U.S. Supreme Court Strikes Down Trump Reciprocal Tariffs While Auto Duties Remain Japan Braces for Policy Shifts

In a stunning turn just yesterday, the U.S. Supreme Court ruled that President Donald Trump's reciprocal tariffs, imposed under the International Emergency Economic Powers Act or IEEPA, are unconstitutional, striking a blow to his trade agenda. Nippon.com reports that these 15 percent tariffs targeted a wide range of Japanese goods, but the decision doesn't touch sector-specific duties like the critical 25 percent Section 232 tariffs on automobiles and parts, which hit Japan's auto industry hard and remain in effect with modified rates for Japan starting September 16, 2025, according to the Trade Compliance Resource Hub. Despite the ruling, Japan stands firm on its massive $550 billion investment and loan pledge to the U.S., forged in tough bilateral negotiations, as confirmed by both Jiji Press via Nippon.com and The Japan Times. Tokyo is closely watching for policy whiplash, urging Washington to shield Japanese firms, and vows to tread carefully to preserve the deal. Some Japanese companies have even sued for tariff refunds. Trump wasted no time fighting back. Hours after the February 20 decision, he slapped a 10 percent global tariff on foreign goods using Section 122 of the Trade Act of 1974—a temporary 150-day measure exempting USMCA goods, critical minerals, energy, and more. Then, in a fiery social media post Saturday, he hiked it to 15 percent effective immediately, raging against countries "ripping off" the U.S., per The Japan Times. The Budget Lab at Yale pegs the current average effective U.S. tariff rate at 13.7 percent post-ruling and boost—the highest since 1936 before the drop—potentially jacking consumer prices by 0.6 percent short-term and risking 0.3 percentage point unemployment spikes if extended. For Japan, the Supreme Court blow has limited direct fallout on upcoming Trump-Takaichi talks, says Japan Today, but uncertainties loom as Trump pivots to legally tested tools. Auto tariffs persist at 25 percent, while reciprocal ones crumble—yet Tokyo's investment commitment holds steady amid the chaos. Listeners, thanks for tuning into Japan Tariff News and Tracker. Subscribe for the latest updates. This has been a Quiet Please production, for more check out quietplease.ai. For more check out https://www.quietperiodplease.com/ Avoid ths tariff fee's and check out these deals https://amzn.to/4iaM94Q This content was created in partnership and with the help of Artificial Intelligence AI.