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Latest tariff changes

Selected U.S. tariff-policy events, separated into formal actions and announcement-only signals.

Hand-curated from official sources. Every measure links to its Federal Register, USTR, CBP, or court document.

Rate & compliance changes

Linked to a Federal Register notice, CBP guidance, or court ruling. Verify product-level applicability before acting.

In effect
Federal Register

June 2026 adjustments

Further adjustments expand the reduced 15% transitional rate to agricultural equipment, residential HVAC, and certain industrial machinery, and lower the U.S.-content threshold from 95% to 85%, effective June 8, 2026 through December 31, 2027.

Section 232 steel tariffs (50%)

In effect
Federal Register

June 2026 adjustments

Transitional 15% rate expanded to more equipment categories; U.S.-content threshold lowered to 85%.

Section 232 aluminum tariffs (50%)

In effect
Federal Register

June 2026 adjustments

Further rate-structure adjustments effective June 8, 2026 through December 31, 2027.

Section 232 copper tariffs (50%)

Announced
Federal Register

Onshoring-agreement procedures published

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

Section 232 pharmaceutical tariffs (announced — takes effect July 31, 2026)

In effect
Federal Register

Court of International Trade rules surcharge unlawful

A divided CIT panel holds the Section 122 surcharge unlawful. The government appeals to the Federal Circuit; collection continues pending appeal.

Section 122 temporary global import surcharge (10%)

Under review
Federal Register

Second four-year review initiated

USTR opens the second statutory review of the China 301 actions — the process that could raise, lower, or restructure the rates.

Section 301 tariffs on China (Lists 1–4A and 2024 strategic increases)

In effect
Federal Register

Duty base expanded to full customs value

Post-IEEPA-ruling proclamation tightens the regime: derivative duties apply to full customs value and more products are covered.

Section 232 steel tariffs (50%)

In effect
Federal Register

Folded into unified metals framework

Coverage expanded and enforcement tightened alongside steel and aluminum.

Section 232 copper tariffs (50%)

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).

Section 232 pharmaceutical tariffs (announced — takes effect July 31, 2026)

In effect
Federal Register

Surcharge takes effect

10% surcharge applies to goods entered for consumption on or after February 24, 2026. The 150-day statutory clock starts running.

Section 122 temporary global import surcharge (10%)

Struck down
Court ruling / statute

Supreme Court strikes down IEEPA tariffs, 6–3

Chief Justice Roberts writes that IEEPA's power to 'regulate importation' does not include imposing tariffs. The reciprocal tariff program is void; paid duties become potentially refundable.

IEEPA reciprocal tariffs (struck down by the Supreme Court)

Struck down
Court ruling / statute

Struck down by the Supreme Court

The IEEPA ruling voids the fentanyl tariffs along with the reciprocal program.

IEEPA fentanyl tariffs on China (struck down)

Struck down
Court ruling / statute

Struck down by the Supreme Court

The IEEPA ruling voids the Canada border tariffs.

IEEPA border tariffs on Canada (struck down)

Struck down
Court ruling / statute

Struck down by the Supreme Court

The IEEPA ruling voids the Mexico border tariffs.

IEEPA border tariffs on Mexico (struck down)

Paused
Court ruling / statute

Underlying tariffs voided

The Supreme Court's IEEPA ruling voids the suspended tariffs themselves; the truce survives as the framework for restoration talks.

U.S.–China reciprocal tariff truce (expires November 10, 2026)

In effect
Federal Register

Narrow 25% tariff takes effect

Proclamation imposes 25% on advanced semiconductors meeting defined performance thresholds, far narrower than the threatened scope.

Section 232 semiconductor tariffs (25%, advanced AI chips)

In effect
Federal Register

Amendments published

Amendments adjust scope and align rates with framework agreements for certain partners.

Section 232 timber, lumber, and furniture tariffs

In effect
Federal Register

Exclusions extended to November 10, 2026

USTR extends product exclusions, aligning their expiry with the U.S.–China truce window.

Section 301 product exclusions (extended through November 10, 2026)

Reduced
Federal Register

Cut to 10% under the trade truce

Following the U.S.–China economic and trade arrangement, 10 percentage points are removed from the cumulative rate.

IEEPA fentanyl tariffs on China (struck down)

Paused
Federal Register

Kuala Lumpur arrangement: one-year truce

Suspension of heightened reciprocal rates extended through November 10, 2026; fentanyl tariff cut by 10 points; China commits on rare earths and agricultural purchases.

U.S.–China reciprocal tariff truce (expires November 10, 2026)

Withdrawn
Federal Register

Defused by the Kuala Lumpur truce

The truce arrangement supersedes the threat; the 100% tariff is never imposed.

100% China tariff threat (never formalized — withdrawn)

Stayed
Federal Register

Supreme Court hears argument

The Court hears consolidated argument in Learning Resources, Inc. v. Trump on whether IEEPA authorizes tariffs.

IEEPA reciprocal tariffs (struck down by the Supreme Court)

In effect
Federal Register

Tariffs take effect

25% duties on medium- and heavy-duty vehicles and parts and 10% on buses take effect.

Section 232 medium- and heavy-duty vehicle tariffs

In effect
Federal Register

Tariffs take effect

10% duties on softwood timber and lumber and 25% on listed furniture products take effect.

Section 232 timber, lumber, and furniture tariffs

Under review
Federal Register

USTR opens public comment for the review

Request for comments and notice of public hearing on the operation of USMCA ahead of the 2026 joint review.

USMCA joint review (July 1, 2026)

In effect
Federal Register

Scope modified; framework-deal procedures established

Modifications align reciprocal rates with announced framework agreements and set procedures for implementing them.

IEEPA reciprocal tariffs (struck down by the Supreme Court)

Paused
Federal Register

Truce extended 90 days

The suspension is extended while negotiations continue.

U.S.–China reciprocal tariff truce (expires November 10, 2026)

In effect
Federal Register

50% copper tariff takes effect

Proclamation imposes 50% tariffs on semi-finished copper products and copper-intensive derivatives.

Section 232 copper tariffs (50%)

Paused
Federal Register

Country-specific rate pause extended

The suspension of higher country-specific rates is extended while bilateral deals are negotiated.

IEEPA reciprocal tariffs (struck down by the Supreme Court)

In effect
Federal Register

Rate doubled to 50%

Proclamation raises the steel tariff from 25% to 50% for all origins except the United Kingdom (25%).

Section 232 steel tariffs (50%)

In effect
Federal Register

Rate doubled to 50%

Proclamation raises the aluminum tariff to 50% for all origins except the United Kingdom (25%).

Section 232 aluminum tariffs (50%)

Stayed
Federal Register

CIT rules tariffs unlawful in V.O.S. Selections

The Court of International Trade holds IEEPA does not authorize the tariffs. The ruling is stayed pending appeal; collection continues.

IEEPA reciprocal tariffs (struck down by the Supreme Court)

Paused
Federal Register

Geneva agreement pauses escalation

Both sides step back from triple-digit tariffs for 90 days; the U.S. reciprocal rate on China drops to 10% plus the 20% fentanyl tariff.

U.S.–China reciprocal tariff truce (expires November 10, 2026)

In effect
Federal Register

Auto-parts tariff takes effect

25% tariff extends to listed automobile parts; amendments establish the import-adjustment offset for U.S. assembly.

Section 232 automobile and auto-parts tariffs (25%)

In effect
Federal Register

10% baseline takes effect

Baseline rate applies to most imports; country-specific rates follow on April 9 and are suspended for 90 days the same day for most partners.

IEEPA reciprocal tariffs (struck down by the Supreme Court)

In effect
Federal Register

25% vehicle tariff takes effect

Proclamation imposes 25% tariffs on imported automobiles.

Section 232 automobile and auto-parts tariffs (25%)

Reinstated
Federal Register

Exemptions ended, scope expanded

February 2025 proclamation ends country exemptions and alternative agreements, restoring the 25% tariff on all origins and extending it to more derivatives.

Section 232 steel tariffs (50%)

Reinstated
Federal Register

Rate raised to 25%, exemptions ended

February 2025 proclamation raises aluminum tariffs from 10% to 25% and ends country exemptions.

Section 232 aluminum tariffs (50%)

Reduced
CBP guidance

USMCA-originating goods exempted

Goods qualifying for USMCA preference are excluded from the additional duties.

IEEPA border tariffs on Canada (struck down)

Reduced
CBP guidance

USMCA-originating goods exempted

Goods qualifying for USMCA preference are excluded from the additional duties.

IEEPA border tariffs on Mexico (struck down)

In effect
Federal Register

Raised to 20%

The additional tariff is doubled to 20%.

IEEPA fentanyl tariffs on China (struck down)

In effect
CBP guidance

Tariffs take effect

CBP implements 25% additional duties on products of Canada (10% on energy resources).

IEEPA border tariffs on Canada (struck down)

In effect
CBP guidance

Tariffs take effect

CBP implements 25% additional duties on products of Mexico.

IEEPA border tariffs on Mexico (struck down)

In effect
Federal Register

10% tariff takes effect

Executive order imposes an additional 10% tariff on products of China citing the synthetic-opioid supply chain.

IEEPA fentanyl tariffs on China (struck down)

In effect
Federal Register

Four-year-review increases begin

Strategic-sector increases phase in: 100% on EVs and 25–50% on solar, semiconductors, batteries, and critical minerals across 2024–2026.

Section 301 tariffs on China (Lists 1–4A and 2024 strategic increases)

In effect
CBP guidance

List 1 takes effect

First tranche of 25% tariffs on Chinese goods under the Section 301 technology-transfer investigation.

Section 301 tariffs on China (Lists 1–4A and 2024 strategic increases)

Threat watch

Announced or threatened — no formal instrument exists yet. No compliance action is required. Watch, don't panic.

Announced
Executive order

Proclamation signed hours after IEEPA ruling

President signs a proclamation imposing a 10% temporary import surcharge under Section 122, replacing part of the revenue from the IEEPA tariffs struck down the same day.

Section 122 temporary global import surcharge (10%)

Threatened
Statement only

Administration signals restoration plans

Treasury says combining Section 122, 232, and 301 will keep 2026 tariff revenue 'virtually unchanged' despite the ruling.

Restoration of voided China tariffs (under discussion)

Threatened
Statement only

100% tariff threatened via social media

Post threatens an additional 100% tariff on China from November 1 in response to rare-earth export controls. Markets drop sharply; no instrument follows.

100% China tariff threat (never formalized — withdrawn)

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.

Section 232 pharmaceutical tariffs (announced — takes effect July 31, 2026)

Threatened
Statement only

'100% tariff on chips' statement

The president states semiconductor imports will face tariffs of roughly 100% unless companies manufacture in the U.S. No legal instrument follows at that scope.

Section 232 semiconductor tariffs (25%, advanced AI chips)

Announced
Executive order

Executive Order 14257 signed ('Liberation Day')

EO imposes a 10% baseline tariff on nearly all imports and higher country-specific 'reciprocal' rates under IEEPA.

IEEPA reciprocal tariffs (struck down by the Supreme Court)

Announced
Executive order

Executive order signed, then paused 30 days

Order imposes 25% tariffs on Canadian goods; implementation is paused for 30 days two days later after border-security commitments.

IEEPA border tariffs on Canada (struck down)

Announced
Executive order

Executive order signed, then paused 30 days

Order imposes 25% tariffs on Mexican goods; implementation is paused for 30 days after commitments on border enforcement.

IEEPA border tariffs on Mexico (struck down)

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.