Importers Prepare for $150 Billion Tariff Refund Battle if Trump Loses at Supreme Court

Washington | EcoPulse24

Executives, customs brokers, and trade attorneys across the U.S. are bracing for a Supreme Court ruling on the legality of sweeping tariffs imposed by former President Donald Trump. The outcome could spark a battle for refunds totaling up to $150 billion already paid by importers to the U.S. government.

Imminent Supreme Court Decision

The Supreme Court is expected to issue rulings on Friday, January 9, 2026, though it has not specified which cases will be addressed. Expectations have grown that the Court may overturn tariffs imposed by Trump under the International Emergency Economic Powers Act of 1977 (IEEPA), as both conservative and liberal justices expressed doubts during November hearings about whether the law grants such authority.

Tariff Collections

Tariffs linked to the IEEPA generated $133.5 billion in revenue between February 4 and December 14, 2025, according to the latest data from U.S. Customs and Border Protection. The current total is estimated at nearly $150 billion, based on average daily collections from late September to mid-December, according to Reuters calculations.

Refund Complexities

Even if the Supreme Court overturns the tariffs, companies anticipate that Trump would not make refunds easy. Importers face a 314-day window to amend their entries before final settlement - after which refunds are barred. This deadline has already passed for Chinese imports subjected to tariffs in February 2025.

Precautionary Legal Actions

Some firms, including Costco, have filed precautionary lawsuits against Customs and Border Protection to preserve their rights to possible refunds. Costco noted in a legal memo that importers who paid duties under IEEPA are "not guaranteed recovery of unlawfully collected duties" without judicial relief.

Recent Developments

On January 2, Customs and Border Protection announced all tariff refunds will transition to electronic disbursement starting February 6, 2026. Angela Lewis, Global Head of Customs at logistics firm Flexport, sees this as a sign that "customs is fully prepared to proceed with refunds should the Supreme Court rule that way."

U.S. Administration's Stance

Treasury Secretary Scott Besant expressed confidence that the Supreme Court will uphold Trump's actions. U.S. Trade Representative Jamieson Greer stated that Treasury and Customs would need to resolve refund rights, and expressed confidence that any lost revenue could be offset by new tariffs imposed under other legal authorities.

Legal Context

Trump is the first U.S. president to use the IEEPA to impose tariffs; the law has historically been used to sanction U.S. adversaries or freeze their assets. Trump imposed IEEPA-related tariffs in two ways: In April 2025, he announced "reciprocal" tariffs on most U.S. trading partners based on a national emergency over the U.S. trade deficit. In February and March 2025, he levied tariffs on China, Canada, and Mexico, citing the trafficking of fentanyl and other illicit drugs as a national emergency.

Source: Reuters - January 8, 2026