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In effect
Federal Register
Section 232 (Trade Expansion Act of 1962)

Section 232 pharmaceutical tariffs (phased in from July 31, 2026)

The April 2026 proclamation imposes pharmaceutical tariffs in two phases. Duties have applied since July 31, 2026 to companies listed in Annex III; other companies are scheduled for September 29, 2026. The default rate on patented pharmaceuticals and ingredients is 100%, with 15% treatment for the EU, Japan, South Korea, and Switzerland, zero for the UK, and 20% or 0% for companies with approved U.S. onshoring agreements. Generics remain excluded for now.

Current rate
For covered Annex III companies: 100% default on patented pharmaceuticals; 15% EU/JP/KR/CH; 0% UK; 20% or 0% under approved company agreements
Affected countries
All origins
HTS chapters
30
Notes
Other covered companies are scheduled to enter the regime on September 29, 2026. Generic pharmaceuticals remain excluded. An onshoring-plan rate rises to 100% on April 2, 2030 absent completion.
Scheduled escalation:

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Timeline

  1. In effect
    Federal Register

    First collection phase takes effect

    The tariff regime begins for companies listed in Annex III; remaining covered companies are scheduled to enter on September 29, 2026.

    Official sources
  2. In effect
    Federal Register

    UK pharmaceutical rate reduced to zero

    Commerce implements the U.S.-UK pharmaceutical pricing arrangement by reducing the Section 232 rate on qualifying UK patented pharmaceuticals and ingredients from 10% to 0%.

    Official sources
  3. Announced
    Federal Register

    Onshoring-agreement procedures published

    Commerce publishes procedures for company-specific onshoring agreements that qualify for reduced rates.

    Official sources
  4. Announced
    Federal Register

    Section 232 proclamation issued

    Formal proclamation sets the 100% default rate with country and onshoring carve-outs, effective July 31, 2026 (Annex III companies) and September 29, 2026 (all others).

    Official sources
  5. Threatened
    Statement only

    100% pharma tariff statement

    The president states branded pharmaceutical imports will face 100% tariffs unless manufacturers build U.S. plants. No instrument follows for six months.

    Official sources

Related measures

Section 232 steel tariffs (50%)

In effect
CBP guidance

National-security tariffs on steel, in place since 2018 and sharply expanded in 2025–26: the rate doubled to 50% in June 2025, country exemptions ended, the duty base now covers the full customs value of derivative articles, and hundreds of downstream products were added. A 15% transitional rate for certain metal-intensive equipment runs through December 31, 2027. Unaffected by the Supreme Court's IEEPA ruling.

Current rate: 50% on steel articles and most derivatives; 15% transitional rate for certain metal-intensive equipment

Expires by law:
90 FR 24199Status verified 06/12/2026
View full timeline

National-security tariffs on aluminum, expanded in lockstep with steel: 50% since June 2025 for all origins, derivative coverage broadened repeatedly, duties assessed on full customs value since April 2026, and a 15% transitional rate for certain equipment through December 31, 2027. Unaffected by the Supreme Court's IEEPA ruling.

Current rate: 50% on aluminum articles and most derivatives; 15% transitional rate for certain metal-intensive equipment

Expires by law:
90 FR 24199Status verified 06/12/2026
View full timeline

50% tariffs on semi-finished copper and copper-intensive derivative products, effective August 2025 — the first Section 232 action on copper. The regime was folded into the unified metals framework in 2026: expanded coverage in April, further adjustments and a 15% transitional rate for certain categories in June, running through December 31, 2027.

Current rate: 50% on semi-finished copper and most derivatives; some categories at 25% or the 15% transitional rate

Expires by law:
90 FR 37727Status verified 06/12/2026
View full timeline

TariffOS provides tariff and trade policy information for research and monitoring purposes. It is not legal, tax, customs, or financial advice. Always verify critical decisions against official sources or with qualified professionals.