What does the coming of HS 2028 on January 1, 2028 mean for companies involved in international trade?

Developed by the World Customs Organization (WCO), the Harmonized System (HS) is used for the classification of goods traded internationally. It underpins tariff calculation, customs declaration, and free trade agreement (FTA) eligibility for more than 200 countries and economies. 

Every five years, WCO amends the HS to reflect evolving trade patterns, technological innovation, environmental priorities and public health developments. The last time WCO made amendments (HS 2022), many compliance teams weren’t prepared, and regulators took notice. Importers discovered that a seemingly routine code update could quickly turn into a costly upheaval, disrupting compliance, increasing duty costs and interrupting preferential trade claims. 

With HS 2028 on the horizon, importers would be well-served to heed the cautionary tale of HS 2022. By focusing on the downstream impact of the coming amendments, companies can manage change with control, instead of reacting under pressure to the coming structural shift that will impact tariffs, trade agreements and compliance exposure across global supply chains.

HS 2028 is a structural recalibration of the global tariff classification framework importers rely on daily. Unlike previous HS updates, the scope of HS 2028 is broader, the enforcement environment is stricter, and the margin for error is smaller. 

HS 2028 introduces 299 amendment sets, including the addition of six new headings and 428 subheadings, deletion of five headings and 172 subheadings, and structural revisions to how products are classified globally. These influence tariff application, regulatory controls and supply chain economics.

According to WCO, HS 2028 amendments reflect critical, urgent or emerging topics, such as health emergency preparation, the fight against epidemics and environmental pollution. In essence, HS 2028 reflects broader global priorities:

• Strengthened public health differentiation,
• Enhanced environmental monitoring,
• Improved granularity for evolving technologies, and
• Greater statistical clarity for trade policy purposes

While not every importer will be affected equally, certain sectors face meaningful change under HS 2028. Public health is a central focus, driven by lessons learned from recent global health crises. 

Notably, new subheadings enhance the visibility of essential supplies used in health emergencies (such as ambulances, personal protective equipment and medical ventilators) and will facilitate the application of emergency trade measures and preparedness planning. Medical supply chains should validate tariff treatment and regulatory alignment carefully.

Other key areas of regulatory change include the following:

Vaccines. HS 2028 introduces major structural changes for vaccines, enhancing differentiation within pharmaceutical categories. The updated structure is designed to “improve transparency of vaccine trade flows, support global immunization programs, and facilitate timely access to vaccines, particularly in emergency situations.” Importers in the pharmaceutical sector should reassess tariff classification carefully to ensure continued compliance.

Dietary supplements. To address long-standing ambiguity and classification inconsistencies, HS 2028 introduces a new dedicated heading for dietary supplements. For companies operating in nutrition and wellness markets, the change requires product-level reassignment and tariff review. 

Plastics and environmental goods. Environmental protection features prominently in the HS 2028 updates, with a focus on plastic products commonly associated with pollution (such as drinking straws, packaging and balloons) and plastic waste. The revisions align classification more closely with sustainability objectives and environmental monitoring priorities. Companies trading in plastics, polymers and waste-related materials may see shifts in tariff positioning or regulatory reporting requirements.

Emerging technologies and chemicals. Electronics, advanced manufacturing components, and chemical products — often associated with tariff volatility and trade remedies — are refined under HS 2028. Businesses working in this sector should be aware that even modest structural adjustments can shift tariff exposure.

Since tariffs are tied directly to HS codes, reclassification under HS 2028 may alter cost structures and affect landed cost. Importers should be aware that products reassigned to a new subheading could face a revised tariff rate, exposure to antidumping or countervailing duties, or changes in eligibility for preferential tariff treatment. 

FTAs add another layer of complexity. These agreements frequently reference specific HS headings in origin rules. If the headings change under HS 2028, origin qualifications must be reassessed to preserve preferential tariffs and prevent overclaimed benefits.

For businesses with high-volume trade flows, even incremental tariff shifts can compound significantly across sourcing strategies and pricing models, materially affecting margin assumptions and budgeting decisions. 

For multinational organizations in particular, coordination will be critical. HS 2028 is implemented globally at the six-digit level, but national tariff schedules update at varying speeds and with different levels of detail. This mismatch creates a risk of inconsistency across jurisdictions and potential discrepancies in tariff declarations if changes aren’t centrally managed.

As HS 2028 draws closer, forward-thinking companies are harkening back to costly missteps that complicated trade compliance during the last HS update. Indeed, the transition to HS 2022 exposed some predictable operational gaps, leading to a string of compliance issues, including misclassification errors, loss of preferential tariff treatment, data inconsistency, incorrect tariff payments and audit exposure. And it revealed a consistent pattern: Technical updates become compliance risks when preparation is reactive.

With HS 2022, many businesses updated systems in silos. By updating tariff tables in isolation, they created inconstancies between enterprise resource planning systems, trade platforms and broker filings. Importers need to treat HS 2028 implementation as an enterprise-wide initiative.

Five years ago, some companies underestimated mapping complexity and relied too heavily on automated crosswalks without validating one-to-many or many-to-one restructurings. For HS 2028, companies should bear in mind that correlation tables support, but do not replace, structured review. They should use correlation tables as guidance, but be sure to validate classification decisions. 

Because changes to HS headings affected origin rule references in HS 2022, many businesses that didn’t conduct a coordinated review found their preferential tariff claims disrupted. HS 2028 should trigger FTA reassessment protocols for affected products. 

In addition, historical reporting and tariff forecasting became distorted when legacy codes weren’t mapped correctly. To prevent data continuity gaps with HS 2028, importers need to preserve analytical integrity through disciplined crosswalk logic.

These HS 2022 oversights occurred within a period of increased scrutiny. As a result, inconsistent tariff filings attracted unwanted attention. While regulators acknowledge that structural change increases risk, they expect demonstrable diligence. In preparation for the HS 2028 transition, companies should ensure governance and decision-making processes are fully documented.

To simplify compliance and ensure operational continuity, preparation needs to start well before 2028. Early preparation will reduce disruption and enhance defensibility, enabling compliance and finance teams to anticipate tariff adjustments, rather than respond under pressure. 

The preparation window through 2026 and 2027 provides a strategic opportunity to align classification governance, tariff modeling, and system integration before HS 2028 takes effect. Importers should begin structured preparation immediately:

• Conduct enterprise-wide classification impact assessments;
• Validate classification crosswalks;
• Identify products likely affected by HS 2028;
• Model potential tariff exposure and landed cost scenarios;
• Review FTA qualification frameworks;
• Coordinate updates across ERP, global trade management, and broker systems;
• Document classification governance policies, and
• Train internal stakeholders on structural changes.

HS 2028 represents the next major evolution of global tariff classification, reshaping targeted sectors and driving structured product-level review. By approaching HS 2028 methodically, through validating mappings, aligning systems, modeling tariff impact and documenting governance, importers can better avoid the disruption seen in previous transitions. 

Trade-compliance teams that prepare now, leveraging a combination of technology and global intelligence partners to bring together authoritative classification content, continuous monitoring of national tariff updates and advanced analytics, will navigate the transition with greater clarity and confidence. 

Importantly, companies that recognize HS 2028 as a structural tariff milestone will be more strongly positioned to protect margins, preserve compliance integrity and strengthen operational resilience and competitive stability moving forward.

Jackson Wood is director of industry strategy, global trade intelligence for Descartes.