In a move that could significantly reshape international trade dynamics, US Treasury Secretary Scott Bessent has indicated that the Biden administration is likely to implement a 15% global tariff this week. This announcement comes in the wake of mixed messages from President Donald Trump regarding tariff rates and follows a recent Supreme Court ruling that struck down the previous blanket import taxes.
Tariff Confusion and Legal Maneuvers
The proposed new tariff aims to replace the sweeping global import taxes that were initially enacted last year under the Trump administration but later invalidated by the Supreme Court. In response to the court’s decision, the White House imposed a temporary levy at 10%, despite Trump’s assertion on social media that it would be set at 15%. This inconsistency has led to considerable confusion among global businesses and diplomatic circles, prompting calls for clarity from various stakeholders.
White House officials have stated that they are currently finalising the necessary documentation to align the tariffs with Trump’s stated intentions. They have downplayed the importance of the court’s ruling, asserting that alternative legal channels will be utilised to reinstate the tariff policies aimed at rebalancing trade, bolstering domestic manufacturing, and addressing US national debt.
To impose the 10% tariff, the administration invoked an obscure trade authority known as Section 122. This allows the president to declare tariffs of up to 15% without needing congressional approval for a limited period of 150 days, provided specific conditions are met. Bessent expressed confidence that the tariff rates would revert to their previous levels within five months, emphasising that he does not foresee the Supreme Court ruling impacting future tariff revenues.
Financial Implications and Refunds
The current administration is grappling with claims from companies that previously paid tariffs now deemed illegal by the Supreme Court. Experts warn that the government could face liabilities of up to $130 billion (£97.2 billion) in refunds. Research from the Cato Institute further suggests that taxpayers might incur daily interest costs of approximately $23 million for every day refunds are delayed, potentially accumulating to around $700 million per month.

The Evolution of US Tariff Policy
The future of US import tax policies remains uncertain. In April, Trump announced a series of “Liberation Day” tariffs affecting numerous countries, with rates starting at 10% and escalating to as high as 50% for certain goods. This initiative sparked a wave of trade negotiations as countries sought to secure lower rates in exchange for commitments to invest and implement reforms. However, the Supreme Court’s ruling invalidated these tariffs, alongside others previously announced for goods from Mexico, Canada, and China, citing the use of emergency powers.
In the wake of these developments, Trump declared a 10% global tariff, which he later claimed would increase to 15%. Ultimately, the tariff was enacted at the lower rate, leading to a uniform tariff structure across all countries, raising questions about the status of trade agreements previously negotiated with allies, including the UK.
Targeted Tariffs on Specific Sectors
Looking ahead, the administration plans to leverage additional legal frameworks, specifically Sections 301 and 232, to implement tariffs after the initial 150-day period concludes. These provisions typically allow for targeted levies against specific nations or industries, enabling the US to impose tariffs in response to unfair trade practices or national security concerns.

Trump has previously employed these measures to introduce tariffs on imports such as steel, aluminium, and automobiles. He has also considered applying them in disputes regarding digital taxes and pharmaceuticals. However, these tools require the administration to adhere to specific procedures, including conducting investigations and allowing businesses to provide feedback, which many firms believe offers a more structured approach compared to the abrupt announcements seen under Trump’s tenure.
Why it Matters
The potential increase in tariffs signals a crucial turning point in the US’s trade strategy, which could have far-reaching effects on global markets and domestic industries. As the government navigates these changes amidst legal challenges and economic pressures, the implications for international relations and domestic manufacturing capabilities are substantial. Stakeholders, from multinational corporations to local manufacturers, will need to remain vigilant as the landscape continues to evolve, adjusting their strategies to stay competitive in an increasingly complex global market.