How to estimate the landed cost
For a first-pass estimate, add the goods value, freight and insurance to create a simplified customs value. Customs duty is then calculated using the applicable tariff rate. Import VAT is usually calculated on a wider value that includes the customs value and duty, plus certain incidental costs.
Commodity classification comes first
The tariff rate depends on the 10-digit commodity code used for the goods. Search by description above, then compare the returned wording with the actual material, function and construction of the product. A similar-sounding code can lead to a different duty rate or control.
Origin is not the same as dispatch country
Preferential tariff treatment depends on the customs origin of the goods and the relevant agreement or preference scheme, not simply the country the parcel was sent from. BorderMath sends the selected origin to the tariff endpoint to filter measures, but you should still check any origin rules and evidence requirements before claiming preference.
What to verify before declaring
- the commodity code is correct and declarable;
- the origin meets any preference rule you plan to claim;
- any quota, anti-dumping, safeguard, excise or additional-code measure;
- licences, certificates or documentary conditions;
- the customs value and import VAT value used on the declaration.