Tariff can be defined as a compulsory levy on

A tariff is a compulsory levy imposed by a government on imported goods only. This means that when products are brought into a country from abroad, a tax or duty is charged by the government on these goods. Tariffs are typically used to protect domestic industries from foreign competition by making imported goods more expensive, encouraging consumers to buy locally produced items. They can also be a source of revenue for the government. By increasing the cost of imports, tariffs influence the prices and choices available to consumers, often making domestic goods more appealing. In summary, tariffs are specifically associated with imports, not exports, foreign exchange earnings, or foreigners working in a particular country.