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Customs Duty

Writer: Annkaren Wambui
Annkaren Wambui
7 days ago
2 min read

🔓Understand what customs duty is, how import duty is calculated, and why classification, origin and customs value all matter when determining the amount payable.


What does Customs Duty mean?

Customs duty is a charge imposed by a country or customs territory on certain goods entering or, in some cases, leaving its territory.

The rate and method of calculation depend on the applicable customs tariff and the characteristics of the goods.


In many systems, the duty payable depends on three key elements:

  1. What the goods are - their tariff classification.

  2. Where the goods originate - their applicable country of origin.

  3. What the goods are worth - their customs value.

Customs duty may be calculated as a percentage of value, as a fixed amount based on quantity, or using a combination of methods.



Don't confuse it with

Import VAT or Sales Tax

Customs duty is a customs charge. Import VAT, sales tax or similar consumption taxes are separate taxes, although customs authorities may collect them at importation.


Tariffs

"Tariff" can refer to the customs tariff system or schedule of rates. In everyday usage it is also commonly used to describe the duty itself.


Trade Remedies

Anti-dumping duties, countervailing duties and safeguard measures are additional trade-policy measures that may apply alongside ordinary customs duty.



Why does it matter?

Customs duty directly affects the landed cost of imported goods.

It can influence:

  • Product pricing

  • Procurement decisions

  • Supply-chain strategy

  • Profit margins

  • Cash flow

  • Customs compliance

  • Trade agreement utilisation

  • Sourcing decisions


The applicable rate may not be the standard rate. Preferential rates can apply where goods satisfy the requirements of a trade agreement or other preferential arrangement.

Additional duties or trade remedies may also apply depending on the product, origin and circumstances.



In practice

A business imports a product classified under a tariff code carrying a 10% standard duty rate.

The goods have a customs value of $50,000.

If no preferential treatment or additional measure applies, the basic customs duty would be:

$50,000 Ă— 10% = $5,000


However, the importer should not stop there.

It must also establish whether the goods qualify for preferential treatment and whether any additional duties, restrictions or trade remedies apply.

The same product classification can therefore result in different duty treatment depending on origin and the measures in force in the importing jurisdiction.



What should you check?

  • Is the tariff classification correct?

  • Is the customs value correctly established?

  • Is the declared origin supported by evidence?

  • Does a preferential tariff apply?

  • Are there additional duties or trade remedies?

  • Are quotas or tariff-rate quotas relevant?

  • Has the current tariff been checked rather than relying on an old rate?

  • Are the duties reflected correctly in the landed-cost calculation?



Customs Manager takeaway

Customs duty is rarely just a matter of looking up a percentage.

The amount payable can depend on the interaction between classification, origin, customs value and additional trade measures.


Go Deeper

Use The Knowledge Hub and The Customs Watch to stay informed about tariff changes, trade remedies and preferential trade developments.


Identify. Understand. Act. Build Expertise.


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