Sliding Scale Duty

Sliding Scale Duty is a tariff system in which the tariff rate adjusts inversely with the price of imported goods—the higher the price, the lower the rate; the lower the price, the higher the rate. It aims to stabilize domestic market prices and protect domestic industries. It is commonly used for imports of agricultural products (such as cotton and grain). When international market prices fall, the rate is raised to prevent low-priced goods from disrupting the domestic market; when prices rise, the rate is lowered to ensure supply. Notes: Sliding scale duty calculations are complex, requiring attention to trigger prices, rate ranges, and calculation formulas; companies should accurately declare the customs value to avoid incorrect tariff application or penalties due to misdeclaration. Differences from ad valorem and specific duties: ad valorem duties are levied at a fixed percentage, specific duties at a fixed amount, while sliding scale duty rates slide with price, combining features of both—more flexible but less transparent. Difference from tariff quotas: tariff quotas target quantity, while sliding scale duties target price. Foreign trade practitioners need to be familiar with the sliding scale duty policies of target countries to price reasonably and time imports appropriately.