• The White House has confirmed its commitment to a 15% tariff rate under Section 122 of the Trade Act of 1974, though the exact timing of the increase from an initially announced 10% remains ambiguous.
  • The tariffs took effect on February 24, 2026, and are set to last for 150 days, unless extended by Congress, creating significant uncertainty for U.S. businesses amid potential legal challenges.
  • Legal experts warn that the unprecedented use of Section 122, which requires addressing "large and serious United States balance-of-payments deficits," may be vulnerable in court, with the administration likely using this period to build more durable tariff frameworks.

In a move that has sent ripples through global markets, the White House has reaffirmed its stance on implementing a 15% tariff rate under Section 122, a statute never before invoked by any president. According to people familiar with the matter, the administration remains steadfast, but the specifics of when the rate was raised from the initial 10% announcement remain murky. This development follows President Trump's announcement of a 10% global tariff late Friday, which was then increased to the statutory maximum of 15% on Saturday, taking effect on February 24, 2026.

The tariffs are scheduled to remain in place for 150 days, until July 24, 2026, unless Congress votes to extend them—a prospect fraught with political uncertainty. International trade economist Asha Sundaram from Northeastern University emphasized the broader impact, noting, "It's more harmful than having higher tariffs, because businesses don't want to invest when they're not sure what is going to happen." This sentiment echoes across industries, as companies grapple with the new average effective U.S. tariff rate of 14.5%, which includes exemptions for goods from Canada and Mexico under the USMCA, as well as pharmaceuticals, electronics, and certain agricultural products.

Legal challenges are expected to mount quickly, with Dave Townsend, an international trade attorney at Dorsey & Whitney, predicting "a fresh wave of litigation contesting Section 122 and again seeking reimbursements for duties collected under it." The statute's narrow justification—addressing balance-of-payments deficits rather than the trade deficits cited by the administration—poses a critical vulnerability. An assistant general, Brett Shumate, previously dismissed Section 122 as a viable tool, highlighting that trade deficits "are fundamentally different from balance-of-payments deficits" and that the statute has "no clear applicability." Efforts to reach the Department of Justice for further comment were unsuccessful.

Behind the scenes, the administration appears to be using this five-month window as a strategic fallback. Sources indicate that if courts strike down the Section 122 tariffs before the 150-day period ends, the policy might simply expire, giving the White House time to pivot to more established legal frameworks like Sections 232 or 301. This approach reflects a broader testing of executive authority, with the Supreme Court's recent constraints on presidential tariff powers under IEEPA adding pressure. As negotiations continue, market watchers are bracing for volatility, with real-time data showing slight dips in trade-sensitive sectors.

In a brief statement, a White House official reiterated that there is "no change of heart" on the plan, though the timing of the rate adjustment remains unclear. The human element here is palpable—business leaders are scrambling to adjust supply chains, while legal teams prepare for what could be a protracted battle. As one industry insider put it, "Without a deal, companies face heightened costs and operational disruptions." The coming months will likely see a blend of courtroom drama and policy evolution, with the administration's efforts to restructure its trade strategy hitting both snags and opportunities.

Correction: An earlier version misstated the effective date; it has been updated to February 24, 2026.