On February 22, 2026, President Donald Trump announced via Truth Social that he was raising his newly imposed global tariff from 10% to 15% “effective immediately,” less than 24 hours after first unveiling the 10% blanket rate on all foreign trading partners. The move came as a rapid escalation following the U.S. Supreme Court’s 6-3 ruling on February 20 that struck down Trump’s previous tariff regime under the International Emergency Economic Powers Act (IEEPA), finding that the president lacked legal authority to use that statute for sweeping trade levies. Rather than accept the legal defeat, Trump pivoted to a different legal justification — Section 122 of the Trade Act of 1974 — and pushed tariffs even higher than the rate the court had just invalidated.
But the announcement carried an immediate credibility problem. When the tariff actually took effect on February 25, 2026, it started at 10%, not the 15% Trump had declared. The gap between the president’s social media proclamation and the actual implementation raised serious questions about whether “effective immediately” means anything concrete when it comes from a Truth Social post rather than a formal executive order. This article breaks down the legal authority Trump is relying on, the exemptions that apply, how trading partners are responding, and the 150-day clock that could force a congressional showdown over trade policy.
Table of Contents
- Did Trump Actually Raise the Global Tariff to 15% “Effective Immediately”?
- What Legal Authority Is Trump Using After the Supreme Court Struck Down His Tariffs?
- Which Goods Are Exempt From the 15% Global Tariff?
- How Are the EU and UK Responding to Trump’s Tariff Escalation?
- The 150-Day Clock and the Congressional Showdown Ahead
- What Will These Tariffs Cost American Consumers and Businesses?
- What Comes Next for Trump’s Trade Policy?
- Conclusion
- Frequently Asked Questions
Did Trump Actually Raise the Global Tariff to 15% “Effective Immediately”?
The short answer is: not when he said he did. trump posted his announcement on Truth Social over the weekend of February 21-22, declaring the 15% rate “effective immediately.” But government agencies do not operate on Truth Social timelines. When the tariff officially kicked in on Tuesday, February 25, importers faced a 10% surcharge — not 15%. The discrepancy underscored a pattern that has defined this administration’s trade policy: bold public declarations that outpace the actual regulatory machinery. Treasury Secretary Scott Bessent later attempted to clean up the confusion. On March 4, 2026, Bessent told reporters that the 15% rate would begin “this week,” roughly ten days after Trump had claimed it was already in effect.
Bessent also offered a notable prediction: that tariffs would return to prior levels within five months. That timeline is significant because Section 122 of the Trade Act of 1974 — the legal authority Trump is now using — caps temporary import surcharges at 150 days, or roughly five months. Whether Bessent was telegraphing a legal constraint as a policy choice, or simply acknowledging the statutory ceiling, remains an open question. For businesses trying to plan around these tariffs, the gap between announcement and implementation is not a minor inconvenience. Importers who scrambled to adjust pricing, reroute shipments, or stockpile inventory based on the “effective immediately” declaration found themselves operating on false information. The lesson for anyone tracking this administration’s trade moves: watch what Customs and Border Protection actually enforces, not what appears on Truth Social.
What Legal Authority Is Trump Using After the Supreme Court Struck Down His Tariffs?
Trump’s new tariff regime rests on Section 122 of the Trade Act of 1974, a relatively obscure provision that allows the president to impose a “temporary import surcharge” of up to 15% if he finds “large and serious United States balance-of-payments deficits.” This is a fundamentally different legal foundation than the IEEPA, which the supreme Court rejected in its February 20 ruling. The Trade Act authority is narrower in scope, capped in rate, and limited in duration — all constraints that IEEPA did not impose. However, Section 122 comes with significant limitations that will shape how this tariff plays out. The 15% rate is not a floor or a starting point — it is the statutory maximum. Trump cannot go higher without congressional action.
The tariffs can last for a maximum of 150 days before they automatically expire unless Congress votes to extend them. And the legal predicate — “large and serious” balance-of-payments deficits — is a specific economic finding, not a general declaration of emergency. Legal scholars at the Peterson Institute for International Economics (PIIE) have already raised questions about whether this justification will survive judicial scrutiny, given that the United States runs a capital account surplus and the balance-of-payments framing is contestable. If courts challenge the balance-of-payments finding, the entire tariff structure could collapse the same way the IEEPA tariffs did. The administration is effectively betting that the 150-day window is short enough that litigation will not move fast enough to block the tariffs before they expire on their own. That is a calculated gamble, not a durable trade policy.
Which Goods Are Exempt From the 15% Global Tariff?
Not everything crossing the border faces the new surcharge. Goods covered under the U.S.-Mexico-Canada Agreement (USMCA) are exempt, which means a significant volume of North American trade continues under existing terms. This is a practical necessity — dismantling USMCA would require formal withdrawal from the agreement and would face its own legal and political obstacles. Beyond the USMCA carveout, the administration has exempted specific product categories regardless of their country of origin: pharmaceuticals, critical minerals, and certain food imports including beef, tomatoes, and oranges. The pharmaceutical exemption likely reflects the political reality that taxing imported medications — many of which have no domestic manufacturing alternative — would produce immediate, visible price increases for consumers and trigger backlash from both parties.
The critical minerals exemption acknowledges that the United States depends on foreign sources for materials essential to defense and technology manufacturing; taxing them would undermine the administration’s own reshoring goals. The food exemptions appear targeted at avoiding grocery price spikes on staple items that voters notice immediately. These exemptions are worth watching closely. In previous tariff rounds, exemption lists have expanded and contracted based on industry lobbying, political pressure, and retaliatory threats from trading partners. What is exempt today may not be exempt next month, and businesses relying on these carveouts should not treat them as permanent.
How Are the EU and UK Responding to Trump’s Tariff Escalation?
The international reaction has been sharp, particularly from two of America’s closest trading partners. Both the European Union and the United Kingdom warned that existing trade agreements with the United States are at risk as a direct consequence of the 15% tariff. These are not idle threats — they represent a potential unraveling of trade relationships that took years to negotiate. The UK reaction was especially pointed. British officials believed they had negotiated a favorable arrangement at the initial 10% rate, viewing it as a manageable cost of maintaining the transatlantic trade relationship.
The sudden escalation to 15% less than 24 hours later was perceived as a betrayal of that understanding. Fortune characterized the move as “something of an eff you” to the UK and Prime Minister Keir Starmer’s government, which had invested significant political capital in maintaining a cooperative posture toward Washington. The episode illustrates a core problem with negotiating trade terms with an administration that changes rates via social media posts over a weekend: any deal you think you have can evaporate before the ink dries. The EU response has been more measured in tone but potentially more consequential in substance. The European Commission has a well-established playbook for retaliatory tariffs, having deployed targeted countermeasures during Trump’s first term against American bourbon, motorcycles, and agricultural products — goods chosen specifically to inflict political pain in key congressional districts. If the EU activates that playbook again, American exporters will bear the cost of the administration’s import surcharges.
The 150-Day Clock and the Congressional Showdown Ahead
The most important number in this entire tariff saga may not be 10% or 15% — it may be 150. That is the maximum number of days that Section 122 tariffs can remain in effect without congressional authorization. Starting from the February 25 effective date, the clock runs out sometime around late July 2026. After that, the tariffs vanish unless Congress votes to extend them. This creates a political dynamic unlike anything in Trump’s first-term trade wars. Under IEEPA, there was no expiration date — the president could maintain tariffs indefinitely as long as the emergency declaration stood.
Under Section 122, Congress holds the ultimate leverage. That means the tariff debate will collide with midterm election politics, appropriations fights, and whatever other legislative priorities are competing for floor time. Republican leaders will face pressure from both the administration (to extend the tariffs) and from business constituencies in their districts (to let them expire). There is also a legal vulnerability embedded in the timeline. Treasury Secretary Bessent’s prediction that tariffs would “return to prior levels within five months” could be read as an acknowledgment that the administration does not expect — or perhaps does not want — Congress to extend them. If that is the case, the 15% tariff is less a trade policy than a negotiating tactic with a built-in expiration date. Trading partners who understand this may simply wait out the clock rather than make concessions.
What Will These Tariffs Cost American Consumers and Businesses?
The Committee for a Responsible Federal Budget (CRFB) has analyzed the revenue implications of the new 10-15% tariff regime. While the specific dollar figures depend on which rate is in effect and how long it lasts, the underlying economics are straightforward: tariffs are paid by American importers, who pass those costs downstream to businesses and consumers. A 15% surcharge on the vast majority of imported goods — even with the pharmaceutical, critical mineral, and food exemptions — represents a meaningful increase in costs across supply chains that were already strained by previous rounds of trade disruption.
For consumers, the impact will vary by product category. Electronics, clothing, automotive parts, and household goods that rely on imported components or finished products will see price increases. For businesses that import raw materials or intermediate goods for domestic manufacturing, the tariff functions as a tax on production — exactly the opposite of the reshoring incentive the administration claims to be pursuing. A domestic manufacturer who imports steel or electronic components now faces higher input costs, making their finished products less competitive both at home and abroad.
What Comes Next for Trump’s Trade Policy?
The next few months will test whether the 15% tariff is a durable policy shift or a temporary pressure tactic. The legal challenges are already forming. The PIIE has flagged the balance-of-payments justification as potentially vulnerable, and plaintiffs who successfully challenged the IEEPA tariffs will be watching for similar openings under Section 122. If courts issue injunctions, the administration could find itself zero-for-two on tariff authority.
The more consequential question is what happens at the 150-day mark. If Congress declines to extend the tariffs, the administration will have burned significant diplomatic capital with allies like the UK and EU for a policy that lasted less than half a year. If Congress does extend them — or if Trump attempts another legal pivot to a different statutory authority — the cycle of announcement, litigation, and uncertainty will continue. For businesses, investors, and trading partners, the only reliable prediction is that unpredictability itself is the policy.
Conclusion
Trump’s 15% global tariff represents the latest chapter in an increasingly chaotic trade policy defined by legal setbacks, rapid escalations, and gaps between presidential announcements and actual implementation. The shift from IEEPA to Section 122 of the Trade Act of 1974 gives the tariffs a narrower legal foundation, a lower ceiling, and a hard expiration date — constraints that fundamentally change the strategic calculus for everyone involved.
The key facts to track going forward are the 150-day statutory limit, the legal challenges to the balance-of-payments justification, the retaliatory measures from the EU and UK, and the actual rate being enforced versus the rate being announced. For consumers and businesses, the practical advice is the same as it has been throughout this administration’s trade wars: plan for volatility, do not rely on social media announcements as policy, and watch what Customs and Border Protection actually does at the port of entry.
Frequently Asked Questions
Is the global tariff currently 10% or 15%?
When the tariff took effect on February 25, 2026, it started at 10%, despite Trump’s announcement of 15%. Treasury Secretary Scott Bessent said on March 4 that the 15% rate would begin “this week.” The operative rate depends on when you are reading this — check current Customs and Border Protection schedules for the enforced rate.
Are goods from Canada and Mexico subject to the 15% tariff?
No. Goods covered under the U.S.-Mexico-Canada Agreement (USMCA) are exempt from the new tariff.
What products are exempt from the tariff regardless of origin country?
Pharmaceuticals, critical minerals, and certain food imports — specifically beef, tomatoes, and oranges — are exempt regardless of which country they come from.
How long can these tariffs last without congressional approval?
Under Section 122 of the Trade Act of 1974, the tariffs can last a maximum of 150 days. After that, Congress must vote to extend them or they automatically expire. From the February 25 effective date, that puts the expiration around late July 2026.
Can Trump raise the tariff above 15%?
Not under Section 122, which caps temporary import surcharges at 15%. To go higher, he would need to invoke a different legal authority — and the Supreme Court already struck down his use of IEEPA for that purpose.
What was the Supreme Court ruling that preceded this tariff?
On February 20, 2026, the Supreme Court ruled 6-3 that Trump did not have the legal authority to use the International Emergency Economic Powers Act (IEEPA) to impose sweeping tariffs. Trump announced the new tariffs under a different legal authority the following day.