An HS code (Harmonized System code) is an international product classification system used in global trade.
It serves as a universal “language” that enables customs authorities and businesses to clearly identify the goods being imported or exported.
This code is the basis for determining applicable customs duties, VAT calculations, licensing requirements, and whether additional controls (e.g., safety, origin, or compliance requirements) may apply to the goods.
HS Code
The HS code, sometimes also called a commodity code or HS tariff code, is used to determine:
- applicable customs duties
- VAT calculation
- licensing requirements
- possible additional inspections or regulatory controls
Because of this, the HS code plays a crucial role in the customs clearance process.
Who Determines the HS Code and What Does It Depend On?
In most cases, the HS code is initially provided by the sender – the manufacturer, supplier, or exporter.
This is because the sender usually knows the product best, including:
- materials and composition
- technical characteristics
- function and intended use
- manufacturing specifications
HS code classification is based not on the product’s commercial name but on its actual characteristics and function.
Remember! Customs authorities assess the real nature of the goods rather than just the code provided in the documentation.
However, in practice, the situation is more complex.
Importers cannot always rely solely on the HS code listed on the invoice.
If incorrect information is declared, the importer may also be held responsible.
How Is the Correct HS Code Determined?
An HS code is not assigned randomly or based on a marketing name.
Proper HS tariff classification is determined using several key criteria that evaluate the true nature of the goods.
Product Function
The primary factor in classification is what the product does and what it is intended for. The marketing name of a product is not decisive.
Technical Characteristics
Power, size, construction, mechanism and components often determine the appropriate classification category.
Material and Composition
The material of a product – such as plastic, steel, textile, or a combination of materials – can significantly affect the HS code classification.
Product Condition
It is important to consider whether the goods are finished, unfinished, disassembled, or supplied as a set, as these factors may influence the HS code classification.
International Classification Rules
The HS code also includes specific chapter notes and interpretation rules that help determine the correct classification in complex cases.
How to Check an HS Code Before Submitting a Declaration
The HS code is used in customs declarations and trade documentation to classify goods in international trade.
However, it plays a particularly important role in import declarations, as the HS code determines the applicable customs duties, VAT calculation and possible regulatory requirements.
Therefore, before submitting an import declaration, it is advisable to verify the HS code, especially for new or technically complex products, because incorrect classification may lead to delays, additional inspections or recalculated duties
In the European Union, HS code verification is typically carried out using the TARIC system, which provides information about applicable customs duties and additional regulatory requirements.
The verification process usually includes several consecutive steps.

Accurate Product Description
HS code classification begins with detailed information about the product, including:
- material
- function
- technical specifications
- intended use
Without this information, accurate HS code classification is not possible.
If a Product Matches Multiple Classification Positions
If a product could fall under several possible classifications, interpretation rules are applied to determine the dominant function or characteristic of the goods.
Most classification mistakes occur at this stage – not during the search itself, but during the interpretation of the classification rules.


Searching in the TARIC System
The next step is performing a search in the TARIC database, where relevant chapters and classification positions are reviewed.
It is not enough to select the first result that appears.
The product characteristics must be carefully compared with the legal wording of the classification position to ensure that the correct HS code is selected.
What Happens if an Incorrect HS Code Is Declared?
Customs authorities carefully verify the information submitted in customs declarations.
During the clearance process, they compare the declared data with the actual characteristics of the goods.
Typically, customs officials review several key elements:
- product description
- accompanying documents (invoice, packing list, transport documents)
- declared classification code (HS code)
If these elements do not correspond to the actual goods, customs may initiate a further verification procedure.
This can involve:
- A more detailed document review
- Additional questions for the importer or exporter
- In some cases, a physical inspection of the shipment is even required.
This can lead to delivery delays and additional logistics costs.
In some situations, incorrect classification may also trigger additional compliance checks.
Especially if the goods fall under specific regulations:
- safety requirements
- licensing rules
- product standards
If an incorrect HS code is identified, customs authorities may take several actions.
First, the customs duties and taxes may be recalculated based on the correct classification.
If the incorrect HS code resulted in lower duties, the importer may be required to pay the difference.
Furthermore, customs authorities may impose financial penalties in cases where the incorrect classification of goods is deemed negligent or intentionally misleading.
This can result in significant repercussions for the importer, including a temporary hold on the shipment until the classification issue is thoroughly examined and resolved.
Such actions are taken to ensure compliance with trade regulations and to maintain the integrity of customs procedures.
Need help with HS code determination?
Contact our customs brokers
If the classification is not entirely clear, or you want to make sure the HS code is correct before submitting your declaration, our customs brokers will help you assess the situation and reduce risk.
Laura Jauce
Transport and logistics manager, Customs broker
📞 Tel. Nr.: +371 264-50-597
📧 E-pasts: assistant@a-es.eu
Laura Šinkeviča
Logistics Specialist, Customs Broker
📞 Tel. Nr.: +371 27-803-623
📧 E-pasts: cargo@a-es.eu
📌We’d love to hear from you!
Our customs brokers are eager to assess your goods and assist you in determining the right HS code before you submit your declaration. Let’s get started!
Customs declarations are not a complicated process if you have the right support.



