Press Article - Initially published on AGEFI

The art of efficiently resolving transfer pricing disputes – Luxembourg available dispute resolution procedures

  • October 16, 2024

Introduction

With tax authorities intensifying their scrutiny on inter-company transactions involving Luxembourg entities, the risk of potential double taxation has increased significantly over the last few years.

Successfully navigating these challenges requires more than just technical expertise—it requires the art of balancing compliance, strategy, and negotiation. Transfer pricing disputes often involve complex international regulations and the differing perspectives of multiple jurisdictions. The particularity of cross-border taxation makes resolving these challenges a sophisticated exercise that demands a nuanced approach.

This combination of technical proficiency and strategic finesse is what elevates transfer pricing dispute resolution from an administrative task to an art form, especially in the context of Luxembourg’s dynamic and evolving tax landscape.

Navigating these complexities requires careful considerations from taxpayers. There are different procedures available to resolve transfer pricing disputes.

What is an international dispute resolution procedure?

A dispute resolution procedure is a strategic practice designed to resolve international tax disputes aiming at providing relief from double taxation. Various mechanisms, such as the Mutual Agreement Procedure (MAP) provided for the framework of the OECD Model Tax Convention (OECD MTC), the EU Arbitration Convention1, and the EU Directive on tax dispute resolution2, fall under this umbrella of procedures.

1 Directive 90/436/EEC of 23 July 1990.

2 Council Directive (EU) 2017/1852 of 10 October 2017.

When can a dispute resolution procedure be initiated?

Taxpayers can initiate a request for a dispute resolution procedure if they believe that they are being taxed in a manner that is not in accordance with the provisions of an applicable tax treaty and where there is a potential risk of double taxation. The request is submitted to the Competent Authority (CA) in the country where a double taxation arises.

Taxpayers must be aware of the specific regulations governing the procedure they are relying on as each has unique documentation requirements, deadlines, and escalation procedures that need to be strictly followed.

The CAs of the involved jurisdictions consult and negotiate to resolve (or not) the dispute. This typically involves the exchange of information and positions on the matter. Depending on the applicable framework, the resolution could take place under a MAP based on the OECD MTC, the EU Arbitration Convention, or the EU Directive on tax dispute resolution.

What is the legal basis for a transfer pricing dispute?

The legal framework supporting a transfer pricing dispute is established through multiple sources, each providing a structured pathway for resolving disputes and ensuring fair treatment across borders. These sources include bilateral tax treaties, EU directives, and local administrative guidelines, such as:

  • The mutual agreement articles of bilateral tax treaties, usually based on Article 25 of the OECD MTC and possibly covered by the Multilateral Instrument (MLI);
  • EU Arbitration Convention (Convention 90/436/EEC); and
  • EU Directive on tax dispute resolution mechanisms (Council Directive (EU) 2017/1852).

The role of transfer pricing dispute resolutions in Luxembourg: Comparing alternatives

Luxembourg offers several alternatives to address international tax disputes, each characterised by distinct features and procedural aspects. Here’s a comparison of the available alternatives in Luxembourg:

  Scope

Key Features

Resolution Timeline

Next Steps if No Resolution

Bilateral tax treaties

Cover a wide range of tax disputes including transfer pricing.

Based on Article 25 of the OECD Model Tax Convention.

No strict timeline, typically aims for 2 years.

If the CAs cannot reach an agreement, the case may be unresolved, potentially leading to arbitration if the treaty includes an arbitration clause. If tax treaty is covered by the MLI, the case will be resolved in the mandatory binding arbitration.

EU Arbitration Convention

Specific to transfer pricing disputes within the EU, focused on eliminating double taxation.

Embodies the arm’s length principle and outlines the process for resolving disputes related to transfer pricing adjustments.

Unlike bilateral tax treaties, the EU Arbitration Convention includes a mandatory arbitration phase if the initial negotiations fail to resolve the dispute within 2 years.

The advisory commission must deliver its opinion within six months, and the CAs must reach a final decision based on this opinion within six months after receiving it.

EU Dispute Resolution Directive

Applicable to tax disputes arising from EU tax treaties, covering a wide range of issues, including transfer pricing and other cross-border disputes

Structured process for resolving tax disputes, including the possibility of mandatory binding arbitration if the dispute cannot be resolved within two years.

Establishes clear timelines and procedural steps, ensuring that disputes are resolved efficiently and that double taxation is eliminated.

If the CAs fail to resolve the dispute within the prescribed period, the case automatically moves to mandatory binding arbitration, ensuring a timely resolution.

Summary of differences

Category

Bilateral Tax Treaties

EU Arbitration Convention

EU Directive

Scope

Broad scope covering various tax disputes, including transfer pricing and general double taxation issues.

Specific to transfer pricing and profit adjustments; does not cover other tax disputes.

Covers a wide range of tax disputes between EU Member States.

Applicability

Applicable to disputes under specific bilateral treaties, generally covering fiscal years to which treaty provisions apply.

Applicable to transfer pricing disputes and profit adjustments among EU Member States, covering disputes from fiscal years specified within the convention's terms.

Applicable to a broad range of tax disputes between EU Member States.

Resolution timeline

Encourages resolution within two years, but arbitration is not mandated if an agreement is not reached.

Requires CAs to reach an agreement within two years, with automatic referral to an Advisory Commission for Arbitration if unresolved.

Sets a two-year timeline for MAP resolution, with mandatory binding arbitration if unresolved.

Next steps if no resolution

Potential arbitration if included in the treaty; otherwise, the dispute may remain unresolved.

Automatic referral to an Advisory Commission for Arbitration if no resolution within two years.

Mandatory binding arbitration if CAs do not resolve the dispute within two years.

Each tax dispute resolution alternative offers distinct advantages and procedural steps, enabling Luxembourg-based entities to choose the most appropriate mechanism for resolving their international tax disputes and ensuring compliance with the arm’s length principle.

Choosing the right procedure or a combination of it with the right strategy is key in resolving a transfer pricing dispute in a favourable way.

 

Key takeaways

Luxembourg offers a robust framework for resolving international tax disputes through various mechanisms, including bilateral tax treaties, the EU Arbitration Convention, and the EU Directive on tax dispute resolution. These different routes are designed to address transfer pricing disputes by facilitating negotiation and cooperation between CAs. Each option presents distinct procedural steps, advantages and disadvantages, allowing Luxembourg to provide flexibility and adaptability when addressing cross-border tax conflicts.

Bilateral tax treaties remain fundamental in Luxembourg’s tax dispute resolution framework, covering a broad range of disputes such as transfer pricing and the allocation of taxable profits between jurisdictions. While these treaties encourage resolution within two years, they do not mandate arbitration if an agreement cannot be reached. This can leave unresolved disputes where mutual agreement is not achieved, making it important for taxpayers to consider the available alternatives that do offer binding resolutions.

The EU Arbitration Convention specifically targets transfer pricing disputes and offers a more structured resolution process. If CAs are unable to resolve the dispute within two years, the convention mandates automatic arbitration. This ensures a timely and in principle a definitive outcome, providing taxpayers with a clearer path to resolving conflicts related to transfer pricing or profit allocation within the EU.

Similarly, the EU Directive on tax dispute resolution introduces mandatory binding arbitration in cases where disputes cannot be resolved within two years. This directive underscores the EU’s commitment to eliminate double taxation further reinforcing the process of dispute resolution among Member States.

Besides using these dispute resolution mechanisms in transfer pricing disputes, taxpayers should also focus on preventive measures to mitigate potential transfer pricing disputes. This may be effectuated for instance through a robust and up-to-date transfer pricing documentation.

 

Conclusion

In conclusion, resolving transfer pricing disputes through Luxembourg’s dispute resolution procedures is a sophisticated process that requires not only the effective use of available mechanisms, applying very precisely the procedures, but also proactive, strategic efforts to prevent disputes from arising. Achieving this requires a deep understanding of tax treaties, transfer pricing regulations, and international tax agreements, combined with the foresight to identify and address potential transfer pricing conflicts early on. The true skill lies not only in navigating the complexities of cross-border taxation but also in anticipating challenges and implementing measures to minimise the risk of double taxation before it materialises. A key element of this preventive approach is to maintain comprehensive and well-supported transfer pricing documentation. 

Contact us

Marc Rasch

Tax Partner, Transfer Pricing, PwC Luxembourg

Tel: +352 62133 37 12

Arturo Ortega

Tax Director, Transfer Pricing, PwC Luxembourg

Tel: +352 62133 30 88

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