## Facts

- The case involved a sale-and-leaseback arrangement for computer equipment between Barclays Mercantile Business Finance Ltd (Barclays) and another party.
- Barclays purchased the equipment and leased it back to the seller, structuring the transaction for financial benefit to both parties.
- The arrangement's classification as a taxable supply under VAT law was at issue.
- The House of Lords examined both the legal structure and the actual economic purpose of the deal.

## Issues

1. Whether the sale-and-leaseback deal constituted a taxable supply under VAT law.
2. Whether statutory interpretation should focus on the transaction’s legal form or its economic effect.
3. What approach should be adopted for interpreting complex financial transactions under tax statutes.

## Decision

- The House of Lords held that the transaction was a financing arrangement, not a taxable supply of goods under VAT law.
- The ruling established that, in determining the application of tax statutes, courts must analyze the actual economic outcomes and genuine business purposes of arrangements, not just their formal legal structure.
- The decision clarified the steps to be followed when assessing whether a transaction falls within a statutory provision.

## Legal Principles

- The decision emphasized the purposive approach to statutory interpretation, prioritizing the statute's main goal and economic substance over strict legal form.
- Courts should identify the real-world effects and valid business reasons behind transactions when applying tax law.
- Legal analysis should ensure that tax avoidance schemes are evaluated based on their genuine economic intent rather than artificial structures.
- The refined purposive approach applies broadly, guiding courts in interpreting statutes with attention to legislative intent and practical effect.

## Conclusion

Barclays Mercantile Business Finance Ltd v Mawson [2005] 1 AC 684 is a leading authority on the purposive approach to statutory interpretation, requiring courts to assess the economic reality and intent of transactions—particularly in VAT contexts—ensuring that laws are applied in line with their true legislative purpose.