Everything else hangs off this number
The tariff heading is the number customs authorities worldwide use to identify your product. The duty your customer pays, whether a licence is needed, which certificates are demanded, whether a quota applies, whether a trade agreement bites and which market data you can look up all depend on it. It is not a formality: it is the key to the whole transaction.
The first six digits are universal — the Harmonized System, maintained by the World Customs Organization — and practically everyone uses them. Beyond the sixth, each territory adds its own: the European Union goes to eight in the Combined Nomenclature and ten in TARIC, and the United States to ten in the HTS. Your product’s first six digits are the same in Seville and in Shanghai; the ones after that are not.
And classifying is your responsibility. Not your forwarder’s, who only transcribes what you tell them, nor your supplier’s. If the code is wrong, the declarant answers for it — and on an export, that is you.
How you get to the code
The order matters: working from the general down to the specific avoids half of all classification errors.
- Describe the product as it is, not as it is soldThe material it is made of, the function it performs, the form it is presented in, how far it is processed and what it is used for. Customs classifies objects, not brands: “premium line” classifies nothing, “extra virgin olive oil bottled in glass of less than one litre” does.
- Locate the chapterThe first two digits. The tariff is broadly ordered from natural to manufactured: low chapters are agricultural products, high ones machinery and vehicles. Start there and work down.
- Read the chapter and section notesIt is the step almost nobody takes and the one that resolves almost every doubt. The legal notes say explicitly what is included and what is excluded, and they have legal force: they override whatever a heading title seems to suggest.
- Go down to heading and subheadingFour digits and then six. At each level pick the most specific description, not the one that sounds best. A specific description always beats a generic one.
- Complete to eight or ten for that destinationThe national digits are set by the destination country. For selling into the European Union, TARIC; for the United States, the HTS. The same product can have different endings in each.
- Write down whyKeep a one-line note with your reasoning and the legal note you relied on. Two years from now, in a review, that line is the difference between defending the code and redoing the work.
When two headings both fit
The General Rules of Interpretation are the official tie-breaker, and they apply in order. These are the three that resolve most real cases.
| Situation | What governs | Example |
|---|---|---|
| One description is more specific than the other | The more specific one wins | An electric shaver goes to its own heading, not to “electromechanical appliances” in general |
| A product of several materials or components | The material or component giving it its essential character wins | A leather case with scissors is classified by the use of the set, not by the leather |
| No rule breaks the tie | The highest-numbered of the competing headings wins | It is the last resort, and the earlier rules have to be exhausted first |
Sets put up for retail sale are classified as a single product, by the component that gives them their essential character.
When the doubt is worth money
If a high duty, a quota or a licensing requirement depends on the classification, and you have reasonable doubt between two codes, there is a formal mechanism: Binding Tariff Information (BTI). It is a decision issued by the customs administration, it binds every customs office in the Union and it protects you while it is in force.
It takes weeks and has to be argued, so it is not requested for every reference. It is requested when the amount at stake justifies it or when you are going to repeat that transaction many times. For everything else, a well-reasoned, documented code is enough.
Classification errors that cost money
- Classifying by the commercial nameThe tariff knows nothing about your brands or your ranges. Look for material, function and presentation; nothing else classifies.
- Stopping at six digits for a specific destinationSix digits are universal, but duty, quota and measures hang off the national digits. With six you cannot know what your customer will pay.
- Picking the code with the lowest dutyCustoms can compare too. A reclassification at destination means paying the difference for previous years, plus interest, plus a penalty.
- Using different codes on the invoice and on the declarationIt is an obvious documentary contradiction and one of the fastest ways to trigger a review.
- Never reviewing it againThe nomenclature is updated periodically. A code that was correct five years ago may have disappeared or been split.