US: New horizons for dispute resolution under pillar one’s Amount A

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

Copyright © Legal Benchmarking Limited and its affiliated companies 2025

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

US: New horizons for dispute resolution under pillar one’s Amount A

Sponsored by

sponsored-firms-kpmg.png
The blueprint offers proposals in the area of tax certainty and dispute resolution

Mark Martin and Thomas Bettge of KPMG in the US describe the Amount A tax certainty process in the recently released pillar one blueprint and explore how it might work in practice.

On October 12, the OECD released its report on the pillar one blueprint, which was approved by the Inclusive Framework on BEPS and represents the latest stage in multilateral efforts to address the tax challenges of the digitalisation of the economy. While considerable technical work remains to be completed, and the deadline for political agreement on the blueprint – along with its counterpart under pillar two – has been pushed back to mid-2021, the blueprint offers many important and innovative proposals, not least in the area of tax certainty and dispute resolution.



The focus of the blueprint’s tax certainty chapter is the prevention and resolution of disputes regarding Amount A, which allocates taxing rights on a portion of in-scope companies’ profits to market jurisdictions. Amount A is intrinsically multilateral: for any given multinational enterprise (MNE), profits may be allocated away from several countries and spread among a large number of market jurisdictions. The work on dispute resolution for Amount B, which would provide a standardised return for baseline marketing and distribution activities, is considerably less developed; the blueprint simply states that mandatory binding dispute resolution would apply to an Amount B dispute once existing procedures were exhausted.



The blueprint provides that Amount A would be administered through a coordinated system, in which an MNE would file a self-assessment return and documentation package with its lead tax administration, which would proceed to share the return and documentation with all affected tax administrations through an exchange of information mechanism. In the absence of any election by the MNE, all affected tax administrations would then be free to audit the Amount A return. In many cases, sorting through any disputes that arise on a country-by-country basis, or by invoking bilateral treaty relationships where they exist, could prove unworkable.



To avoid individual audits, MNEs could opt into an early certainty process under the blueprint. This involves three key stages: an optional initial review by the lead tax administration, review by an advisory review panel comprised of affected tax administrations, and a quasi-arbitral proceeding by a determination panel using a last best offer approach. Disputes could be resolved at any stage, but the inclusion of the determination panel ensures that mandatory binding dispute resolution provides a backstop to the process.



The two-tiered panel process appears intended to address the concerns of developing countries and other stakeholders regarding the use of mandatory binding arbitration. By interposing an advisory review panel comprised of a subset of the tax administrations themselves before a case is sent to the determination panel, the Amount A tax certainty process increases the likelihood that consensus may be reached without the need for an outside decision maker. While the composition of the determination panel remains to be determined, the suggestion that current or former tax officials may serve as panellists also appears likely to address some tax administrations’ concerns.



By and large, the complexities baked into the process are likely necessary in view of the technical and political challenges associated with designing an appropriate tax certainty process for Amount A. Yet the success of the system will probably ultimately depend not on these intricacies, but on MNEs’ and tax administrations’ ability to avoid them in a significant volume of cases.



This, in turn, requires that all participants approach Amount A early certainty cases with a cooperative attitude: MNEs should be prepared to make frank and timely disclosures, and tax administrations should be willing to accept the work and recommendations of their colleagues in other countries except where they have serious concerns. Given the levels of investment required by the tax administrations in panel cases, as well as the time required to conclude such cases, the optional initial review by the lead tax administration appears likely to be key to efficiently resolving lower risk cases, but that will only work if other tax administrations are willing to accept the lead tax administration’s recommendations.



The Amount A tax certainty process is not perfect. More work is needed in some areas, particularly around timing. But it does offer up a new take on dispute resolution that, if approached by tax administrations and MNEs alike with the right spirit, could provide a workable and much-needed structure for handling multilateral controversies, which could have ramifications beyond the confines of Amount A.





Mark Martin

T: +1 713 319 3976

E: mrmartin@kpmg.com



Thomas Bettge

T: +1 713 319 2173

E: tbettge@kpmg.com

more across site & shared bottom lb ros

More from across our site

Canadian Prime Minister Mark Carney and US President Donald Trump have agreed that the countries will look to conclude a deal by July 21, 2025
The firm’s lack of transparency regarding its tax leaks scandal should see the ban extended beyond June 30, senators Deborah O’Neill and Barbara Pocock tell ITR
Despite posing significant administrative hurdles, digital services taxes remain ‘the best way forward’ for emerging economies, says Neil Kelley, COO of Ascoria
A ‘joint understanding’ among G7 countries that ‘defends American interests’ is set to be announced, Scott Bessent claimed
The ‘big four’ firm’s inaugural annual report unveiled a sharp drop in profits for 2024; in other news, Baker McKenzie and Perkins Coie expanded their US tax benches
Representatives from the two countries focused on TP as they met this week to evaluate progress under a previously signed agreement – it is understood
The UK accountancy firm’s transfer pricing lead tells ITR about his expat lifestyle, taking risks, and what makes tax cool
Dolphin Drilling intends to discuss the final liability amount and manner of settlement with HM Revenue and Customs
Winning the case against the 20% VAT imposition was always going to be an uphill challenge for the claimants, UK tax advisers argue
A ‘paradigm shift’ in Chile’s tax enforcement requires compliance architecture built on proactive governance, strategic documentation and active monitoring of judicial developments
Gift this article