Supreme Court Rules Trump Tariffs Illegal, Stocks Up
Get the Finance newsletter
Daily finance — markets, central banks, M&A, the prints that move money. Free.
- Supreme Court ruled 6‑3 that Trump's tariff policy imposed under the International Emergency Economic Powers Act was illegal, holding that tariffs are a form of taxation reserved for Congress.
- Administration expressed disappointment but swiftly imposed new baseline tariffs of 10 %—later raised to 15 %—using authority granted by Section 122 of the Trade Act.
- Treasury Secretary Scott Bessent announced that the administration will launch investigations under Section 232 and Section 301 to expand tariff coverage as alternative legal tools.
- US markets closed higher, with precious metals up, the dollar index down, and equity futures pointing lower, while Asian indices such as the Hang Seng and KOSPI showed gains.
- Importers may pursue refunds on an estimated $160‑175 bn of tariffs collected under the invalid IEEPA authority, potentially affecting the federal fiscal position and the dollar index.
Why it matters: The ruling erases a $160‑175 bn revenue stream for the Treasury, jeopardizing the federal budget, while importers stand to recover those costs and markets reward the news with higher equity prices, shifting the fiscal burden from taxpayers to the government’s balance sheet.
