WASHINGTON — U.S. Trade Representative Jamieson Greer said Wednesday the United States can replace roughly $200 billion in annual tariff revenue if the Supreme Court strikes down President Donald Trump’s emergency duties, raising the stakes in the Supreme Court tariffs showdown that could force the government to return money to importers. He offered that assurance as questions mounted about how — and whether — businesses will ever recoup the disputed payments, Dec. 10, 2025.
Greer said the Trump administration could lean on “other tools” targeting unfair trade practices to rebuild the revenue stream now flowing from tariffs imposed under the International Emergency Economic Powers Act, or IEEPA, if the law is ruled off-limits for broad duties. In remarks reported by Reuters, he called the roughly $200 billion in annual revenue from IEEPA tariffs “a lot of money” and “a big deal.” Still, he insisted, “I’m confident that with other tools we have… we can produce the revenues we need.”
Speaking at an Atlantic Council event, Greer declined to spell out the backup plan and refused to give businesses a timetable for potential refunds if the Supreme Court strikes down the tariffs. He said any repayment process would be run by the Treasury Department and U.S. Customs and Border Protection, describing a recent meeting with the CBP director but acknowledging he was “uncertain of the timeline,” leaving importers facing months of legal and financial limbo.
Supreme Court tariffs fight tests limits of emergency law.
The case at the center of the Supreme Court tariffs clash stems from Trump’s use of IEEPA this year to impose “Liberation Day” tariffs — baseline duties of 10 percent to 50 percent on imports from nearly every major trading partner, along with separate fentanyl-related tariffs on goods from Canada, Mexico, and China. A May decision by the Court of International Trade, detailed in a May ruling by the Court of International Trade, held that IEEPA’s grant of authority to “regulate” imports does not extend to open-ended revenue-raising tariffs, a conclusion later affirmed by the U.S. Court of Appeals for the Federal Circuit.
Justices heard arguments on Nov. 5 in consolidated challenges brought by small businesses and states that say Trump’s IEEPA duties usurp Congress’s exclusive power to tax and regulate foreign commerce. In sometimes skeptical questioning described in coverage by The Washington Post and in a detailed oral-argument recap from tax experts, several justices pressed the administration’s claim that the tariffs are purely “regulatory” even as they raise tens of billions of dollars from U.S. importers. They also probed whether a statute that never mentions “tariffs” or “taxes” can quietly hand the White House power to impose duties on any product from any country for any length of time.
Refund hopes rise, but the Supreme Court tariffs timeline is murky.
While Greer projected confidence about replacing the IEEPA funds if the Supreme Court tariffs are overturned, businesses are focused on getting back what they already paid. Companies have poured more than $200 billion into the Treasury this year under the disputed duties, according to estimates cited in both a Tax Policy Center study and trade-industry reporting. Analysts say $100 billion to $200 billion in potential refunds could be at stake depending on how narrowly or broadly the justices rule.
Many importers are not waiting for the Supreme Court’s tariff decision. Costco and other major brands have filed protective lawsuits and customs petitions to preserve their right to refunds if the levies are invalidated, according to a December report in Global Trade Magazine. Behind the scenes, specialist banks and investors are striking speculative deals to buy potential refund claims at a discount, a trend trade lawyers warn could trigger a “mess” of litigation if the Supreme Court orders money returned, but questions arise over who legally owns the right to collect.
Even if the Supreme Court tariffs are thrown out, importers should not expect automatic checks in the mail. Under existing customs rules, they would likely need to pursue refunds through post-summary corrections and formal protests for each affected entry — paperwork-intensive processes highlighted in an alert by law firm Holland & Knight. That raises the risk that smaller firms without in-house trade expertise could miss deadlines or lack the documentation needed to recover what they paid.
Can the U.S. really replace $200B if the Supreme Court strikes down the tariffs?
Greer’s assertion that the government can impose new levies if the Supreme Court’s tariffs collapse is already drawing scrutiny from budget and trade analysts. A recent Tax Policy Center analysis estimated that fully eliminating IEEPA tariffs, with no replacement, would cut household tax burdens by about $1.4 trillion over 10 years but would still leave overall U.S. tariffs at historically high levels because other Trump-era duties would remain. It also warned that alternative authorities, such as Section 122 of the Trade Act of 1974, cap tariffs at 15 percent and 150 days unless Congress extends them, limiting their ability to generate a long-term $200 billion-a-year haul.
Greer urged Congress to craft new, explicit tariff powers to fit Trump’s industrial-policy agenda, even as he insisted the administration has enough tools to keep pressure on trading partners if the Supreme Court tariffs are struck down. His message to markets was blunt: revenue from IEEPA may be in legal peril, but tariffs themselves are not going away. For importers and consumers, the unresolved question in this Supreme Court tariffs showdown is not whether they will pay — it is who gets their money back, how much, and how long they will have to wait to find out.
