Import Duty

What Is an Import Duty?

An import duty is a tax imposed by a national government on products entering the country from another country. The duty is typically collected by customs authorities at the border or port, and it is paid by the importer before the goods can be released for sale. Its purpose is usually to raise government revenue, to make imported goods more expensive so that domestically produced goods are more competitive, or both. Import duties are one of the oldest forms of taxation and remain a common tool of trade policy.

How It Works

Most import duties are either ad valorem or specific. An ad valorem duty is a percentage of the goods' declared value, so a 10 percent duty on a product valued at 1,000 units of currency adds 100 units of duty. A specific duty is a fixed charge per unit, such as a set amount per kilogram or per item, regardless of price. Some countries combine the two. The rate usually depends on the product's classification under the Harmonized System, an international product coding system used by most trading nations to describe goods consistently. Duty rates can differ by country of origin, and trade agreements may reduce or eliminate them for qualifying goods.

Import duty is often calculated on the customs value of the goods, which generally includes the purchase price plus certain costs such as shipping and insurance up to the point of entry. Other charges, such as sales or value-added taxes, may also apply on top of the duty.

Why It Matters to Investors

Import duties can affect company profits, especially for businesses that rely on imported components or raw materials. A higher duty can raise costs, which may be absorbed by the company, passed on to customers, or both. Duties can also shift demand between domestic and foreign producers, so an investor following a particular industry may watch for changes in tariff policy. Companies that export may face retaliatory duties in other markets. Because duty rates can change through legislation or trade negotiations, these charges are a factor in the broader economic outlook for affected sectors.