Tariff classification (HS, CN, TARIC)

Understanding the nomenclature hierarchy

Tariff classification is the process of assigning a specific code to every product that crosses an international border. This code determines the applicable customs duty rate, VAT treatment, trade policy measures (anti-dumping duties, quotas, embargoes), and regulatory requirements (licences, certificates, standards). Getting the classification right is not optional - it is the single most important determination in any customs transaction.

The system is hierarchical, building from an international foundation to regional and national specificity:

The Harmonized System (HS) - 6 digits (WCO)

The Harmonized Commodity Description and Coding System (HS) is maintained by the World Customs Organization (WCO) and forms the foundation of virtually all customs nomenclatures worldwide. Over 200 countries and customs territories use the HS, covering more than 98% of world trade.

The HS is structured as follows:

• Sections (I-XXI) - 21 broad sections grouping related product categories (e.g., Section XI: Textiles and textile articles)
• Chapters (01-97) - 97 chapters within the sections (e.g., Chapter 62: Articles of apparel, not knitted or crocheted)
• Headings (4 digits) - approximately 1,200 headings (e.g., 6203: Men's suits, jackets, trousers)
• Subheadings (6 digits) - approximately 5,600 subheadings (e.g., 6203.42: Men's trousers, of cotton)

The first 6 digits are internationally harmonised - HS code 6203.42 means the same product whether you are importing into the EU, the US, Japan, or Brazil. This harmonisation is what makes international trade statistics comparable and trade agreements enforceable.

The HS is updated every 5 years. The current edition is HS 2022, which entered into force on 1 January 2022, and introduced significant changes including new subheadings for smartphones, drones, 3D printers, and e-waste.

The Combined Nomenclature (CN) - 8 digits (EU)

The Combined Nomenclature (CN) is the EU's tariff and statistical classification, extending the HS to 8 digits. Published annually as a Commission Implementing Regulation, the CN adds approximately 9,500 product subdivisions beyond the HS's 5,600.

Example:

• HS 6203.42 - Men's trousers, of cotton
• CN 6203 42 31 - Men's trousers of cotton, denim, workwear

The CN is used for:

• Intrastat declarations - reporting trade between EU member states
• Customs declarations - as the basis for TARIC codes
• Trade statistics - all EU trade data is coded at CN 8-digit level

The CN is updated every year (usually published in October for the following year). Always use the current year's CN for your declarations.

TARIC - 10 digits (EU)

The Integrated Tariff of the European Communities (TARIC) extends the CN to 10 digits and is the operational classification used for EU customs declarations. TARIC integrates:

• Customs duty rates (MFN, preferential, autonomous suspensions)
• Trade defence measures (anti-dumping duties, countervailing duties, safeguard measures)
• Tariff quotas and ceilings
• GSP preferences
• Prohibitions and restrictions (licences, sanctions, environmental regulations)
• CBAM reporting requirements (since 2026)
• VAT and excise duty information

Example:

• CN 6203 42 31 - Men's trousers of cotton, denim, workwear
• TARIC 6203 42 31 00 - Additional TARIC subdivision (if applicable)

The TARIC database is freely accessible at https://ec.europa.eu/taxation_customs/dds2/taric and is updated daily as measures change. You can also use our AI classification tool to search for TARIC codes and view the applicable measures.

The General Interpretive Rules (GIRs)

The 6 General Interpretive Rules are the legal foundation for all tariff classification decisions. They must be applied in strict sequential order - you only move to the next rule if the previous one does not resolve the classification.

GIR 1 - Titles of sections and chapters

Classification is determined by the terms of the headings and any relative Section or Chapter Notes. The titles of Sections, Chapters, and sub-Chapters are provided for ease of reference only.

This is the most important rule. Over 90% of classification decisions are resolved by GIR 1 alone. Read the heading text carefully - it defines exactly what products are included and excluded.

Critical: Section and Chapter Notes have legal force equal to the heading text. They may expand, restrict, or define terms used in headings. Always read them.

GIR 2(a) - Incomplete or unassembled goods

Any reference to an article shall include that article incomplete or unfinished, provided it has the essential character of the complete or finished article. It also covers complete or finished articles presented unassembled or disassembled.

This means a car imported without its engine is still classified as a car (heading 8703), not as a body (heading 8707), because the body has the essential character of a vehicle. Similarly, a flat-pack piece of furniture (unassembled) is classified as furniture, not as wooden panels.

GIR 2(b) - Mixtures and combinations

Any reference to a material or substance shall include mixtures or combinations of that material with other materials. Classification of goods consisting of more than one material is governed by GIR 3.

A heading referring to "articles of leather" also covers articles of leather combined with textile, as long as leather gives the essential character.

GIR 3 - Goods classifiable under two or more headings

When GIR 1 and 2 do not resolve classification (product could fall under multiple headings), apply GIR 3 in order:

• GIR 3(a) - the heading which provides the most specific description prevails over a more general heading
• GIR 3(b) - mixtures, composite goods, and sets are classified by the component which gives them their essential character
• GIR 3(c) - if 3(a) and 3(b) fail, classify under the heading which occurs last in numerical order

Essential character is the key concept in GIR 3(b) and is the source of most classification disputes. Factors include: the nature of the component, its bulk, weight, value, and the role it plays in use.

GIR 4 - Most akin goods

Goods which cannot be classified by the foregoing Rules shall be classified under the heading appropriate to the goods to which they are most akin.

This is a fallback rule for genuinely novel products that do not fit any heading. It is rarely used.

GIR 5 - Cases, containers, and packing

• GIR 5(a) - specifically shaped containers (camera cases, musical instrument cases) are classified with the article they contain
• GIR 5(b) - packing materials presented with the goods they contain are classified with the goods, unless clearly suitable for repetitive use

GIR 6 - Subheading classification

Classification at the subheading level follows the same rules as heading-level classification, comparing subheadings at the same level (one-dash versus one-dash, two-dash versus two-dash).

This is critical: you cannot jump between levels. First determine the correct 4-digit heading, then classify within that heading at the 6-digit level, and so on.

Binding Tariff Information (BTI)

A Binding Tariff Information (BTI) is an official customs decision that confirms the correct tariff classification for a specific product. Issued by the customs authority of an EU member state, a BTI is legally binding on all EU customs authorities for 5 years (since the UCC; previously 6 years under the old Community Customs Code).

Why request a BTI?

• Legal certainty - a BTI protects you from retrospective reclassification (and the duty adjustments and penalties that come with it)
• Uniform treatment - your goods will be classified the same way at every EU border crossing point
• Reduced inspections - customs officers are less likely to question the classification of goods covered by a valid BTI
• Trade planning - knowing the exact classification (and therefore the duty rate) allows accurate cost calculations and pricing

How to apply

BTI applications are submitted through the EU Customs Trader Portal (EU CTP) or, in some member states, through national customs portals. You will need to provide:

• Detailed product description (composition, function, dimensions, etc.)
• Product samples or photographs
• Technical documentation (ingredient lists, material composition, manufacturing process)
• Suggested classification with reasoning

Processing time is typically 60-90 days, though complex cases may take longer. The decision is free of charge.

Important BTI considerations

• A BTI is binding on customs authorities, not on you - you can choose not to use it (though this is rarely advisable)
• A BTI covers a specific product as described in the decision. Any change in the product may invalidate it.
• BTI decisions are published in the EBTI (European Binding Tariff Information) database, which is a valuable research tool when classifying similar products
• Since 2019, BTI decisions are cross-referenced with the EU Surveillance system - classification patterns inconsistent with BTI decisions trigger automated risk alerts

Practical classification methodology

Follow this systematic approach to classify your goods correctly:

Step 1: Identify your product precisely

Before touching any nomenclature, write a complete product description including:

• Material composition (percentage of each component)
• Function and intended use
• Manufacturing process
• Physical characteristics (dimensions, weight, form)
• State (raw, semi-processed, finished)
• Packaging and presentation

Step 2: Determine the Section and Chapter

Use GIR 1. Start with the Section and Chapter Notes - they often direct products to specific chapters. For example, Section XI Note 1 excludes certain textile articles that are classified elsewhere (e.g., textile articles for technical use go to Chapter 59 or specific headings).

Step 3: Identify candidate headings (4 digits)

Read the heading texts within the relevant chapter(s). Identify all headings that could potentially cover your product. Do not stop at the first plausible heading.

Step 4: Apply GIRs to select the correct heading

If multiple headings could apply, use GIR 2 and then GIR 3 (in order: 3a, 3b, 3c) to determine the correct one.

Step 5: Determine the subheading (6 digits)

Within the selected heading, apply GIR 6 to drill down to the correct 6-digit HS subheading. Compare subheadings at the same dash level.

Step 6: Determine the CN code (8 digits) and TARIC code (10 digits)

Extend to the EU-specific 8- and 10-digit codes using the TARIC database. These additional digits determine your specific duty rate and applicable measures.

Step 7: Cross-reference and validate

• Check the HS Explanatory Notes - the WCO's official guidance on what each heading covers
• Search the EBTI database for BTI decisions on similar products
• Consult the Classification Regulations - EU regulations that have classified specific products (binding legal instruments)
• Use our AI classification tool as a starting point and validation check

Step 8: Document your reasoning

Keep a written record of your classification logic (which GIRs you applied, which Explanatory Notes you consulted, which BTI decisions you referenced). This documentation is invaluable if customs authorities challenge your classification.

Common classification errors

Customs authorities across the EU report that these are the most frequent classification mistakes:

1. Classifying by end use alone - the HS classifies primarily by what a product IS (material, form, function at the time of importation), not what it will be used for, unless the heading text specifically mentions use
2. Ignoring Section and Chapter Notes - these have legal force and frequently override what seems like an obvious classification
3. Jumping to a subheading - always determine the correct 4-digit heading first, then drill down. You cannot start at the subheading level
4. Using outdated codes - the HS is updated every 5 years and the CN annually. Verify that your code is current
5. Relying on precedent without verification - just because you have always classified a product under a certain code does not mean it is correct. Regulations change, and initial errors propagate
6. Confusing product descriptions - a vague or inaccurate product description leads to wrong classification. Be precise about composition, function, and state
7. Neglecting composite goods rules - products made of multiple materials require careful GIR 3(b) analysis. Do not default to the most visible material