HS codes explained: what they are and how to find yours

Every customs form asks for an "HS code" or "tariff code", and every customs officer reads it before looking at anything else on your declaration. Get it right and your parcel flows through; get it wrong or leave it blank and you invite delays, wrong tax charges, or an inspection. Here is the system in plain terms.

What an HS code actually is

HS stands for Harmonized System, the product classification standard maintained by the World Customs Organization. Over 200 countries use the same first six digits to describe any product on Earth. After the shared six digits, each country adds its own digits for national tariff rates: the US uses ten (the HTS), the EU uses eight to ten (CN and TARIC), and so on.

How to read one, with a real example

Take 6104.62, the code for women's or girls' knitted cotton trousers:

• 61: Chapter, knitted or crocheted clothing
• 6104: Heading, women's trousers, knitted
• 6104.62: Subheading, of cotton

That layered hierarchy is why "the same code exists everywhere" up to six digits: a parcel declared as 610462 lands in the same category in Brazil, Japan or Germany. The remaining national digits then decide the exact duty rate.

Where to find the right code (free official tools)

• United States: the HTS search at hts.usitc.gov
• European Union: the TARIC database on the European Commission trade site
• United Kingdom: the Trade Tariff tool on gov.uk
• Most other countries: the national customs authority publishes the same lookup under its tariff portal

Once you have the code, calculating the duty is the next step.

What happens with the wrong code, or no code

Customs will not trust a vague description. If the code is missing or mismatched with the description ("electronics" for a parcel that also contains batteries), one of these happens:

• The parcel is flagged for manual inspection and delays, adding days or weeks.
• The officer assigns a classification themselves, often the one with the highest defensible duty rate.
• A wrong code on a restricted item can turn a delay into a seizure.

Frequently asked questions

Is the HS code the same in every country?

The first six digits, yes. That is the international standard. The extra digits are national, so "the 10-digit US code" and "the 8-digit EU code" for the same product share the first six.

Who writes the code: me or the seller?

The sender declares it. As the buyer you rarely choose anything, but when a parcel is held for classification questions, knowing the correct code helps you respond to the carrier's request quickly instead of losing weeks.

Do gifts need an HS code?

Customs forms technically require one even for gifts, and a correct code plus honest value makes gift parcels slide through faster. Vague gift declarations are a common inspection trigger.

Related guides

• Using the code to calculate import duty
• Items that are restricted regardless of code