Ad Valorem Tariffs vs. Specific Tariffs: Differences

What is Ad Valorem Tariffs

An ad valorem tariff is a tax levied on an imported good as a percentage of its value. The term “ad valorem” is Latin for “according to value.”

• Calculation: It is calculated based on the monetary value of the imported product. The formula is:
  • Tariff Amount=Tariff Rate × Value of the Good
• Example: If a country adds a 10% tariff on imported cars, a car worth $20,000 would have a $2,000 tariff. This is 10% of $20,000. A more expensive car valued at $50,000 would incur a higher tariff of $5,000.

Advantages:

• Maintains Proportionality: The tariff amount changes with the price of the good. This means that more expensive items have a higher tax. This is often seen as more equitable.
• Adapts to Inflation: As prices go up due to inflation, the money from an ad valorem tariff also increases. This keeps its protective effect.

Disadvantages:

• Valuation Disputes: Finding the true value of an imported good can be complicated. This can cause disagreements or even fraud, like when importers under-invoice to pay a lower tariff.
• Less Protective During Price Drops: If the price of an imported good goes down, the tariff revenue also drops. This gives less protection to local industries when they need it the most.

What is Specific Tariffs

A specific tariff is a fixed fee levied on an imported good based on its quantity, such as weight, volume, or number of units.

• Calculation: It is a set amount per unit of the imported product. The formula is:
  • Tariff Amount = Specific Tariff Rate × Number of Units
• Example: A country can set a tariff of $1,000 on each ton of imported steel. This applies no matter the steel’s price. So, 5 tons of imported steel would face a tariff of $5,000.

Advantages:

• Simplicity and Certainty: These tariffs are easy to calculate and administer. Customs officials only need to check the amount of goods, not their value. This helps reduce chances of fraud.
• More Protective During Price Drops: When foreign producers lower their prices to gain market share, the specific tariff remains unchanged. This can provide a more stable level of protection for domestic industries.

Disadvantages:

• Regressive Nature: A fixed fee has a disproportionately larger impact on cheaper goods than on more expensive ones. A $10 tariff on shoes is a bigger percentage for a $20 pair (50%) than for a $200 pair (5%).
• Erosion by Inflation: When prices rise, a fixed tariff amount becomes less important over time. This reduces its protective effect and the real revenue it brings in.

In practice, countries may also use compound tariffs, which include both an ad valorem and a specific component. For instance, a tariff on a shirt might be “5% of its value plus $0.25 per shirt.”