Treasury Secretary Scott Bessent told the Supreme Court that the United States could be forced to refund between $750 billion and $1 trillion if the justices find President Donald Trump’s sweeping tariffs unlawful, a prospect that would amount to an unprecedented repayment of trade revenue.
Bessent’s warning, contained in a court filing and repeated on NBC’s Meet the Press, comes after two lower courts held that the administration exceeded its authority in imposing a broad set of tariffs announced in April — a move the government is asking the Supreme Court to review quickly to avoid collecting more revenue that might later have to be returned.
The estimate of up to $1 trillion encompasses roughly $72 billion the Treasury says U.S. Customs and Border Protection had collected through Aug. 24 and projects additional receipts through next June. The Treasury said $30 billion was collected in July alone, a 242% increase compared with the same month a year earlier.
In its petition to the Supreme Court, Solicitor General D. John Sauer framed the stakes in stark terms, saying the tariffs pose an enormous choice for the nation’s leaders. “The stakes in this case could not be higher,” Sauer wrote, adding that the president and his advisers view the tariffs as essential to national economic strength.
Bessent told NBC he is "confident" the Supreme Court will uphold the administration’s actions but acknowledged that, if the justices order refunds, the government would be required to comply and pay back whatever sums are mandated. The timing of a Supreme Court decision is unknown.
Lower-court rulings that found the tariff proclamation exceeded presidential authority have prompted urgent legal filings from the administration seeking an expedited review. The government argues that delaying Supreme Court action until next summer could compel it to return not only the receipts already collected but also additional revenue that would be gathered in the intervening months.
If the court ordered refunds, officials said the logistics would present a major operational challenge for Customs and other agencies. The workload could be compounded by a change earlier this year that ended a de minimis exemption that had allowed low-value packages to bypass customs processes and avoid some tariffs. That change already increased the volume of shipments subject to scrutiny and collection.
Trade lawyers and customs specialists have urged importers to preserve detailed records of tariff payments and other trade documentation in case they must seek refunds. Some companies and law firms are preparing to file claims, and a small market has emerged in which third-party firms offer to buy importers’ legal claims to potential refunds.
The administration pointed to prior instances in which the U.S. government has returned tariff revenue, including refunds of some duties on Chinese goods under the Biden administration, but said those earlier repayments were far smaller than the amount at issue in the current litigation.
Tariff calculations in the Trump proclamation have grown more complex over time, officials and trade experts say, in some cases layering multiple taxes on the same products or computing levies based on the precise content of goods such as steel, aluminum or copper. That complexity could make any retroactive refund process more difficult, both in identifying who paid and in calculating the amounts owed.
It also remains unclear how the government would implement large-scale refunds if the Supreme Court orders them. Treasury’s filing and public comments stress the potential disruption of unwinding the tariff program while continuing to argue that the measures are lawful and should be upheld.
For now, the immediate practical guidance from trade advisers to affected companies is to keep meticulous payment records, review invoices and tariff classifications, and consider legal options for recovering duties if the courts ultimately find the measures unlawful.