Seychelles vs Mauritius vs Comoros: Indian Ocean Offshore Jurisdictions Compared

The Indian Ocean has quietly established itself as one of the most significant offshore financial regions in the world — particularly for businesses and investors operating across Sub-Saharan Africa, the Middle East, and South Asia. Seychelles, Mauritius, and Comoros each offer distinct regulatory frameworks, treaty networks, and cost profiles that serve fundamentally different structuring purposes.

For African investors, multinationals with African operations, and development finance institutions channelling capital into the continent, choosing the right Indian Ocean jurisdiction is one of the most consequential decisions in the structuring process. This guide provides a comprehensive comparison.

Overview of Each Jurisdiction

Seychelles

The Seychelles International Business Company (IBC) is one of the world’s most cost-effective and administratively simple offshore vehicles. Regulated by the Financial Services Authority (FSA) of Seychelles, the IBC framework offers zero taxation on non-Seychelles income, rapid incorporation (typically within 24 hours), and a low annual government fee of approximately USD 150. Seychelles is not an EU member state and does not participate in automatic exchange of information with most African countries, making it a popular choice for asset protection and privacy-focused structures.

Mauritius

Mauritius has built one of the most sophisticated international financial centre frameworks in Africa. The Global Business Company (GBC) structure — regulated by the Financial Services Commission (FSC) — offers access to Mauritius’s extensive double tax treaty network of 46 treaties, including critically important treaties with India, South Africa, Kenya, Uganda, Rwanda, and Mozambique. Mauritius has invested heavily in positioning itself as the preferred gateway for foreign investment into Africa and Asia, and it shows: it is the single largest source of foreign direct investment into India and a dominant route for institutional capital entering Sub-Saharan Africa.

Comoros

The Union of Comoros — and specifically the autonomous island of Anjouan — offers an offshore financial centre that prioritises cost and simplicity above regulatory sophistication. Comoros is not FATF-listed and maintains a functioning company registry, but it lacks the regulatory depth, banking relationships, and international credibility of Seychelles or Mauritius. It is best understood as a cost-optimised offshore option for specific use cases where international banking access and treaty protection are not primary requirements.

Side-by-Side Comparison

The Treaty Network Advantage — Why Mauritius Dominates for African Investment

The single most important differentiator between these three jurisdictions is Mauritius’s treaty network. For any structure that involves investment into Sub-Saharan African countries or India — where withholding tax on dividends, interest, and royalties paid to offshore entities can be substantial — Mauritius treaty access can reduce that withholding tax to zero or near-zero, representing a material commercial advantage that no Seychelles or Comoros structure can replicate.

Kenya, for example, imposes a withholding tax of 15% on dividends paid to non-resident companies. Under the Kenya-Mauritius Double Taxation Agreement, that rate is reduced to 5% for qualifying Mauritius GBC shareholders. For a fund or holding company receiving significant dividend income from Kenyan subsidiaries, this differential can be worth millions over the life of the investment.

South Africa imposes withholding taxes on dividends at 20% and on royalties at 15%. The South Africa-Mauritius DTA reduces dividend withholding to 5% and royalties to 0%. These are not marginal differences — they are the difference between a commercially viable structure and one that destroys value through unnecessary tax leakage.

Substance Requirements — The Mauritius Trade-off

The treaty benefits of a Mauritius GBC come at a cost: genuine substance requirements. Following pressure from the OECD and the EU, Mauritius significantly tightened its substance rules in 2019. A Mauritius GBC that wishes to access treaty benefits must demonstrate that it is centrally managed and controlled in Mauritius — meaning real board meetings held in Mauritius with locally resident directors, adequate local expenditure, and qualified local staff.

The substance requirements have increased the cost of Mauritius structures significantly. A properly administered Mauritius GBC — with a local management company, nominee directors resident in Mauritius, and annual audited accounts — typically costs USD 5,000–15,000 per year in professional fees, compared to USD 500–1,500 for a Seychelles IBC. This cost is frequently justified by the treaty savings — but it must be factored into the structuring analysis.

When to Use Each Jurisdiction

Choose Seychelles when:

The structure does not require treaty protection; speed and cost efficiency are paramount; the business does not have investee companies in treaty-significant jurisdictions; or the structure is primarily for asset protection and privacy rather than active tax planning.

Choose Mauritius when:

The structure involves investment into Africa, India, or other treaty-covered jurisdictions; withholding tax reduction is commercially significant; the client requires a credible, regulated holding structure that will be accepted by institutional co-investors, lenders, and regulatory bodies; or the structure must be presented to development finance institutions, which typically require Mauritius-based holding vehicles for African investments.

Consider Comoros when:

Cost is the overriding factor; no treaty protection is required; the structure does not require access to international banking beyond basic payment processing; and the use case does not require a recognised offshore jurisdiction for counterparty or banking due diligence purposes.