# Tariff classification

*Last updated: 2026-06-26*

> Tariff classification is the systematic assignment of a good to a defined category within a tariff or rate structure, from which applicable duty rates, freight rates, and surcharges are derived.

Tariff classification is the systematic assignment of a good to a defined category within a tariff or rate structure, from which applicable duty rates, freight rates, and surcharges are derived. In customs, this means allocating an HS code under the World Customs Organization's Harmonized System; in freight forwarding, it means mapping a shipment to rate classes based on weight, volume, commodity type, dangerous goods classification, and origin-destination pair. Correct classification is a prerequisite for compliant customs clearance and accurate invoicing of transport services. Errors affect billing directly and can trigger duty reassessments or penalties from customs authorities. Unlike simple rate calculation, tariff classification is a rules-driven process whose outcomes are legally binding.

**Source:** [https://www.wcoomd.org/en/topics/nomenclature/overview/what-is-the-harmonized-system.aspx](https://www.wcoomd.org/en/topics/nomenclature/overview/what-is-the-harmonized-system.aspx)

## Quick Facts

| Property | Value |
|---|---|
| Term | Tariff classification |
| Language | EN |
| Word count | 112 |
| Last updated | 2026-06-26 |
| Source | https://www.wcoomd.org/en/topics/nomenclature/overview/what-is-the-harmonized-system.aspx |

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