Q2 2026 Trade Update: US Section 232/301, EU €3 Parcel Rule & CBAM Live — Importer's Playbook

Q2 2026 is the most turbulent quarter for cross-border trade in a generation. Between April and July, three separate rulebooks are being rewritten — in the United States, the European Union, and under the EU's carbon border mechanism. If you import anything into either market, your landed cost model is already out of date.

This is a single-document playbook covering every change that took effect between January and April 2026, plus the ones locked in for July 1 and the back half of the year. No speculation — only what's been signed into law or published in an official register.

TL;DR — the five things that changed

1. Section 232 hikes (US, April 2) — steel, aluminium and copper duties up to 50%; certain pharmaceuticals and APIs up to 100%. 2. Section 301 investigations (US, March 11) — 16 countries under probe including China, EU, Japan, Korea, Mexico. New tariffs expected summer 2026. 3. IEEPA tariffs are gone (US, February) — the Supreme Court struck them down; the Trump administration is rebuilding equivalent duties under 232 and 301 authorities instead. 4. EU €3 parcel duty (July 1) — the €150 customs exemption is abolished; every non-EU parcel in IOSS scope owes a flat €3. 5. CBAM definitive phase (January 1) — verified emissions, annual declarations, and real certificate exposure on 2026 imports of steel, aluminium, cement, fertiliser, hydrogen and electricity.

If you ship into the US or EU — whether as a Shopify DTC brand, an Amazon FBA seller, or a B2B importer — at least three of these affect you directly.

1. The US: Section 232 tariffs hit on April 2, 2026

Eighteen days before this post went out, a new wave of Section 232 duties took effect. Section 232 of the Trade Expansion Act of 1962 lets the President impose tariffs on imports that threaten US national security — a doctrine that the Trump administration has expanded aggressively through 2026.

The April 2 package covers two priority areas:

- Metals: certain steel, aluminium and copper imports are now subject to duties up to 50% on top of MFN rates. This applies broadly to country of origin, not just China. - Pharmaceuticals: certain finished pharmaceuticals and active pharmaceutical ingredients (APIs) are now taxed up to 100%. This is the largest single tariff rate the US has imposed on pharma in the modern era.

Why "up to"? The executive orders set rate ceilings but the exact rate depends on the HS/HTS subheading and the country of origin. Some tariff lines land at 25%, others at the full 50% or 100%. Check the specific HTS code on the USITC schedule — not the press release.

2. Section 301 investigations against 16 countries

On March 11, 2026, the US Trade Representative published a Federal Register notice opening Section 301 investigations into the manufacturing practices of sixteen trading partners: Bangladesh, Cambodia, China, the European Union, India, Indonesia, Japan, Malaysia, Mexico, Norway, Singapore, South Korea, Switzerland, Taiwan, Thailand, and Vietnam.

Section 301 of the Trade Act of 1974 is the authority that produced the original "China tariffs" of 2018. The process is well-worn:

1. USTR investigates specific practices (subsidies, currency manipulation, IP policies, non-tariff barriers) 2. Public comment period 3. Public hearing 4. Final determination, published with product lists and rates 5. Tariffs impose 30+ days later

Key dates importers should have in their calendar right now:

- April 15 — deadline for written submissions and hearing appearance requests - April 28 — public hearing - Summer 2026 — final determinations expected; tariffs likely take effect August–September

The lists will target approximately 100 countries worth of products collectively. Unlike Section 232 (narrow product categories), Section 301 tariffs typically hit broad HS chapters — electronics, machinery, apparel, furniture, consumer goods. If you import anything from the 16 listed countries, plan for a 10–25% cost increase in H2.

3. Why the IEEPA tariffs disappeared (and what replaced them)

Between 2025 and early 2026, a large portion of Trump's tariff program ran under the International Emergency Economic Powers Act (IEEPA). In February 2026, the US Supreme Court struck those down, ruling that IEEPA does not grant the President authority to impose broad-based tariffs as an emergency measure.

That decision removed a lot of headline rates overnight — but the administration immediately pivoted to Section 232 and Section 301 as alternative authorities. The net effect is not lower tariffs; it's the same tariffs, rebuilt on firmer legal ground. Importers who had begun counting on IEEPA relief through refund claims should work with their customs broker on exactly which duty lines the court's decision applies to retroactively.

4. Section 321 is still gone — and going to stay gone

The $800 de minimis exemption under Section 321 was suspended globally on August 29, 2025. In February 2026, the administration confirmed the suspension remains in place for every trading partner, including China and Hong Kong.

What this means operationally:

- Every parcel entering the US, regardless of value, now requires formal customs entry - Duties, MPF (Merchandise Processing Fee), and brokerage fees apply to shipments that used to move duty-free - A $10 retail product from China imported solo can now carry $12–$15 of duty and fees stacked on top - The economic case for direct-from-China DTC fulfilment into the US has collapsed for most SKUs under $50 retail

If you haven't already migrated to consolidated shipments, a US 3PL, or an FTZ (Foreign Trade Zone) model, the math keeps getting worse. We've covered this in depth in *De Minimis Is Dead* — still relevant eight months in.

5. EU: the €150 exemption dies on July 1, 2026

On February 11, 2026, the Council of the EU gave final legislative approval to a package that abolishes the €150 customs duty exemption for low-value consignments. Here's what takes effect on July 1, 2026:

- €150 exemption: gone. Every commercial parcel into the EU owes customs duty from the first cent of declared value. - €3 flat parcel duty. A simplified flat-rate duty of €3 per parcel applies to low-value consignments where the non-EU seller is registered in the Import One-Stop Shop (IOSS). The European Commission estimates this covers ~93% of e-commerce inbound flows. - IOSS unchanged for VAT. The €150 ceiling for IOSS VAT collection stays in place — this change is specifically about customs duty, not VAT.

In practical terms, a €25 parcel from a US Shopify store to a customer in Germany used to owe €0 duty and VAT collected via IOSS. From July 1, the same parcel owes €3 duty plus VAT. That's a 12% cost increase on a €25 order — enough to erase the margin on a lot of DTC SKUs.

Member-state handling fees on top. Separately from the €3 EU-level duty, several member states — Belgium, France, Italy, the Netherlands, and Romania — have either introduced or are preparing their own national customs handling fees. Some apply from January 1, 2026; others from July. These are flat per-parcel surcharges paid to the postal or customs operator, typically in the €2–€6 range.

6. The EU customs reform — the long-range calendar

The €3 parcel duty is one piece of a much larger reform. On March 26, 2026, the European Parliament and the Council formally agreed the landmark EU Customs Reform — the biggest restructuring of EU customs law since 1968. Key milestones:

- July 1, 2026 — €3 parcel duty begins; IOSS scope expanded to align - July 1, 2028 — EU Customs Data Hub operational for e-commerce goods. Sellers and platforms submit data directly instead of filing through national customs systems - March 1, 2034 — Full rollout. The Data Hub covers all movements of goods, replacing 27 national systems with a single EU-wide layer

The Data Hub is the structural change that will actually move the needle for platforms and marketplaces. Rather than every Shopify app, Amazon seller, or courier integrating with 27 national customs systems, integration happens once, at the EU level. Expect marketplace-side customs obligations to increase between 2026 and 2028 as the Commission phases in pre-arrival data requirements.

7. CBAM's definitive phase is live — and the declarant deadline has passed

The Carbon Border Adjustment Mechanism (CBAM) entered its definitive phase on January 1, 2026. If you import the covered goods into the EU — cement, iron and steel, aluminium, fertilisers, electricity, or hydrogen — this is now a real compliance obligation, not a reporting exercise.

What changed versus the 2023–2025 transitional period:

- Annual declarations replace quarterly reports. Emissions embedded in 2026 imports must be declared by September 30, 2027. - Third-party verification is mandatory. Reported emissions must be verified by an accredited verifier, including an on-site audit in the first year and a strict 5% variance threshold against actual data. - Certificate purchase starts February 1, 2027. Importers buy CBAM certificates at a price indexed to the EU ETS auction price, then surrender them proportionate to embedded emissions. - Authorised CBAM Declarant status is required. The deadline to apply was March 31, 2026 — that's already passed. If you missed it and import covered goods in meaningful volumes, you need emergency outreach to your national competent authority now.

CBAM doesn't affect most e-commerce sellers directly (retail quantities of consumer goods rarely fall into the six covered categories), but it does affect your suppliers. Expect cost pass-through on anything with significant steel, aluminium, or cement content — packaging, furniture frames, industrial equipment, e-bikes, solar panels. Ask your suppliers for their CBAM posture before negotiating 2026 prices.

8. What importers should do in Q2 2026

A pragmatic checklist for the next 10 weeks, ordered by urgency:

9. Key dates on your calendar through 2027

A consolidated calendar of every date mentioned above, plus the ones that haven't made the news yet.

Key takeaways

- Q2 2026 layered three separate tariff regimes: US Section 232 hikes, US Section 301 probes, and the EU's new €3 parcel duty. The era of stable landed-cost models is over for now. - The US Supreme Court's February ruling didn't lower tariffs — it moved them from IEEPA to Section 232/301 authority. Treat any "tariff refund" claim with scepticism until your broker has verified it. - The biggest single-line cost increase this quarter is the April 2 pharma tariff (up to 100%). The second biggest for most DTC brands is the July 1 EU parcel duty, which compounds with member-state handling fees. - CBAM is real now. Even if you don't import covered goods, your suppliers probably do — price negotiations for H2 2026 should bake in their pass-through cost. - Free tools to run the numbers: Import Duty Calculator, Landed Cost Calculator, HS Code Lookup. Set up monitoring on your top 20 HS codes so the next Section 301 list doesn't surprise you.