel and aluminum to 50%. In February 2026 the Supreme Court ruled IEEPA does not authorize tariffs. Section 232 duties stayed, and a temporary global tariff followed under Section 122.
Why it matters
It ended decades of falling US tariffs, raised costs for importers and builders, and pushed the question of who controls trade policy back to Congress and the courts.
Facts, rules and data
Executive orders and CBP tariff schedules; Treasury data showing customs revenue more than doubled in fiscal 2025; the Supreme Court's February 2026 opinion; Yale Budget Lab estimates of the average effective rate.
Debates and risks
Whether importers recover IEEPA duties already paid, how long replacement tariffs last (Section 122 caps them at 15% for 150 days), and how much foreign exporters absorbed remain open.
Connections (9)
▸US tariff surge of 2025–26 and the IEEPA ruling revived broad use of Tariffs and trade warsFact, law or data
The connection
After decades of falling US tariffs, the 2025 measures restored them as a central tool of economic policy, used for revenue, leverage over trading partners, and pressure on issues like migration and fentanyl. They raised the average effective US tariff rate to its highest level since the 1930s.
When and why
Washington, from February 2025, under President Trump; challenged in the Court of International Trade and decided by the Supreme Court in February 2026.
How we know
Executive orders, CBP tariff schedules and Treasury customs receipts document the scope; the Yale Budget Lab and others track the average rate.
Debates and risks
Whether tariffs stay this high after the court ruling and future elections, and whether Congress reasserts its constitutional tariff power, is unknown.
▸US tariff surge of 2025–26 and the IEEPA ruling were collected at the border by Customs and Border Protection: tariffs at the borderFact, law or data
The connection
Every new tariff order became a line in the Harmonized Tariff Schedule that CBP applies at entry. Importers' customs brokers filed entries, and CBP assessed and collected the higher duties, checked claims about where goods came from to stop transshipment, and enforced the end of the $800 duty-free allowance for small parcels.
When and why
US ports, airports and mail facilities from February 2025, when new duties on Chinese goods took effect, and from April 2025, when a 10% baseline tariff reached nearly all imports.
How we know
Treasury's Monthly Treasury Statements report customs receipts; CBP's cargo system messages implemented each tariff change; the February 2026 Supreme Court ruling addressed the IEEPA duties.
Debates and risks
How refunds of the IEEPA tariffs struck down in 2026 will be handled, and how much evasion through mislabeled origins occurs, remain open.
▸US tariff surge of 2025–26 and the IEEPA ruling added to Inflation: rising prices, shrinking purchasing powerMainstream view
The connection
Importers paid the new duties and passed part of them on. Prices of tariff-exposed goods, such as furniture, appliances and auto parts, rose faster than other goods in 2025. Economists estimated tariffs added several tenths of a point to core inflation: a one-time jump in the price level unless it feeds into wages and expectations.
When and why
US goods prices, mid-2025 onward; the Fed under Jerome Powell cited tariffs as a reason inflation stayed above its 2% target.
How solid is the link?
CPI detail by category, the Harvard Pricing Lab's tracking of online prices, and Fed staff estimates show partial pass-through to consumers.
Debates and risks
How much foreign exporters and US firms' margins absorbed, and whether the effect proves one-time or persistent, is still being measured.
▸US tariff surge of 2025–26 and the IEEPA ruling aimed to shrink Trade deficits and the current accountFact, law or data
The connection
The administration cast trade deficits as proof that other countries take advantage of the US, and set 'reciprocal' rates largely from each partner's goods surplus with the US. Most economists expected little lasting effect: deficits reflect national saving and investment, and a stronger dollar or shifting supply chains can offset tariffs.
When and why
The April 2, 2025 formula divided each country's goods surplus with the US by its exports to the US, then halved it, with a 10% floor.
How we know
Census trade data show the record early-2025 import rush and the later drop; the US Trade Representative published the formula.
Debates and risks
Whether lower deficits with targeted countries persist, or trade simply reroutes through others such as Vietnam and Mexico, is still being measured.
▸Incoterms: who pays freight and when risk passes decide who bears duties in US tariff surge of 2025–26 and the IEEPA rulingFact, law or data
The connection
Under DDP the seller clears US customs and pays the duties; under the other ten terms the buyer does. When 2025 tariffs jumped, sellers who had quoted DDP absorbed sudden costs, and many moved to DAP or FCA. Legally, the importer of record still owes US Customs, whatever the sales contract says.
When and why
Across US imports in 2025–26, notably e-commerce and goods from China, where tariffs briefly reached 145%.
How we know
ICC Incoterms 2020 definitions, US Customs rules on the importer of record, and trade-press reports of renegotiated terms.
Debates and risks
Who gets refunds of the IEEPA tariffs struck down in February 2026: the importer of record that paid, or a seller that bore them under DDP.
▸US tariff surge of 2025–26 and the IEEPA ruling extracted Japan and Korea pledges of Foreign direct investment (FDI) vs. portfolio flowsFact, law or data
The connection
Facing tariffs of 25% or more, Japan agreed in July 2025 to a $550 billion fund for US projects chosen by Washington, and Korea to $350 billion, later set as $200 billion in capped yearly installments plus $150 billion for shipbuilding. In exchange, US tariffs on their goods were cut to 15%.
When and why
Negotiated in Washington and at summits from July to November 2025 between the Trump administration and the Japanese and Korean governments.
How we know
White House fact sheets, joint statements and the investment memorandums signed with Japan and Korea in 2025.
Debates and risks
How much money will actually flow, and whether the pledges hold after the Supreme Court's February 2026 ruling against the IEEPA tariffs, are open questions.
▸Treasury market stress: the 2020 'dash for cash' and 2025 selloff flared again after April announcements in US tariff surge of 2025–26 and the IEEPA rulingFact, law or data
The connection
After the April 2 tariff announcement, stocks fell and Treasuries at first rallied, as usual. Then from April 7 they sold off: the 10-year yield rose about half a point in five days to near 4.5%, while the dollar also fell, a sign investors were cutting US exposure. On April 9 President Trump paused most reciprocal tariffs for 90 days.
When and why
April 7–11, 2025, worldwide; the 30-year yield briefly topped 5%, and the 10-year had its biggest weekly rise since 2001.
How we know
Daily Treasury yield data, auction results that week, and President Trump's own remarks that he had been watching the bond market.
Debates and risks
Whether foreign selling, hedge-fund unwinds, or doubts about US policy and the dollar's safe-haven role drove the move is still debated.
▸Industrial real estate: warehouses, ports and e-commerce faces shifting import flows from US tariff surge of 2025–26 and the IEEPA rulingMainstream view
The connection
Tariffs change where goods enter and how long they sit. Importers rushed shipments in before deadlines in early 2025, filling warehouses, then cut orders, leaving space empty. Higher duties on Chinese goods shift sourcing to Mexico and Southeast Asia, helping border hubs such as Laredo while pressuring port markets, and raise steel costs for new buildings.
When and why
Ports of Los Angeles and Long Beach, the Inland Empire and US–Mexico border markets, 2025–26.
How solid is the link?
Port container counts showing early-2025 surges and later drops, broker leasing reports, and Census trade data by country.
Debates and risks
Whether tariffs bring lasting reshoring and factory demand or simply shrink trade volumes and warehouse needs is debated.
▸The London gold market and the LBMA Gold Price saw gold rush to New York amid US tariff surge of 2025–26 and the IEEPA rulingFact, law or data
The connection
After the 2024 election, traders feared tariffs on imported gold, so New York COMEX futures traded well above London prices. Banks profited by flying bars from London to New York, often recast in Switzerland to fit COMEX sizes. COMEX stocks rose about 400 tonnes in roughly three months, and Bank of England withdrawal waits stretched to four to eight weeks.
When and why
London, Switzerland and New York, December 2024–February 2025, and again in August 2025 after a US customs ruling on Swiss bars.
How we know
COMEX warehouse reports, Bank of England and LBMA vault data, Swiss export statistics, and the White House's April 2025 bullion exemption.
Debates and risks
Whether the shift was only temporary tariff arbitrage or a lasting move of gold toward the US, and how tight London really ran.