The Supreme Court is set to issue rulings on 14 January that may determine the fate of President Donald Trump’s sweeping global tariffs, a closely watched case that could redefine the limits of presidential power and carry significant consequences for international trade and the global economy.
The US Supreme Court is expected to deliver its latest round of decisions on 14 January 2026 on the legality of President Donald Trump’s global tariff policy.
The court noted that its rulings may be announced when the justices convene for their scheduled session next Wednesday (14 January).
The tariffs case is widely seen as a significant test of presidential authority and of the court’s readiness to rein in executive power following Trump’s return to office in January 2025. The ruling could also have far-reaching consequences for international trade and the global economy.
During oral arguments in November, justices from both the conservative and liberal wings appeared sceptical of the administration’s legal justification for the tariffs, which were imposed under a 1977 law intended for use in national emergencies. Lower courts have already ruled that Trump exceeded his authority, and his administration is now appealing those decisions.
On 29 August 2025, a US appeals court ruled that most tariffs imposed by the Trump administration were unlawful, but permitted them to remain in force until 14 October to allow time for an appeal to the Supreme Court.
Trump has defended the tariffs, arguing they have strengthened the US economy, and has warned that striking them down would seriously harm the country. He invoked the International Emergency Economic Powers Act to impose “reciprocal” tariffs on imports from nearly all major trading partners, citing US trade deficits as a national emergency. The same law was used to justify tariffs on China, Canada, and Mexico, linked to concerns over fentanyl and other illegal drug trafficking.
The cases were brought by businesses directly affected by the tariffs and by 12 US states, most led by Democratic governors.
Earlier last year, the US Supreme Court was reviewing the legality of President Trump’s sweeping tariffs, with justices across the ideological spectrum questioning whether he exceeded presidential authority, a case that could have major implications for congressional powers and the global economy.
