Recent industry discussions have highlighted increasing scrutiny around customs valuation practices for goods imported into the UK, particularly within B2C and B2B2C supply chain models.

At the centre of this is a critical principle: the requirement to declare the “last sale” price as the customs value.

Understanding the “Last Sale” Principle

For goods imported into the UK, HMRC requires that the customs value reflects the price actually paid or payable for the goods when sold for export to the UK.

In practice, this means:

• The final commercial transaction that triggers the movement of goods into the UK must be used

• Earlier transactions within the supply chain are not acceptable for customs valuation purposes

Where multiple transactions exist – for example, where goods are sold between entities before being sold to a UK customer – HMRC expects the final sale to the UK buyer to be declared.

Using an earlier “intercompany” or upstream sale value is generally treated as undervaluation, which can lead to significant compliance risks.

Application in eCommerce and Pre-Sold Goods

This principle is particularly relevant in modern eCommerce models, where goods are often:

• Pre-sold to UK consumers before import

• Shipped directly from overseas locations

• Delivered via third-party logistics providers without additional UK-based handling

In these scenarios, the consumer-facing sale is typically considered the transaction that triggers importation into the UK.

As a result, the customs value should reflect the price paid by the end customer, not an earlier transfer price within the supply chain.

Valuation Methods and Common Misinterpretations

Confusion can arise where businesses apply alternative valuation methods, such as where goods are treated as movements of own stock.

However, where goods are already sold prior to import, the use of fallback valuation methods (such as Method 6) may not be appropriate if a valid transaction value exists.

Misapplication of valuation methods can result in:

• Incorrect declarations

• Underpayment of duties and VAT

• Increased audit exposure

Compliance Risks and Financial Exposure

HMRC has made its position clear through guidance and examples: the use of earlier sale values in a chain of transactions is not aligned with UK customs valuation rules.

The consequences of non-compliance can be significant:

• Reassessment of customs value

• Recovery of underpaid duties and import VAT

• Interest charges

• Financial penalties

Additionally, where indirect representation is used, both the importer and the customs agent may be jointly and severally liable for any customs debt arising from undervaluation.

A Growing Area of Enforcement

Customs valuation has become an increasing focus area for authorities globally, particularly as cross-border eCommerce volumes continue to rise.

High-profile investigations in recent years have demonstrated the scale of potential exposure where valuation methodologies are challenged, reinforcing the importance of aligning with current regulatory expectations.

Key Considerations for Businesses

Businesses importing into the UK should take proactive steps to:

• Review current valuation methodologies

• Ensure alignment with the “last sale” principle

• Validate data flows between sales platforms and customs declarations

• Confirm the correct use of valuation methods across all shipment types

Clear internal processes and accurate data are essential to ensuring compliance.

Supporting Compliance in a Changing Landscape

As global supply chains evolve and regulatory scrutiny increases, customs valuation is no longer a back-office consideration – it is a critical component of cross-border strategy.

Ensuring the correct declaration of value is fundamental not only to compliance, but also to maintaining efficient clearance processes and protecting customer experience.

Businesses that take action now to review and strengthen their valuation approach will be better positioned to navigate ongoing changes in international trade.