What this is
TariffCodeCheck lets importers, exporters, e-commerce sellers and developers look up Harmonized System codes and see how the United States and the United Kingdom treat each subheading, side by side. Search accepts plain product names, not just the legal wording. Everything, including the JSON API, is free with no registration.
Data sources and licenses
| Data | Source | License |
|---|---|---|
| US HTS codes, descriptions and duty rates | U.S. International Trade Commission, Harmonized Tariff Schedule | US government work, public domain |
| EU Combined Nomenclature codes and descriptions | Eurostat CN vocabulary via data.europa.eu (© European Union) | Commission Decision 2011/833/EU (reuse with attribution). EU duty rates are consulted on the official TARIC service. |
| UK commodity codes and descriptions | UK Integrated Online Tariff (HMRC) | Contains public sector information licensed under the Open Government Licence v3.0 |
| HS structure (sections, chapters) | As enacted in the national schedules above | Sourced from the national legal instruments |
The dataset currently holds 6,815 HS subheadings and 21,279 UK commodity lines (UK tariff version v4.0.1596), refreshed weekly. Last build: 2026-09-10.
What this is not
Not legal advice and not a binding classification. The correct code for a specific product is decided by the customs authority of the importing country; free binding-ruling services exist in the US (CBP), UK (HMRC ATaR) and EU (BTI). We show the published schedules faithfully and link to the official consultation pages for live duty measures.
Who builds it
TariffCodeCheck is built and operated in Cyprus by IPNOVA Systems Ltd, the company behind a family of free lookup tools including SwiftCodeCheck, CardBinCheck and PostalCodeCheck. Contact: [email protected].