Trump Tariffs Overturned by Supreme Court: US Trade Policy Enters New Chaos in 2026
In February 2026, the US Supreme Court ruled 6-3 in Learning Resources Inc. v. Trump and V.O.S. Selections v. United States that the International Emergency Economic Powers Act (IEEPA) “does not authorize the President to impose tariffs.” This ruling directly overturned tariffs imposed by the Trump administration in 2025 on trading partners including China, Canada, Mexico, and the EU under IEEPA authority. In response, President Trump signed an executive order imposing a 10% tariff on all countries under Section 122 of the Trade Expansion Act of 1962, effective February 24, 2026, expected to last 150 days.
According to the Tax Foundation, with IEEPA tariffs overturned, remaining Section 232 tariffs will bring the 2026 US average effective tariff rate to 5.6%, the highest level since 1972. Including the 10% Section 122 tariff, this figure rises to 10.3%. The Tax Foundation estimates that Trump tariffs increased average US household tax burden by $1,000 in 2025; after IEEPA tariffs were overturned, remaining tariffs in 2026 will increase household burden by $400, with Section 122 tariffs adding another $200-600.
Tariffs Fail to Improve Trade Deficit: Basic Economic Laws Prevail
One of the Trump administration’s core objectives in imposing tariffs was to shrink the US trade deficit. However, data shows tariffs have not meaningfully altered the trade balance. The US trade deficit fell by only $2.1 billion in 2025, driven primarily by increased services trade surplus. The Tax Foundation notes that a country’s trade balance is not solely driven by trade policy, but reflects broader macroeconomic balances between saving and investment.
In the United States, domestic investment outpaces domestic saving, requiring capital inflow from the rest of the world to close the gap. This capital inflow represents net lending to the US from the rest of the world to finance business investment and government budget deficits. Since tariffs do not directly change the balance between domestic saving and investment, they cannot permanently change the trade balance. The US has run trade deficits every year since 1975; this decades-long phenomenon is not an imminent economic problem but reflects structural characteristics of the US as the world’s largest economy.
Economic Costs of Tariffs: Consumers and Businesses Bear Final Burden
Historical evidence and recent studies consistently show that tariffs are taxes that raise prices and reduce available quantities of goods and services for US businesses and consumers, resulting in lower income, reduced employment, and lower economic output. Tax Foundation research shows tariff costs are primarily borne by US importers and consumers, not foreign exporters. When the US imposes tariffs on imported goods, importers typically pass costs to downstream customers, ultimately paid by consumers as higher prices.
Additionally, tariffs generate indirect economic costs. Since tariffs mechanically reduce the bases of income and payroll taxes, net tax revenue the government receives from tariffs is less than direct collections. The Tax Foundation estimates Section 232 tariffs generated $36 billion in net tax revenue in 2025, but accounting for negative economic effects, revenue over the next decade will fall from $660 billion to $515 billion. More importantly, permanent Section 232 tariffs will reduce US GDP by 0.2% (before foreign retaliation).
Supply Chain Restructuring Accelerates: Companies Seek Tariff Avoidance Strategies
Facing continued tariff uncertainty, US companies are accelerating supply chain restructuring. Key strategies include:
- Production relocation: Moving production from China to low-tariff countries like Mexico, Vietnam, and India
- Nearshoring: Increasing procurement from neighboring countries like Mexico and Canada, reducing cross-border transportation costs and tariff risks
- Inventory pre-positioning: Increasing import inventories before tariffs take effect, buffering short-term impacts
- Price pass-through: Passing tariff costs partially or fully to consumers
However, supply chain restructuring is not easy. Establishing new supplier relationships, verifying product quality, and building logistics networks all require time and investment. For complex products (such as electronics and automotive parts), completely replacing Chinese supply chains is nearly impossible, as China possesses complete industrial ecosystems and scale advantages in these fields. Therefore, many companies adopt a “China+1” strategy, maintaining Chinese supply chains while gradually developing alternative sources.
New Phase in US-China Trade Relations: From Comprehensive Decoupling to Selective Decoupling
Although the Supreme Court overturned IEEPA tariffs, US-China trade relations have not returned to the past. Section 232 tariffs (based on national security grounds) remain in effect, continuing to impose tariffs on specific products (such as steel, aluminum, semiconductors, automobiles, etc.). Additionally, US non-tariff barriers against China, including technology export controls and investment restrictions, continue strengthening, forming a “selective decoupling” pattern.
China’s Ministry of Commerce stated that China is closely monitoring US policies and will decide “in due course” whether to adjust countermeasures to US tariffs. This statement indicates both sides recognize the destructiveness of full-scale trade war, preferring to resolve differences through negotiation rather than confrontation. However, in core areas such as key technologies, national security, and geopolitical competition, differences between the two sides are difficult to bridge, and US-China trade relations will long remain in a state of “competitive coexistence.”
Implications for Chinese Companies: Market Diversification and Supply Chain Resilience
US tariff policy uncertainty provides important lessons for Chinese companies. First, over-reliance on a single market (especially the US market) constitutes significant risk, and companies should accelerate market diversification, exploring emerging markets in Europe, Southeast Asia, Latin America, and Africa. Second, supply chain resilience is crucial; companies should build multi-regional, multi-supplier supply chain networks to reduce single-source risks. Third, compliance capabilities have become core competencies; companies need to establish professional trade compliance teams to handle increasingly complex international trade rules.
For Chinese enterprises going global, the US market remains an important target, but requires more cautious and flexible strategies. This includes: establishing localized operations teams in the US to better understand and serve American customers; investing in brand building and product differentiation to improve price pass-through capabilities; actively exploring new models like cross-border e-commerce to reduce tariff impacts of traditional trade. Chinese companies that can adapt to the new trade environment will gain long-term advantages in global competition.
Source: taxfoundation.org
