Switzerland-UAE Tax Treaty: Anti-Abuse Testing from 2026

Executive Overview

The protocol amending the double taxation agreement between Switzerland and the United Arab Emirates entered into force in 2025, with most changes applying from 1 January 2026. It implements the minimum standards developed through the OECD BEPS project, including an anti-abuse clause based on the principal-purpose concept and updated provisions on the mutual agreement procedure.

For holding, financing, investment and owner-managed structures using the Switzerland-UAE corridor, the change is not cosmetic. Treaty access now has to be justified by reference to purpose, substance and documentation. Structures that produced a settled outcome under the previous wording should not be assumed to produce the same outcome under the amended text.

Regulatory Background

A principal-purpose style anti-abuse provision operates differently from a mechanical limitation rule. Rather than testing formal criteria alone, it asks whether obtaining the treaty benefit was one of the principal purposes of an arrangement or transaction, taking account of all relevant facts and circumstances. The consequence is that the analysis becomes evidential: the position depends on what can be shown about why a structure exists and how it operates.

The protocol also updates the provisions governing the mutual agreement procedure. Where double taxation arises in practice, that procedure can be an important route to resolution between the two administrations. It is, however, a procedural remedy rather than a substitute for a defensible primary position, and its usefulness depends heavily on the quality of the contemporaneous record produced at the time the arrangements were put in place.

Why It Matters

The Switzerland-UAE corridor carries a significant volume of holding, financing and entrepreneurial activity. The amended wording affects how that activity has to be evidenced rather than whether it is permitted.

• Swiss holding companies with United Arab Emirates subsidiaries, participations or investment vehicles.
• United Arab Emirates entities holding Swiss participations, real assets or financing receivables.
• Owner-managed groups whose decision-makers are mobile between the two jurisdictions.
• Financing structures where interest, dividend or royalty flows cross the corridor.
• International families and family offices with dual presence, succession planning or asset-holding entities in both places.
• Investors relying on treaty positions established before the amending protocol applied.
• Advisers responsible for confirming treaty eligibility and maintaining the supporting record.

Practical Issues to Review

1. 01Restate the commercial rationale for each entity in the corridor in terms that do not depend on the tax result, and record it in a form that predates the transactions it supports.
2. 02Test decision-making substance: where directors actually meet and decide, who prepares the underlying analysis and whether board records reflect genuine deliberation.
3. 03Reconcile legal form, cash flows and actual functions, since inconsistency between the three is the most common evidential weakness under a purpose test.
4. 04Review historic treaty positions taken before the protocol applied and identify those that depend on assumptions the amended wording no longer supports.
5. 05Assess the documentation held for residence, entity classification and the identity of the persons controlling each structure.
6. 06Consider the mutual agreement procedure as part of the contingency plan for double taxation, and identify in advance what evidence would be needed to use it.
7. 07Confirm that intra-group agreements, financing terms and remuneration arrangements are current, signed and consistent with how the parties actually behave.

TCC View

In TCC's view, Gulf-related structures should be tested for commercial rationale, decision-making substance and consistency between legal form, cash flows and actual functions before treaty benefits are relied on. The practical difficulty with a purpose-based provision is that it is applied retrospectively, against a factual record that was created without knowing which facts would matter. The only reliable protection is a contemporaneous record that would still read persuasively years later.

The second point concerns continuity. Many structures in this corridor were designed at a time when treaty access followed largely from formal residence. Those structures are not necessarily defective, but they were built to satisfy a different question. Reviewing them now, while the arrangements are functioning normally, is materially easier than reconstructing the rationale during an enquiry, when the participants may have changed and the original commercial context has become difficult to evidence.

Planning Note

Groups using the corridor should schedule a substance and documentation review during 2026, covering entity purpose, governance, functions and the consistency of flows with the contractual framework. Where a position has become uncertain under the amended wording, the sensible sequence is to establish the factual record first and to consider structural adjustments afterwards. Positions should be monitored as administrative practice develops in both jurisdictions, rather than fixed on the basis of pre-protocol expectations.