Supreme Court Limits Executive Power on Tariffs — What Businesses Should Know

On February 20, 2026, the United States Supreme Court issued a significant decision in Learning Resources, Inc. v. Trump and related consolidated cases, holding that the International Emergency Economic Powers Act (IEEPA) does not grant the President authority to impose broad tariffs on imports. In other words, the Court ruled that the Executive Branch lacked statutory authority under IEEPA to levy sweeping import duties. This decision has major implications for U.S. trade law and tariff policy.

What the Supreme Court Decided

The Supreme Court, in a 6–3 decision, held that IEEPA’s text does not authorize tariffs:

  • IEEPA allows the President, after declaring a national emergency, to “regulate… importation… of… any property in which any foreign country… has any interest” — a language the government argued included tariff authority.

  • The Court concluded that “regulate importation” in IEEPA does not encompass the power to impose tariffs, which are a form of taxation and historically fall under Congress’s exclusive authority to set “Taxes, Duties, Imposts and Excises.”

The majority opinion emphasized that when Congress intends to give authority to levy tariffs, it does so explicitly in statute. Because IEEPA says nothing specific about tariffs or duties, it cannot serve as a basis for broad tariff impositions under emergency powers.

Legal and Constitutional Context

Because the Constitution assigns tariff and taxation powers to Congress, any delegation of that authority must be clear. The justices agreed that IEEPA’s grant of executive power to “regulate… importation” does not clearly delegate the broad power to impose tariffs, particularly without explicit language about tariff rates, duration, or procedures Congress normally includes in tariff legislation.

A portion of the majority cited principles like the major questions doctrine — which requires clear congressional authorization for actions of vast economic and political significance — but the core holding rests on the simple statutory interpretation that IEEPA does not mention tariffs.

Three justices dissented, arguing that historical practice and statutory language could support tariff authority under IEEPA. However, they were in the minority and did not affect the controlling outcome.

Practical Impact on Current Tariffs

The Supreme Court’s ruling means that tariffs imposed under IEEPA authority are no longer legally justified. The ruling specifically targets tariff programs where emergency powers under IEEPA were cited as the statutory basis — including broad “reciprocal” tariffs imposed during declared national emergencies.

Because the statute cannot be used for that purpose, tariffs collected under those orders lack a valid legal foundation going forward. Lower trade courts are expected to address how this impacts refund claims for duties collected while the tariffs were in effect.

What This Means for Businesses

For companies involved in importing goods or planning supply chain strategies, the ruling:

  • Undermines the statutory basis for sweeping emergency tariffs previously justified under IEEPA.

  • Opens the door for legal challenges seeking refunds of tariffs collected under the now invalidated authority (to be handled by trade courts).

  • Clarifies that future broad tariff powers will likely require explicit congressional authorization, not emergency delegations.

Importantly, this decision does not impact other tariff authorities that have a clear statutory basis — such as tariffs imposed under the Trade Act of 1974 for unfair trade practices or Section 232 national security duties — unless those authorities are separately challenged on legal grounds.

The Supreme Court’s decision in Learning Resources, Inc. v. Trump reinforces that the President’s trade and tariff authority must be grounded in clear congressional authorization, not broad language in a statute originally designed for sanctions and emergency economic controls.

This ruling marks an important check on executive power over trade policy and may shape how future tariff measures are drafted and justified by the Administration and by Congress.

Guest User