Introduction
Mauritius PPT Rules 2026 introduce an important change to the India–Mauritius Double Taxation Avoidance Agreement (DTAA). The new Principal Purpose Test (PPT) strengthens measures against treaty shopping and arrangements designed primarily to obtain unintended tax benefits.
The amendment is particularly relevant to foreign portfolio investors, private equity funds, multinational companies and businesses using Mauritius-based investment structures. Understanding these changes can help organisations review their tax positions, investment arrangements and compliance responsibilities.
The protocol was signed on 7 March 2024 and entered into force on 10 August 2026. The Indian government subsequently notified it on 13 October 2026 through Notification S.O. 5611(E).
This article explains the important changes, how the PPT works and what investors should consider when reviewing their existing structures.
1. Understanding the India–Mauritius Tax Treaty
The India–Mauritius Double Taxation Avoidance Agreement (DTAA) is an agreement designed to prevent the same income from being taxed twice under the tax laws of both countries.
It also aims to encourage international trade, investment and economic cooperation between India and Mauritius.
Over the years, Mauritius has been an important jurisdiction for foreign investment into India. Investors have used Mauritius-based entities for investment holding, cross-border transactions and other international business activities.
However, concerns about treaty shopping and tax avoidance have led to changes in the agreement.
The latest amendment strengthens the treaty’s anti-abuse framework and introduces additional conditions for accessing treaty benefits.
2. Key Mauritius PPT Rules 2026: What Has Changed?
The 2026 protocol introduces two important changes to the India–Mauritius tax treaty.
Revised treaty preamble
The revised preamble reinforces the objective of preventing double taxation without creating opportunities for non-taxation or reduced taxation through tax evasion and avoidance.
It also specifically addresses treaty-shopping arrangements designed to obtain tax benefits indirectly for residents of third jurisdictions.
This change strengthens the overall purpose of the agreement and discourages artificial arrangements created primarily to secure unintended tax advantages.
Introduction of Article 27B
The protocol introduces a new provision called Article 27B – Entitlement to Benefits.
This article establishes the Principal Purpose Test (PPT). It allows treaty benefits to be denied in certain circumstances where obtaining those benefits was one of the principal purposes of an arrangement or transaction.
However, an important safeguard is included. Treaty benefits may still be available if granting them is consistent with the object and purpose of the relevant treaty provisions.
3. What Is the Principal Purpose Test (PPT)?
The Principal Purpose Test is an anti-abuse provision used to prevent arrangements that are primarily designed to obtain tax treaty benefits.
Under Article 27B, tax authorities can examine the facts and circumstances of an arrangement or transaction.
If it is reasonable to conclude that obtaining a treaty benefit was one of its principal purposes, that benefit may be denied.
However, the test also provides an important safeguard. A taxpayer may establish that granting the benefit is consistent with the object and purpose of the relevant treaty provisions.
The assessment therefore depends on the specific circumstances of the transaction.
Important factors considered under the PPT
Businesses and investors should understand the following considerations:
- Purpose of the arrangement: Authorities may examine why a particular investment or transaction structure was created.
- Commercial justification: The business and economic reasons behind the arrangement may be relevant.
- Treaty entitlement: The taxpayer’s eligibility must be considered under the amended treaty.
- Relevant circumstances: The assessment considers the facts surrounding the arrangement rather than relying only on its legal form.
- Treaty objectives: The availability of benefits also depends on whether granting them is consistent with the purpose of the relevant treaty provisions.
The PPT does not mean that every transaction involving Mauritius will automatically lose treaty benefits.
4. When Did the Mauritius PPT Rules 2026 Take Effect?
The protocol was signed on 7 March 2024 and entered into force on 10 August 2026, after both countries completed the required procedures.
The Indian government subsequently issued Notification S.O. 5611(E) on 13 October 2026 to give effect to the protocol in India.
Article 3 of the protocol states that its provisions take effect from the date of entry into force, regardless of the date on which taxes are levied or the taxable years to which they relate.
This makes the effective date important for businesses reviewing existing tax positions and investment arrangements.
Companies should carefully assess the application of the new provisions to their transactions rather than assuming that the notification date determines every tax consequence.
5. Impact of Mauritius PPT Rules 2026 on Foreign Investors
The amendment is particularly relevant to investors using Mauritius-based entities to invest in India.
Foreign portfolio investors, private equity funds and multinational companies may need to review their existing investment structures and the reasons behind them.
The following areas deserve attention.
Foreign portfolio investments
Investors should review their investment arrangements and assess whether their treaty positions are supported by relevant commercial and legal circumstances.
Private equity and investment funds
Funds using Mauritius-based holding entities should examine their investment structures, transaction documentation and eligibility for treaty benefits.
Multinational companies
Businesses operating across multiple jurisdictions should review their cross-border arrangements and understand how the amended treaty may affect their tax positions.
Holding company structures
Companies using Mauritius entities as holding companies should maintain appropriate records explaining the commercial reasons for their structures and relevant investment activities.
The actual tax treatment will depend on the applicable treaty provisions and the facts of each arrangement.
6. Does the Amendment Change Existing Tax Rates?
The 2026 protocol primarily introduces anti-abuse provisions through the revised preamble and Article 27B.
It does not itself introduce new withholding tax or capital gains tax rates under the treaty.
It also does not automatically make every Mauritius-based investment taxable in India.
Instead, it introduces a test for determining whether treaty benefits should be available in the circumstances of a particular transaction.
Businesses should therefore distinguish between changes to treaty entitlement and changes to the underlying tax rates.
7. Compliance Checklist Under Mauritius PPT Rules 2026
Businesses and investors should review their existing arrangements to understand how the amended treaty may affect their tax positions.
The following checklist can help organisations prepare.
- Review the amended India–Mauritius DTAA and Article 27B.
- Identify investments and transactions involving Mauritius-based entities.
- Review the commercial purpose of existing investment structures.
- Maintain relevant agreements and transaction documentation.
- Keep records supporting the business reasons for investment arrangements.
- Review tax residency and treaty eligibility documentation.
- Assess the impact on cross-border payments and investment transactions.
- Examine pending tax matters and relevant assessments.
- Seek professional advice before restructuring existing arrangements.
Maintaining accurate records and reviewing treaty eligibility can help businesses manage tax risks more effectively.
8. How Derecho Consulting Can Help
Understanding international tax treaties and applying their provisions to cross-border transactions can be challenging.
Derecho Consulting supports businesses with tax advisory, regulatory compliance and corporate legal guidance.
Our support can help organisations:
- Understand changes to international tax treaties.
- Review cross-border investment arrangements.
- Assess potential tax compliance risks.
- Examine relevant documentation and transaction structures.
- Understand treaty eligibility requirements.
- Identify areas that may require professional tax advice.
A structured review can help businesses understand their responsibilities and make informed decisions about international investment arrangements.
Conclusion
The India–Mauritius Tax Treaty 2026 introduces an important development in India’s international tax framework. The revised preamble and new Article 27B strengthen measures against treaty shopping and arrangements designed primarily to obtain unintended tax benefits.
For foreign investors and businesses using Mauritius-based structures, the Principal Purpose Test makes it important to review the commercial purpose and documentation supporting their transactions.
The amendment does not automatically remove treaty benefits from all Mauritius-based investments. Instead, entitlement depends on the relevant treaty provisions and the circumstances of each arrangement.
Staying informed about the Mauritius PPT Rules 2026 can help businesses review their investment structures, understand potential tax risks and manage cross-border compliance more effectively.
Disclaimer: This article is intended for general informational purposes only and does not constitute legal or tax advice. Businesses and investors should review the applicable treaty provisions and seek professional advice before making tax or investment decisions.