HS codes and customs classification for medicines

Every medicine that crosses a border is declared under a tariff code. The code decides the duty rate, whether licences or permits are checked at the border, which statistics the shipment feeds, and often how quickly customs releases it. A code that differs between the invoice, the permit and the import declaration is a common reason for a held shipment.

This guide explains how the Harmonized System (HS) works for medicines, walks through chapter 30, and points out the classification questions that come up most in specialty and named-patient supply. It is general guidance. The binding answer for any product comes from the customs authority of the importing country.

How an HS code is built

The Harmonized System is maintained by the World Customs Organization (WCO). It identifies more than 5,000 commodity groups with six-digit codes, is used by more than 200 countries and economies, and covers over 98 percent of goods in world trade. A code reads from broad to narrow:

• the first two digits are the chapter, for example 30 for pharmaceutical products
• the first four digits are the heading, for example 3004
• all six digits are the subheading, for example 3004.90

Countries add more digits for their own tariffs and statistics. India uses eight-digit ITC(HS) codes, published by the Directorate General of Foreign Trade in its import and export policy schedules. Other countries use eight or ten digits, so two national codes for the same product often share the same first six digits but differ after that.

Classification follows legal rules, not product names. The heading texts and the section and chapter notes come first, and the WCO's Explanatory Notes guide interpretation. The WCO updates the HS every 5 to 6 years. The current edition is HS 2022, and the HS 2028 edition enters into force on 1 January 2028.

Chapter 30 at a glance

The table summarises the headings of chapter 30 in the 2022 edition.

Questions that cause misclassification

Measured doses or bulk

The split between 3003 and 3004 turns on presentation. Tablets, capsules, vials, ampoules, prefilled syringes and patches are measured doses, and a pack made up for sale to the user is a retail pack. Both fall in 3004. Heading 3003 only covers mixed medicaments that are not presented that way, such as a bulk blend shipped for filling elsewhere. A single active ingredient in bulk is a different case. Note 3 to the chapter treats goods of chapters 28 and 29 as unmixed products, and such bulk chemicals are generally classified in those chapters rather than in chapter 30.

Biologics and immunological products

Note 2 to chapter 30 defines immunological products for heading 3002. The list includes monoclonal antibodies, antibody fragments and conjugates, interleukins, interferons, chemokines, certain tumour necrosis factors, growth factors, hematopoietins and colony stimulating factors. These stay in 3002 even when finished and packed, and a finished product in measured doses or retail packs falls in 3002.15 rather than 3004. Using a 3004 code for a monoclonal antibody is a common error.

Vaccines for human medicine have their own subheading, 3002.41, and cell therapy products fall in 3002.51. Insulin is not an immunological product in this sense. Finished insulin in doses or retail packs falls in 3004.31.

Clinical trial supplies

Note 4(e) brings placebos and blinded or double-blinded clinical trial kits for a recognised clinical trial into heading 3006, provided they are put up in measured doses, even if they contain active medicaments. Their subheading is 3006.93. Open-label comparator packs bought for a trial are classified as the medicine itself, usually in 3004 or 3002. Comparator sourcing for clinical trials covers the supply side.

Antimalarials and named actives

Subheadings 3003.60 and 3004.60 cover medicaments containing listed antimalarial actives, such as artemether, artesunate, lumefantrine and chloroquine, as set out in subheading note 2. These lines are tracked separately in many tariffs and statistics.

Products outside chapter 30

Note 1 excludes several products that look medicinal, including foods and food supplements, nicotine replacement products for quitting tobacco, and diagnostic reagents of heading 3822. Opacifying preparations for X-ray examinations, and diagnostic reagents designed to be administered to the patient, stay in heading 3006.

National codes, duty and tax

Once the six-digit subheading is settled, the national tariff of the importing country gives the full code and the rates. Duty on finished medicines varies. The country import guides on this site show 0 percent duty on HS 3004 for many markets, such as the United Kingdom, Kenya and the Gulf states, and positive rates elsewhere, such as about 6 percent in Peru and up to 14 percent on some lines in Brazil, based on World Bank WITS data. VAT, sales tax and levies are separate and are often reduced or zero for medicines. The landed-cost calculator brings these figures together for a given country.

On the Indian side, the exporter declares the eight-digit ITC(HS) code on the shipping bill and the commercial invoice. The importer's broker then applies the destination's national code. Because countries can adopt a new HS edition at different times, codes may briefly differ even at six digits, which is worth checking around 2028.

Getting the code right, step by step

1. Start from the product facts. Note the dosage form, presentation, active ingredients, whether the product is an immunological product or vaccine, and whether it is a blinded trial kit.
2. Read the chapter notes and heading texts. Check Note 1 for exclusions, Note 2 for immunological products and Note 4 for heading 3006.
3. Choose the six-digit subheading. Use the table above as a starting point, not a substitute for the legal text.
4. Find the national code. The destination broker should confirm the full national code from the current tariff.
5. Use the same code everywhere. Put it on the proforma and commercial invoice, and check it against the import permit if the permit lists one.
6. Ask for a ruling when in doubt. Many customs administrations issue advance classification rulings, which are worth requesting for repeat shipments of a hard-to-classify product.
7. Recheck before 2028. Review codes once the HS 2028 changes appear in the destination's tariff.

A correct code cannot fix a missing permit, but a wrong one can hold an otherwise complete shipment. Pharma export documents explained shows where the code appears in the document pack, and the document checklist lists what each destination asks for.