Glossary term

Antidumping Duty

An extra duty imposed on imports found to be sold below normal value, where that pricing injures a domestic industry.

A duty applied on top of the normal tariff where an investigation finds goods are being exported at less than their normal value in the exporter’s home market, and that the practice is injuring a domestic industry.

Two features regularly surprise importers. Antidumping duties are usually supplier-specific, so the rate depends on which exporter produced the goods rather than on the tariff line alone. And they can be applied retrospectively from the start of an investigation, which means goods imported in good faith can attract a duty announced afterwards.

Distinct from countervailing duties, which address subsidies rather than pricing.