Last reviewed: May 2026
Import Cost Guide provides estimates to help importers, e-commerce sellers and small businesses understand the possible landed cost of importing goods into the United Kingdom.
The estimates are designed for planning and comparison. They are not customs, tax or legal advice, and they should not be treated as a final customs declaration calculation.
What our calculators estimate
The UK Import Duty & Landed Cost Calculator estimates the main cost components involved in importing goods into the UK:
- Product value
- Shipping cost
- Insurance cost
- Other import costs entered by the user
- Estimated import duty
- Estimated import VAT
- Broker, courier or handling fees entered by the user
- Estimated landed cost
- Estimated cost per unit
- Estimated margin, when a selling price is entered
Basic landed cost formula
The calculator uses a simplified landed cost model for planning purposes.
Customs value
Product value + shipping + insurance + other import costs
Estimated duty
Customs value x duty rate
Import VAT
(Customs value + duty + broker or handling fee) x VAT rate
Landed cost
Customs value + duty + import VAT + broker or handling fee
Cost per unit
Landed cost / number of units
Estimated margin
Total selling value - landed cost
This model is intentionally transparent and editable. It is designed to help users understand the main cost drivers before placing an order or comparing sourcing options.
Official tariff data
When a 10-digit commodity code is entered, the calculator can try to use official UK tariff data from the UK Trade Tariff.
The official tariff lookup may provide duty and VAT information for the commodity code entered. If a simple rate can be detected, the calculator may use that rate automatically. If official data cannot be loaded or a simple rate cannot be extracted, the calculator uses the duty and VAT rates entered in the form.
Official source:
Commodity codes and classification
The commodity code is one of the most important inputs in an import duty estimate. A different commodity code can result in a different duty rate, VAT treatment, control requirement or additional measure.
The product description field is for reference only. It does not classify the goods automatically. The tariff lookup is based on the commodity code entered by the user.
Before relying on an estimate for a commercial shipment, users should verify that the commodity code matches the exact goods being imported.
Currency conversion
The calculator currently uses the exchange rate entered by the user. For GBP calculations, the exchange rate is 1. For EUR or USD calculations, users should enter the exchange rate to GBP that they want to use for the estimate.
Future versions may add official or regularly updated exchange-rate data. Until then, the exchange rate is an editable assumption.
Data caching
Official tariff responses may be stored for up to 24 hours. This helps make repeat calculations faster and reduces unnecessary requests to official sources.
If a recent tariff response is available, the calculator may use that stored response. If the stored response has expired, the calculator may try to refresh the data from the official source.
Why an estimate may differ from the final import cost
The final cost of importing goods can vary depending on factors that are not fully handled by the calculator, including:
- Final commodity code classification
- Origin of goods and rules of origin
- Preferential tariff treatment
- Anti-dumping duties, safeguards or trade remedies
- Quotas, suspensions or conditional measures
- Excise duties for goods such as alcohol, tobacco or fuel
- Courier, broker, storage or inspection fees
- Incoterms such as EXW, FOB, CIF, DAP or DDP
- Special rules for Northern Ireland or non-standard import scenarios
What this methodology does not cover
This methodology does not provide:
- Legal, tax or customs advice
- Definitive commodity code classification
- Customs declaration services
- Final HMRC liability calculations
- Broker or freight-forwarder quotes
How to use the estimate
The estimate should be used as a planning tool. It can help users:
- Understand the main cost components of an import
- Compare different order values or shipment costs
- Estimate landed cost per unit
- Check whether an import may still leave enough margin
- Identify when further verification is needed
Before placing a large order or making a commercial import decision, users should verify the final commodity code, duty rate, VAT treatment and customs requirements with an official customs authority or a licensed customs broker.
Corrections and updates
Import Cost Guide aims to make calculations transparent and easy to review. If you believe a formula, source or explanation should be corrected, please contact us through the contact page.
As the project evolves, this methodology page may be updated to reflect new calculators, additional countries, more detailed data sources or improved calculation logic.