Why Mauritius Works as a Structuring Gateway to Africa, and Where the Argument Breaks

Mauritius is not a tax haven, and it is not a magic gateway. It is a mid-sized international financial centre with an unusually dense treaty network, a substance regime that is now genuinely enforced, and a professional bench that has been structuring African investment for three decades. Whether it is the right domicile for your structure depends on facts that are specific to your investment, and on a substance test you have to actually pass rather than assert.

This article sets out what the jurisdiction demonstrably offers, with the current figures, and then states the conditions under which the argument for it stops working. That second half is the part most advisory material leaves out, and it is the part B Hub Consulting is retained for: our Capital Formation and Market Entry practice advises governments, international law firms and institutional investors on whether a structure holds, not merely on how to register one.

The treaty network, which is the actual asset

The core of the Mauritius proposition is a network of double taxation avoidance agreements built deliberately over decades as an instrument of economic diplomacy. Mauritius has concluded more than 45 tax treaties, with further agreements under negotiation, and 17 in force with African countries. The network also covers major capital-exporting jurisdictions including the United Kingdom, India, France, Singapore and South Africa.

What that buys a fund or a corporate is predictability on withholding taxes and, critically, on capital gains treatment when an investment is eventually exited. For a private equity fund with a ten-year horizon investing across several African markets, the ability to model exit taxation consistently is worth more than a marginal rate advantage in any single year.

The numbers behind the centre

The financial services sector is the second pillar of the Mauritian economy and its scale is frequently understated in general coverage.

• The financial services sector accounted for an estimated 13.3% of GDP in 2024, split across monetary intermediation (7%), insurance, reinsurance and pensions (1.9%), financial leasing and other credit (0.7%) and other services (3.7%).
• A University of Mauritius study put the sector’s real contribution closer to 25% of national GDP once indirect, induced and catalytic effects are counted.
• The Global Business Licence segment alone contributed 8.2% of total GDP and generated the majority of the country’s corporate tax take in 2024.
• The sector directly and indirectly supports more than 36,800 jobs.
• Mauritius-administered global business companies held approximately USD 44.6 billion of investment positions in African economies as at mid-2025.
• The island attracted USD 1.25 billion in private equity across the first nine months of 2025.

Those figures matter for a practical reason rather than a promotional one. A jurisdiction whose financial services sector is a quarter of its economy has a powerful incentive to protect its reputation, which is why the substance regime tightened rather than loosened.

Substance: the condition most structures fail on

A Global Business Company holds a licence from the Financial Services Commission and can access the treaty network and the partial exemption regime only if it meets substance conditions under section 71 of the Financial Services Act 2007, and only if the arrangement passes a principal purpose test. Those two gates are where structures built on a decade-old template now fail.

In practice, substance means the company is actually managed and controlled from Mauritius: directors resident on the island who genuinely direct the business, board meetings held and minuted there, core income-generating activity carried out in or from Mauritius, proportionate expenditure and employment, and banking and record-keeping consistent with all of that. A brass plate and a nominee director is not substance, and has not been treated as such for years.

The principal purpose test is the harder one because it is about intent. If obtaining a treaty benefit was one of the principal purposes of the arrangement, and granting it would be contrary to the object of the treaty, the benefit can be denied. That is a judgement, made after the fact, by a tax authority in the country where the investment sits.

Where the Mauritius argument breaks

Four situations, stated plainly, in which we would advise against the structure.

1. 01The only rationale is the tax rate. If you cannot articulate a commercial reason for the entity to exist in Mauritius that would survive being read aloud to a tax authority, the principal purpose test is a live risk and the structure is fragile.
2. 02There is no intention to build real substance. Substance costs money: resident directors who actually direct, local expenditure, real record-keeping. If that cost makes the structure uneconomic, the structure was already uneconomic.
3. 03The target country has no treaty with Mauritius, or has renegotiated it. Treaty positions change. India’s protocol is the standard cautionary example. Check the current, in-force position for the specific target market rather than a general claim about the network.
4. 04The investment is a single asset in a single country with a local alternative. The treaty network rewards multi-jurisdiction portfolios. For one asset in one market, a domestic structure is often simpler and cheaper.

What the jurisdiction is genuinely good at

Strip out the promotional language and three advantages are real and durable. First, an experienced professional bench: administrators, auditors and counsel who structure African transactions routinely rather than occasionally, which shortens execution. Second, a bilingual, common-law-anchored legal environment with a Judicial Committee of the Privy Council appeal route, which institutional investors price. Third, time zone and connectivity that make it practical to run an African portfolio alongside Gulf and Asian capital relationships in the same working day.

The state has also published a five-year strategy for the sector, "Rethinking the future of the Financial Services Industry", aimed at positioning the island as the leading international financial centre for Africa and Asia around sustainability and technology. Whether that is delivered is a fair open question, but the direction is set and funded.

Who should be in the room for this decision

The Mauritius market is well supplied with firms that will incorporate a Global Business Company and administer it competently. That is the commodity layer, and it is not where structures fail. They fail earlier, in the judgement about whether the arrangement has a commercial rationale that survives a principal purpose test, and later, in whether the substance being funded is proportionate to the benefit being claimed. Both are advisory questions, and neither is answered by an administrator whose fee depends on the entity existing.

B Hub Consulting is retained on exactly that question. It is a principal-led firm registered in Mauritius (BRN C07000934), and its Capital Formation and Market Entry practice works alongside Sovereign and Institutional Advisory, which matters here because the counterparties in an African structuring decision are frequently ministries, regulators and development finance institutions rather than only commercial parties.

• Principals, not an account team. The person who assesses the structure is the person who defends it in the meeting where it is questioned.
• Cross-jurisdictional by default. B Hub works along the corridors linking the Indian Ocean, East Africa, the Gulf and Central Asia, from two international financial centre jurisdictions, so the target-market side of the structure is assessed as seriously as the Mauritius side.
• Independent of the administration fee. B Hub does not administer global business companies, so it has no commercial interest in the answer being yes.
• Backed by a working engineering practice for the data, reporting and document-intelligence systems that substance and filing discipline actually require at scale.

Enquiries are handled in confidence and answered at principal level within one business day. If you have a structure in front of you, or an investment thesis that has not yet chosen a domicile, put it to us before the incorporation, not after.

How to approach the decision

Start with the investment, not the structure. Establish the target markets, the expected holding period, the exit mechanism and the investor base. Only then test whether the Mauritius treaty position improves the after-tax outcome across that whole path, and whether the substance you would have to build is proportionate to the benefit. A structure designed the other way round, picking the domicile first and reverse-engineering a rationale, is the one that fails a principal purpose test five years later when someone finally asks.

For the firms that do this work on the island, read the best consultants in Mauritius compared. For the technology agenda now running alongside the financial centre, read AI consulting in Mauritius. Our Capital Formation and Market Entry practice advises on exactly this decision, and if you have a structure in front of you, put it to us.