The refund process will likely prove lengthy and contentious. Trade lawyers estimate refunds could take 12 to 18 months to distribute, though the government could complicate the process. Companies are already lining up with lawsuits, state officials are demanding reimbursement, and the Court’s own dissenters warned that years of litigation could follow.

The Supreme Court on Friday struck down President Donald Trump’s emergency tariffs in a 6-3 decision that invalidated $133 billion in import taxes already collected. But the justices left the government and importers facing a far more complicated challenge: determining how to return the money now deemed unlawfully taken.

The Court ruled that Trump’s invocation of the International Emergency Economic Powers Act of 1977 (IEEPA) did not authorize the tariffs. The law grants no authority to tax imports, the justices said — that power belongs to Congress. Two justices appointed by Trump, including Justice Amy Coney Barrett, joined the majority.

The Refund Challenge

The Supreme Court’s decision left the government and importers facing a process far more complicated than the legal victory itself. With no blueprint for handling refunds of this scale, the path forward remains unclear.

“It’s going to be a bumpy ride for awhile,” said Joyce Adetutu, a trade lawyer at the Vinson & Elkins law firm. “The amount of money is substantial. The courts are going to have a hard time. Importers are going to have a hard time.”

The refund process will likely involve the U.S. Customs and Border Protection agency, the Court of International Trade in New York, and other lower courts. The U.S. Customs agency has an existing process for refunding duties when importers claim an error, but officials have never managed refunds on this scale—thousands of importers and $133 billion at once.

Trade lawyer Dave Townsend of Dorsey & Whitney suggested the government might streamline the process through a special website where importers could claim refunds. But the government could also shift responsibility onto importers, forcing them to pursue claims through the courts.

“The government is well-positioned to make this as difficult as possible for importers,” Adetutu warned. “I can see a world where they push as much responsibility as possible onto the importer.”

Trade lawyer Alexis Early of Bryan Cave Leighton Paisner said the government has no legal justification for withholding unlawfully collected fees. “Just because the process is difficult to administer doesn’t mean the government has the right to hold on to fees that were collected unlawfully,” Early said.

Companies and States Demand Recompense

Major retailers and food producers have already filed lawsuits seeking to be first in line for refunds. Costco, Revlon, and canned seafood and chicken producer Bumble Bee Foods filed suits before the Supreme Court’s ruling, positioning themselves ahead of other claimants.

Trade lawyer Ryan Majerus of King & Spalding, a former U.S. trade official, said the government’s approach remains unpredictable. Whether officials will streamline the process or shift costs to importers is unclear.

That uncertainty opens the door to further litigation. Manufacturers may sue for their own shares of refunds—seeking compensation from suppliers who raised prices to cover the tariffs. “We may see years of ongoing litigation in multiple jurisdictions,” Early said.

TD Securities estimates the process could stretch 12 to 18 months.

Governor J.B. Pritzker of Illinois, a Democrat and Trump opponent, is demanding repayment on behalf of his state’s residents. In a letter released by his campaign, Pritzker asserted that the tariffs cost each Illinois household $1,700, totaling $8.7 billion. He warned that failure to pay would prompt “further action.”

Nevada Treasurer Zach Conine submitted a $2.1 billion payment request to the federal government. “As Nevada’s chief investment officer, I have a responsibility to try to recoup every single dollar that the Trump Administration takes from Nevada families,” Conine said.

Consumers who paid higher prices due to the tariffs are unlikely to recover their costs directly. The price increases companies passed along would be too difficult for individual households to attribute to a specific tariff.

Trump’s Response and the Dissent

President Trump told reporters Friday that the case will be litigated for years. “I guess it has to get litigated for the next two years,” he said. “We’ll end up being in court for the next five years.”

Trump said he was “absolutely ashamed” of some justices who ruled against his tariffs. Two of the three justices he appointed to the Court, including Justice Amy Coney Barrett, voted with the majority.

Justice Brett Kavanaugh dissented, criticizing the majority for sidestepping the refund question. “The Court says nothing today about whether, and if so how, the Government should go about returning the billions of dollars that it has collected from importers,” he wrote.

Kavanaugh echoed remarks Justice Barrett made during the case’s oral argument, noting that “the refund process is likely to be a ‘mess.’”

Economic Outlook

Ending the IEEPA tariffs could ease inflationary pressures and potentially spur consumer spending if refunds are distributed. But the economic impacts are expected to remain modest.

Most countries still face significant U.S. tariffs on specific sectors. Trump has indicated he plans to impose new tariffs using different authorities. And the refunds, once issued, will arrive gradually—12 to 18 months or more—limiting any immediate stimulus effect.

The government has little precedent for managing refunds of this scale. In the 1990s, courts struck down a harbor maintenance fee on exports and established a refund system for affected companies. But nothing approaching the current situation—tens of billions of dollars and thousands of claimants.