Arm’s-length principle is still being called into question

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Arm’s-length principle is still being called into question

At the OECD’s public consultation in Paris this week, the arm’s-length principle was called into question a number of times by speakers.

While even those most opposed to the principle admitted they did not think it should be ignored completely, the general consensus was that if taxpayers are going to diverge from the principle, they should provide strong arguments as to why they have done so, rather than hiding behind definitional issues in transfer pricing guidance.

Richard Murphy, speaking on behalf of the BEPS Monitoring Group, said he felt there is a prevailing feeling that transfer pricing documentation exists to defend the arm’s-length principle.

“I’m not saying arm’s-length doesn’t have its use but if it worked properly we wouldn’t be here.”

In his closing remarks, Will Morris, chairman of BIAC’s (business advisory arm to the OECD) tax and fiscal policy committee said:

“I believe, in many areas, that the arm’s-length standard continues to work, and I also believe that there are good reasons for it being used as the default, or the starting point, in all areas.”

“However, where it doesn’t work, we shouldn’t try to cover that up by saying it does and then coming up with yet another ad hoc “improvement” to the arm’s-length-standard.”

Morris added that there may, in some cases, be very good reasons for diverging from the arm’s-length standard.

“But, if we’re going to do that, we should do it very clearly, and with full agreement from a broad range of countries that this is a different taxing principle. We do ourselves no favours by classifying it as just another arm’s-length standard method that may or may not work in a hierarchy of methods that businesses and different countries may choose, or not, to adopt. That only leads to more and more double taxation as countries go their different ways. We shouldn’t necessarily be scared of special methods. The arm’s-length-standard is the default, and the case needs to be made for deviating from it. But if that case can be made, then let’s do it transparently, and with a clear articulation of the taxing principle, so that the desired outcome is clear to all parties.”

Many tax treaties make allowances for formulary apportionment and the profit split method, so alternatives to the arm’s-length standard are available for taxpayers.

more across site & shared bottom lb ros

More from across our site

Our first instalment features analysis of Deloitte’s landmark EMEA merger, Donald Trump’s Supreme Court tariff showdown and Venezuela’s tax evolution
While some believe it could have a positive effect on the wider advisory landscape, others argue that HMRC’s ‘red tape’ exercise won’t deter bad actors
The political optics of the US’s carve-out deal are poor, but as the Fair Tax Foundation’s Paul Monaghan writes, it preserves pillar two’s guiding ethos
The big four firm reportedly sent ‘threatening’ correspondence to Unity Advisory over its hiring of ex-PwC partners; plus tax recruitment news from the week
Tom Goldstein, who was represented by US law firm Munger, Tolles & Olson, denied wilfully cheating on his taxes and blamed errors on his staff
Multinationals face rising TP scrutiny as global rules diverge. As Daniel Moalusi argues, strong, consistent documentation is now essential to minimise audit risk and protect tax positions
The profession is fundamentally restructuring itself around what tax and accounting work should be, a Thomson Reuters leader told ITR
The big four firm is consolidating 16 entities across the region to create a single 6,000-partner behemoth
Brazil’s tax reform unifies consumption taxes to simplify rules, centralise administration and reduce legal uncertainty
The ever-expansive firm has once again attracted a former ‘big four’ talent to lead the new offering
Gift this article