Few instruments have shaped the practical reality of international taxation as much as the OECD Transfer Pricing Guidelines. Since their original adoption in 1995, the guidelines have quietly shaped trillions of dollars’ worth of cross-border commerce. By operationalising the arm’s length principle, the guidelines play a pivotal role in the global tax architecture.

Even though the guidelines are not legally binding instruments, they have become the benchmark for transfer pricing. Since they retain a strong “compatibility advantage” across jurisdictions, they are seen as the global language of transfer pricing.

They exemplify a simple idea: transactions between related enterprises within a multinational group should be priced as though they had been negotiated between independent parties, also known as the arm’s length principle.