Economy June 4, 2026 09:43 AM

Wolfe Research: Tariff Relief Has Quietly Helped U.S. Growth, But New Rules Could Reintroduce Headwinds

Strategist Tobin Marcus points to a marked drop in effective import tariffs and flags a likely policy shift that could raise rates for key trading partners in 2026

By Caleb Monroe

Wolfe Research strategist Tobin Marcus says the effective U.S. tariff burden on imports has eased sharply this year, providing an under-the-radar boost to growth alongside AI-driven capital spending and consumer tax cuts. Marcus cautions, however, that a recent administration proposal to restore permanent tariffs under Section 301 - including a rate floor and likely higher country-level tariffs - could create new, modest headwinds later in 2026.

Wolfe Research: Tariff Relief Has Quietly Helped U.S. Growth, But New Rules Could Reintroduce Headwinds

Key Points

  • U.S. effective tariff rate on all imports dropped from 10.9% in October to 6.8% in the most recent March data.
  • Wolfe Research views tariff easing as an underappreciated contributor to U.S. growth alongside AI-driven capital expenditure and consumer tax cuts from the One Big Beautiful Bill.
  • The administration has proposed restoring permanent tariffs under Section 301 with a rate floor, and Wolfe expects follow-on higher country-level rates for key trading partners; renewed headwinds are likely later in 2026 but expected to be modest.

Wolfe Research strategist Tobin Marcus redirected attention from overseas conflict to domestic trade policy in the first installment of a multi-part series aimed at answering investor questions about tariffs and trade dynamics.

Central to Marcus's note is the observation that the U.S. effective tariff rate on all imports has declined notably - from a high of 10.9% in October to 6.8% in the most recent March data. That reduction, he argues, has eased a material drag on the economy.

Marcus attributes the fall in the effective tariff rate to three primary influences: policy changes affecting China and India, mounting evidence of tariff evasion, and a Supreme Court ruling that undercut the administration's use of IEEPA tariffs. He writes that these developments have helped reduce the tariff headwind and that investors may not fully appreciate the extent of the change.

"Tariff easing has been a below-the-radar factor supporting US growth more broadly," Marcus wrote.

Wolfe Research frames the decline in tariffs as a complementary force supporting U.S. expansion along with two other elements called out in the note - AI-driven capital expenditure and consumer tax cuts from the One Big Beautiful Bill. Together, Wolfe sees these factors as contributing to a more supportive growth backdrop than is widely recognized.

Despite the recent easing, the note warns of an emerging policy shift. The administration has proposed restoring permanent tariffs under Section 301 and issued a rulemaking proposal to establish a rate floor. Wolfe anticipates that this step will be followed by adjustments that raise country-level tariffs for key trading partners.

Marcus expects the renewed tariff headwinds to appear later in 2026, but he characterizes them as modest in scale. "It's unlikely that they'll ramp up high enough to derail growth," he added, signaling that while the policy change could tighten conditions for some import-related activity, it is not expected to overturn the broader growth outlook outlined by Wolfe.


Implications and context

  • The effective tariff rate fall has been meaningful and may have supported aggregate U.S. growth.
  • Policy moves to reinstate permanent Section 301 tariffs and a rate floor could lift country-specific tariff rates.
  • Wolfe expects any renewed tariff pressure to emerge in 2026 and to be modest rather than economy-altering.

Risks

  • Policy reversal - the proposed restoration of permanent Section 301 tariffs and a rate floor could increase tariffs for key trading partners, creating renewed headwinds for import-sensitive parts of the economy.
  • Timing uncertainty - Wolfe expects tariff-related tightening to appear later in 2026, leaving a window where market participants may misread near-term trends.
  • Measurement and compliance - evidence of tariff evasion and legal rulings (including the Supreme Court decision affecting IEEPA tariffs) have influenced effective rates, introducing volatility and uncertainty for sectors reliant on imports.

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