Trump Tariffs Timeline: Deals, Supreme Court Ruling, and Refunds

The Trump tariffs timeline runs from the first days of his second term in January 2025 through a Supreme Court ruling in February 2026 that dismantled the legal basis for most of the duties, and into a mid-2026 landscape shaped by what survived. This article walks through the sequence: what was imposed, when, under which legal authority, what was negotiated away, what the courts stopped, and what still applies.

The First Tariffs: February 2025

Trump signed the “America First Trade Policy” memorandum on January 20, 2025, directing an investigation into trade deficits and foreign trade practices.¹ The first actual tariffs came on February 1, through three executive orders that invoked the International Emergency Economic Powers Act (IEEPA) and tied the duties to border security and fentanyl.²

Non-USMCA-originating goods from Canada and Mexico were hit with a 25% additional duty. Canadian energy and potash got a lower 10% rate. Goods qualifying under the United States-Mexico-Canada Agreement continued to receive preferential treatment.¹ China faced an initial 10% fentanyl-linked tariff, raised to 20% in March.³

China moved fast. On February 4, Beijing announced 10–15% tariffs on U.S. coal, liquefied natural gas, oil, agricultural machinery, and vehicles. When the U.S. raised the fentanyl rate in March, China responded with 10–15% duties on more than 700 agricultural and food products, including soybeans, pork, wheat, and poultry.⁴

Also in February, Proclamations 10895 and 10896 reimposed Section 232 tariffs on steel and aluminum imports at 25% for all countries, reviving national-security duties originally imposed in 2018.⁵

Automobile Tariffs: March 2025

On March 26, Proclamation 10908 imposed a 25% Section 232 tariff on automobiles and automobile parts. The vehicle tariff took effect April 3; parts followed on May 3.⁶

The design was unusual. For USMCA-qualifying vehicles, the 25% rate applied only to the non-U.S. content. Importers could document U.S.-origin components and pay the duty only on the remainder. Overstating domestic content meant the full 25% applied retroactively to the entire vehicle value.⁶ USMCA-qualifying parts got a temporary suspension while Commerce set up a content-based process.⁷

Liberation Day: April 2, 2025

The centerpiece of the campaign was signed on April 2 and branded “Liberation Day.” It had two layers: a universal 10% tariff on virtually all imports, effective April 5, and higher country-specific “reciprocal” rates on 57 trading partners, effective April 9.⁸⁹

Country-specific rates were derived from a formula: the U.S. trade deficit with a country, divided by total imports from that country, halved. The European Union came out at 20%, Japan at 24%, and China at 34% — the last stacking on top of the existing 20% fentanyl tariff for a combined 54%. Rates ran as high as 50%.⁸⁹

Several categories were carved out: goods already under Section 232 duties (steel, aluminum, autos), plus semiconductors, pharmaceuticals, copper, lumber, and certain critical minerals — all pending separate investigations. Canada and Mexico were exempt from the new reciprocal rates so long as their goods qualified under USMCA, though their existing 25% border-emergency tariffs continued.⁹

The China Escalation Spiral

China matched Liberation Day on April 4 with a 34% tariff on all U.S. goods. The U.S. raised its rate further. China went to 84%, then to 125% by April 12. The U.S. rate on Chinese goods reached 125% by mid-April, and once existing fentanyl and Section 301 duties were included, the effective combined rate ran to roughly 145%.⁴¹⁰

Beijing also went well beyond tariffs. It added 43 U.S. companies to its Export Control List over three rounds, placed 29 U.S. entities on its Unreliable Entity List, imposed export licensing on 12 critical minerals including seven rare earths, suspended agricultural imports from multiple U.S. exporters, and opened antitrust, anti-circumvention, and antidumping investigations. It filed WTO complaints after each round of U.S. increases.⁴

The 90-Day Pause

On April 9, the same day the country-specific rates took effect, Trump paused them for 90 days for every country except China, dropping most partners back to the 10% baseline. Steel, aluminum, auto, and Canada/Mexico tariffs stayed in place. For China, the rate instead went up, from 104% to 125%.¹⁰

Two days later, a presidential memorandum exempted a broad set of electronics from the reciprocal tariffs retroactive to April 5: smartphones, computers, semiconductor manufacturing equipment, monitors, solid-state storage, integrated circuits, flat panel displays, and various semiconductor devices. The exemptions were signaled as temporary and did not affect the IEEPA fentanyl duties.¹¹

Congress Stands Aside

Legislative attempts to constrain the tariffs mostly failed. Senator Ron Wyden introduced S.J.Res.49 to terminate the underlying national emergency; on April 30 it lost 49–49 in the Senate, and a motion to table reconsideration passed 50–49.¹² On September 16, 2025, the House voted 213–211 to block congressional challenges to Trump’s tariff declarations through early 2026. House Majority Leader Steve Scalise later agreed to shorten the block from March 2026 to the end of January 2026.¹³ A second Senate resolution, S.J.Res.88, cleared the Senate but had not received a House floor vote by early 2026.¹⁴

Geneva De-Escalation With China: May 2025

On May 12, after talks in Geneva, the U.S. and China announced a mutual 115-percentage-point tariff reduction, each side retaining an additional 10% duty. The U.S. suspended its 34% reciprocal tariff for 90 days, holding at 10%, and rolled back the April 8–9 escalation. All duties predating April 2 were retained: Section 301 tariffs, Section 232 tariffs, fentanyl-related tariffs, and standard most-favored-nation rates.¹⁵ China reduced its retaliatory rate to 10% in parallel.¹⁶

The UK Deal and Expanding Section 232 Tariffs

The first bilateral agreement was the U.S.-UK “Economic Prosperity Deal,” announced May 8 and implemented June 16. The first 100,000 UK-manufactured vehicles imported annually would face a 10% total tariff (7.5% plus the 2.5% MFN rate), with units beyond that at the standard 25% Section 232 rate. The UK also got preferential steel and aluminum treatment, staying at 25% when others were later raised to 50%. In exchange, the UK opened access for U.S. beef, ethanol, and other agricultural goods, estimated at $5 billion in exporter opportunity. The U.S. said it was disappointed that the UK refused to address its Digital Services Tax.¹⁷¹⁸

On June 4, Section 232 steel and aluminum tariffs were doubled from 25% to 50% for all countries other than the UK. Proclamation 10947 justified the increase by saying the prior rates had not enabled the industries to develop the capacity needed for national defense.¹⁹ In August, the scope broadened again, taxing the steel and aluminum content of finished goods from motorcycles to lawn mowers.⁵

The 90-day reciprocal-tariff pause was due to expire July 9. Trump initially said he would not extend it, but Treasury Secretary Scott Bessent signaled the administration would “roll the date forward” for countries negotiating in good faith. Bessent said 18 important partners were actively in talks.²⁰²¹

Copper and Lumber

On July 30, Proclamation 10962 imposed a 50% Section 232 tariff on semi-finished copper products and copper-intensive derivatives, effective August 1. Commerce had recommended 30%. The tariff covered about 70 product categories, including pipes, wires, rods, sheets, connectors, and cables, but excluded raw copper ores, concentrates, anode and cathode material, and scrap. Products already subject to the 25% auto tariff were also excluded.²²²³

A September 29, 2025 proclamation established tiered lumber rates: 10% on softwood timber and lumber, 30% on certain upholstered wooden products, and 50% on kitchen cabinets and vanities, the cabinet rate taking effect January 1, 2026.²⁴

Canada and Mexico

By August 2025, Canada faced a 35% blanket tariff. Mexico was threatened with 30% but received a 90-day pause for negotiations. USMCA carve-outs for compliant goods stayed in place throughout. Canada initially retaliated but then dropped its digital services tax to advance talks. Mexico pursued quiet diplomacy focused on migration and drug trafficking rather than retaliation.²⁵

Bilateral Deals Through Early 2026

The administration used tariff leverage to negotiate a rapid series of bilateral agreements. The major ones:

European Union, August 21, 2025: a political agreement setting a 15% tariff ceiling on most EU exports, with zero or near-zero tariffs on aircraft, generic pharmaceuticals, and certain natural resources. The EU agreed to liberalize U.S. imports and procure American energy to replace Russian supplies.²⁶
Japan, September 4, 2025: a framework setting a 15% baseline tariff, with Japan committing to $8 billion per year in U.S. agricultural purchases, accepting U.S.-certified vehicles without additional testing, and pledging $550 billion in U.S. investment.²⁷
September 5, 2025 executive order: revised the reciprocal-tariff scope, excluding types of gold, certain critical minerals, chemicals, plastics, and pharmaceutical products pending Section 232 investigations, and identifying product categories eligible for zero rates for countries that concluded trade and security agreements.²
Malaysia, Cambodia, Thailand, Vietnam, October 26, 2025: four Southeast Asian reciprocal-trade agreements signed or framed the same day.²
China, November 1, 2025: a formal “Economic and Trade Arrangement.” After China tightened controls on 13 fentanyl precursor chemicals, the U.S. reduced its fentanyl-related tariff from 20% to 10%.³
South Korea, Switzerland, and Liechtenstein, November 14, 2025: separate trade and investment frameworks.²
India, February 6–9, 2026: an interim agreement under which India would eliminate or reduce tariffs on all U.S. industrial goods and various agricultural products, while the U.S. would apply an 18% reciprocal tariff on Indian goods, with exemptions for generic pharmaceuticals, gems, and aircraft parts. India committed to $500 billion in U.S. energy, aircraft, and technology purchases over five years.²⁸

Additional agreements were signed with El Salvador, Guatemala, Argentina, Bangladesh, Taiwan, Ecuador, Indonesia, and North Macedonia between late January and March 2026.²

Semiconductors and Pharmaceuticals

The categories initially held out of reciprocal tariffs eventually got their own regimes. On January 14, 2026, a proclamation imposed a 25% tariff on a narrow set of advanced computing chips and derivatives, with broader semiconductor tariffs deferred pending international negotiations.²⁹

A pharmaceutical proclamation on April 2, 2026 imposed a 100% tariff on patented pharmaceuticals and active ingredients, with substantial carve-outs: 20% for companies onshoring production (rising to 100% by 2030), 15% for Japan, the EU, South Korea, and Switzerland, 10% for the UK, and full exemptions for orphan drugs, nuclear medicines, cell and gene therapies, and generics. The tariffs are scheduled to begin taking effect July 31, 2026.³⁰²⁴

The Section 232 investigation on critical minerals was completed, but the administration opted not to impose tariffs, pursuing international negotiations instead. A status report is due July 13, 2026.²⁴

February 20, 2026: The Supreme Court Ruling

The Supreme Court ruled 6–3 on February 20, 2026, that the International Emergency Economic Powers Act does not authorize the President to impose tariffs. The consolidated cases were Learning Resources, Inc. v. Trump and Trump v. V.O.S. Selections, Inc.³¹

Chief Justice Roberts wrote the majority opinion, joined by Justices Sotomayor, Kagan, Gorsuch, Barrett, and Jackson. The Court held that IEEPA’s authority to “regulate importation” does not include the power to tax, noting that in the statute’s half-century of existence no prior president had invoked it to impose tariffs. A plurality of Roberts, Gorsuch, and Barrett went further, invoking the “major questions doctrine”: because tariffs represent the “core congressional power of the purse,” Congress would have had to delegate that power explicitly, which it did not.³²

The government conceded that the President lacks inherent peacetime tariff authority; the only question was whether IEEPA supplied it. The Court said it did not. Justice Kavanaugh warned in dissent that the government could be required to refund billions of dollars to importers.³¹

The ruling was narrow in one important respect. It affected only IEEPA-based tariffs. Section 232 tariffs on steel, aluminum, automobiles, copper, lumber, semiconductors, and pharmaceuticals were unaffected, and so were Section 301 tariffs on Chinese goods and other statutory authorities.³³

The Section 122 Surcharge

The administration responded the same day. Trump signed Proclamation 11012 invoking Section 122 of the Trade Act of 1974, which authorizes temporary import surcharges to address “fundamental international payments problems.” The proclamation established a 10% temporary surcharge on most imports, effective February 24, 2026, with a statutory duration of 150 days, expiring July 24, 2026.³⁴

The surcharge carried extensive exemptions: critical minerals, energy products, certain agricultural goods (beef, tomatoes, oranges), pharmaceuticals, certain electronics, passenger vehicles and trucks, aerospace products, goods qualifying for USMCA duty-free entry, and textile and apparel articles duty-free under DR-CAFTA. Products already subject to Section 232 tariffs were also excluded.³⁵

Refunds

With the IEEPA tariffs unlawful, an estimated $166 billion in collected duties became subject to potential refunds. Customs and Border Protection launched the Consolidated Administration and Processing of Entries (CAPE) system, with Phase 1 going live on April 20, 2026. By late May, the system had accepted roughly $85 billion in refund claims and certified about $20.6 billion to Treasury.³⁶

The process was contested. Senior Judge Richard Eaton at the Court of International Trade ordered CBP to reliquidate all entries subject to IEEPA duties, including those already finally liquidated. The Department of Justice appealed on June 2, arguing the “universal injunction” exceeded the judge’s jurisdiction and that refunds for liquidated entries should require individual importer actions. A hearing was set for June 9, at which the CBP Commissioner was ordered to appear in person.³³

New Section 301 Investigations

The Supreme Court decision did not stop the administration from opening new fronts. On March 12, 2026, the U.S. Trade Representative initiated 60 simultaneous Section 301 investigations into economies that allegedly failed to impose and enforce prohibitions on the importation of goods produced with forced labor. On June 2, USTR found that all 60 economies, including the EU, had failed on both counts. The proposed remedy was 10% additional duties on economies that have some form of forced-labor import prohibition in place, and 12.5% on all others. Public hearings were set for July 7, 2026.³⁷³⁸

Economic Impact

The Penn Wharton Budget Model, in an April 2025 analysis, projected that the tariffs as then configured would reduce long-run GDP by roughly 6% and wages by 5%, costing a middle-income household $22,000 over a lifetime. Total imports were projected to fall by $6.9 trillion over a decade. The tariffs were estimated to raise $4.5 trillion in revenue over 10 years on a dynamic basis, but to reduce GDP and wages by more than twice as much as a revenue-equivalent corporate tax increase.³⁹

A Federal Reserve study published in March 2026 found the price effect had been gradual rather than a one-time spike. By December 2025, retail prices for goods imported from China were about 8.5% higher year-over-year. Prices for goods from other countries began rising after the April 2025 announcement and exceeded 5% year-over-year by December. The study estimated a conservative tariff pass-through rate of 28–32% for Chinese imports.⁴⁰

The Tax Foundation, writing in March 2026 after IEEPA tariffs had been struck down, estimated the remaining tariffs (Section 232 and the Section 122 surcharge) increased the tax burden per household by $600 in 2026 and would reduce long-run GDP by 0.2%. The average effective tariff rate, which had risen to 7.7% in 2025, was estimated at 5.6% for 2026. The overall trade deficit fell by just $2.1 billion in 2025, and the goods deficit actually increased by $25.5 billion, offset by a larger services surplus.⁴¹

Where Things Stand in Mid-2026

The IEEPA reciprocal tariffs, the border-emergency duties on Canada, Mexico, and China, and the fentanyl-related tariffs on China are gone, working through the refund process.³

What remains is a wall of Section 232 tariffs: 50% on steel and aluminum (25% for the UK), 25% on automobiles, 50% on copper, tiered rates on lumber, 25% on certain semiconductors, and staged pharmaceutical tariffs beginning July 2026. The 10% Section 122 surcharge runs through July 24, 2026 unless Congress extends it. The proposed Section 301 forced-labor duties are pending public comment. The USMCA is scheduled for its first mandatory joint review beginning July 2026, and analysts expect it to become a high-stakes negotiation.²⁵ The bilateral deals with the UK, Japan, the EU, China, India, South Korea, and more than a dozen other partners are at various stages of implementation, leaving a patchwork of country-specific rates in place.

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