The Trump administration on Monday launched an online portal where companies can submit claims for refunds of payments on tariffs nullified by the Supreme Court.
U.S. Customs and Border Protection said the portal went live at 8 a.m.
The portal is part of a complicated process to make importers whole after the justices in February said President Trump overstepped his authority by invoking the International Emergency Economic Powers Act to impose nation-by-nation tariffs last year.
The agency estimates that more than 330,000 importers have made payments under IEEPA and that refunds would total around $166 billion.
During a legal fight over refunds, the agency pledged to create a Consolidated Administration and Processing of Entries (CAPE) tool within a system known as the Automated Commercial Environment (ACE).
The new portal allows the government to consolidate refund requests, with interest, instead of trying to process claims one by one for every tariff payment.
The CBP said Monday in a statement that the system is designed “to efficiently process refunds, pursuant to court order, for importers and brokers who paid IEEPA duties.”
U.S. Customs officials said refunds should be processed within 60 to 90 days of an accepted CAPE declaration, unless there is a compliance problem that requires additional review.
Thousands of businesses may submit claims. Large companies that sued for refunds included Costco, Bumble Bee Foods, FedEx and others.
Tariffs are duties on goods brought into U.S. markets. The importer of record, often a U.S. entity, must pay the money to customs officials.
Mr. Trump imposed an assortment of tariffs in 2025, but the IEEPA levies were the linchpin of his plans. He wielded them against individual nations, allowing him to gain leverage in matters of trade, war and peace or other policy matters.
The Supreme Court struck the IEEAP tariffs down, saying Mr. Trump usurped taxing powers that belong to Congress.
Congressional Democrats urged Mr. Trump to swiftly refund the tariff money. At the same time, they said businesses that raised prices because of the IEEPA tariffs should pass the refunds to consumers.
While CBP tries to process refunds, Mr. Trump is rebuilding his tariff framework under alternate authorities.
He imposed a new 10% global tariff under Section 122 of the Trade Act of 1974. He is working to raise that rate to 15%.
The president is also leaning into trade provisions that allow the president to impose tariffs on national security grounds, or to punish nations for unfair trade practices such as the over-subsidization of industries or the use of forced labor.
Even before the high court weighed in, Mr. Trump had been leaning into Section 232 tariffs to rebuild manufacturing in key sectors, including steel, aluminum, copper, lumber, automobiles and trucks.
