This is the question that kills 80% of Mauritius company projects at the first serious tax audit: “Do you have real economic substance in Mauritius?” If the answer is no, then it doesn’t matter how clever your legal structure is, how elegant the Companies Act, or how rich the Mauritian treaty network: the FSC refuses your Tax Residence Certificate, the French (or your home country) tax administration reclassifies your structure, and you leave with a major reassessment plus penalty.
Since 2019 and Mauritius’ alignment with OECD BEPS Action 5 (Substantial Activity Requirements), economic substance is no longer an administrative detail, it’s the condition of your company’s fiscal existence. This guide details exactly what the Financial Services Commission (FSC) requires in 2026, how it monitors it, and what it concretely costs to put in place.
YMYL disclaimer: this content is informational and not personalised advice. Substance requirements depend on your structure type (GBC, Authorised, Domestic) and your activity. For concrete implementation, our firm supports the structuring with certified Mauritian accounting (MIPA) and legal partners.
In short: the 6 pillars of economic substance in Mauritius
- At least 2 Mauritius tax-resident directors (for GBCs)
- Minimum operating expenditure proportional to activity, often > USD 12,000/year
- Board meetings held physically in Mauritius, with documented minutes
- Main bank accounts in Mauritius
- Qualified employees or service providers performing Core Income-Generating Activities (CIGA) on the ground
- Physical office or qualified domiciliation (not a mere letterbox)
Without these 6 pillars in place and provable, the FSC may refuse renewal of the Global Business Licence, and the shareholder’s country of residence (France, Belgium, etc.) may activate the treaty anti-abuse clause (PPT) and tax the profits as if locally earned.
1. Why economic substance became central
BEPS context and the Mauritian evolution
The OECD BEPS Action 5 (Base Erosion and Profit Shifting, 2015) laid down a simple principle: tax benefits are granted only to companies that carry on substantial economic activity in the jurisdiction that grants them. No more “letterbox” companies capturing profits through purely formal arrangements.
Mauritius, member of the OECD Inclusive Framework, aligned its legislation in several waves:
- 2018-2019: removal of the old GBC1/GBC2 categories, restructuring into GBC + Authorised Company
- 2019: adoption of Substantial Activity Requirements by the FSC for GBCs
- 2021: removal from the EU grey list (compliance proven)
- 2024-2026: tighter audits, faster sanctions, more frequent FSC reviews
The CIGA concept (Core Income-Generating Activities)
This is the cornerstone of the regulation. The FSC (and OECD) considers that a company has real substance if the essential activities that generate its income are effectively performed in Mauritius.
For a holding: decisions on participations, group treasury management. For an asset management company: investment decisions, risk management, compliance. For an IP licensing company: R&D, management and exploitation of intellectual property. For a service company: actual service delivery from Mauritius.
Practical test: if tomorrow your company were relocated to another country, would anything concrete in the business change? If not → substance insufficient.
2. Requirements by structure type
Global Business Company (GBC), strict requirements
This is the most monitored structure. The FSC publishes annual Guidance Notes specifying expectations:
| Criterion | FSC 2026 Requirement |
|---|---|
| Mauritius-resident directors | At least 2 |
| Physical board meetings in Mauritius | All (with signed minutes on the ground) |
| IFRS accounting | Mandatory (kept in Mauritius) |
| Annual audit | Mandatory (MIA-registered firm) |
| CIGA employees / providers | Proportional to activity, often 1 to 5+ |
| Annual operating expenditure | > USD 12,000 minimum (FSC reference), adjusted to size |
| Main bank account | In Mauritius |
| Premises | Physical or qualified FSC domiciliation |
| FSC reporting | Annual + ad hoc on request |
| Economic substance test | Annual (self-assessment + possible FSC audit) |
⚠️ The USD 12,000/year minimum operating expenditure is a theoretical floor. In practice, for an activity with significant turnover (> €1M), the FSC expects proportionally larger expenditures (local salaries, audit, premises, advisory).
Authorised Company, light substance but real elsewhere
An Authorised Company is not tax-resident in Mauritius. It therefore doesn’t need to prove substance in Mauritius, but it must prove substance in the country where it’s effectively managed.
The classic trap: a French resident sets up an Authorised in Mauritius “because it’s cheaper and simpler”, without realising that the French administration considers the company is actually managed from Paris → French tax residence → French taxation at 25% corporate tax + risk of abuse of law qualification.
The Authorised only makes sense for a resident of a jurisdiction without global taxation (Monaco, UAE, Bahamas…) or a country that won’t reclassify the structure.
Domestic Company, minimal substance but conditional treaty access
For a Domestic Company with activity in Mauritius (local clients, employees, on-island operations), substance is structurally present by nature. No need to prove anything specific.
However, for a Domestic that uses a tax treaty (e.g. France-Mauritius for dividends from a French subsidiary), the Tax Residence Certificate from the MRA requires proof of effective residence, including substance elements similar to GBCs (resident admin, accounting, board meetings).
3. The 6 substance pillars in detail
Pillar 1: Mauritius tax-resident directors
Requirement: at least 2 directors who are Mauritius tax residents (> 183 days/year on the island, or vital interests in Mauritius).
Practice:
- You can be one of the 2 if you transfer your residence (Premium Visa, Occupation Permit).
- Otherwise, the partner firm provides professional resident directors, trained and registered.
- Directors must be genuinely involved in decisions, sign minutes, and understand the business.
⚠️ Pitfall: “nominee” directors who sign without deciding are now detected by FSC audits. They can invalidate the entire structure.
Pillar 2: Operating expenditure in Mauritius
FSC requirement: amount proportional to activity. The often-cited threshold is USD 12,000/year, but it’s a floor for very small entities.
Eligible expenditure items:
- Local employee salaries
- Management Company fees (mandatory for GBCs)
- Local accounting fees (MIPA-registered firm)
- Annual audit
- Office rent
- Board meeting expenses (transport, catering)
- Local legal fees
NOT counted:
- Fees paid to providers outside Mauritius
- Virtual fees (pure domiciliation without services)
Pillar 3: Physical board meetings in Mauritius
Requirement: board meetings and all strategic decisions are made physically in Mauritius. At least 1 board meeting per quarter, ideally more.
Documentation:
- Minutes dated and signed in Mauritius
- Attendance list (proof that directors were physically present)
- Decisions documented with economic rationale
- On-site retention of documentation for minimum 7 years
Are video calls acceptable? Very limited. The FSC tolerates one director participating remotely occasionally, but the majority must be physically present in Mauritius.
Pillar 4: Bank accounts in Mauritius
Requirement: the main bank account of the company (the one receiving operating flows) is opened in Mauritius, with a local bank (MCB, ABC, AfrAsia, SBM, Banque Populaire de l’Océan Indien, etc.).
Why: the FSC wants a Mauritian banking trace of economic operations. A company whose 100% of flows go through a German or Swiss account is suspicious.
You can have secondary accounts elsewhere (useful for multi-currency or international clients), but the main account must be in Mauritius.
Pillar 5: Employees / CIGA providers
This is the most subjective and most controlled pillar. The FSC evaluates who actually does the work.
For a pure holding: 1-2 resident directors handling financial management + local accounting = often sufficient.
For an operational company (services, e-commerce, SaaS): you need local employees or providers performing the key revenue-generating functions. A SaaS with 100% dev done in India and no employees in Mauritius → weak substance.
For IP licensing: strictest requirements since 2019. R&D or active IP management must take place in Mauritius. Otherwise, Partial Exemption is not granted.
Pillar 6: Physical premises
Minimum requirement: a real physical address in Mauritius where the company can be contacted, receive mail and hold its board meetings.
Acceptable options:
- Office leased directly (most credible)
- Dedicated coworking space (with formal contract)
- Domiciliation with an FSC-licensed Management Company (acceptable but examined)
Not acceptable:
- Shared address with 500 other companies without real services
- PO box only
- Personal address of a director without professional setup
4. Sanctions in case of insufficiency
Mauritius side (FSC + MRA)
- Refusal to renew the Global Business Licence → the company loses GBC status and Partial Exemption benefits.
- Refusal of Tax Residence Certificate by the MRA → impossible to apply tax treaties.
- Administrative fines: up to MUR 500,000 (~€10,000) per infringement, plus daily penalties.
- Removal from the company register in case of prolonged non-compliance.
Home country side (France, Belgium, etc.)
This is in practice the most serious risk:
- Activation of the Principal Purpose Test (PPT) under BEPS Action 6 → denial of treaty benefits → domestic rates applied (25% on dividends instead of 5%).
- Permanent establishment reclassification: if the Mauritian company is actually run from the home country, its profits become taxable there at 25% corporate tax + risk of abuse of law (Article L. 64 of the French LPF) with 80% penalty.
- Tax residence reclassification: the company may be considered a domestic tax resident, with backdating on prior years.
Over 5 years, the cost of a reassessment can represent 100 to 300% of the profit declared in Mauritius. The economic calculation quickly turns into a nightmare.
5. Three practical cases
Case A : GBC SaaS doing it right
Context: Marc, founder of a European B2B SaaS, €1.2M revenue. Transfers his residence to Mauritius via Premium Visa.
Substance set up:
- Marc becomes a resident director, plus a second local professional director
- Hires 2 local employees (Africa sales + admin/finance)
- Office rent in Ebène (~USD 600/month)
- Accounting and audit via MIPA-registered partner firm (~USD 8,000/year)
- Board meetings every 2 months in Mauritius, minutes signed on-site
- Total operating expenditure: ~USD 85,000/year
Result: GBC renewed annually without friction, TRC granted, Partial Exemption applied (effective corporate tax rate ~3% on eligible IP income). Annual saving vs French structure: ~€250,000.
Case B : “light” GBC that gets renewal refused
Context: Company set up in 2022 by a French resident, €600k revenue. No local employees, board meetings “via video”, one local professional director at €200/month.
2025 FSC audit: substance insufficient. Licence renewal refused in 2026.
Consequences:
- Loss of GBC status → 15% corporate tax without Partial Exemption
- TRC refused → France applies 25% withholding on outbound dividends
- PPT activated → France claims treaty benefits back on 3 years: ~€180,000 catch-up + 80% penalty = ~€325,000 total
Case C : Authorised Company in a grey zone
Context: Sophie, French resident, sets up an Authorised in Mauritius in 2024 to “invoice her African clients from Mauritius”. No substance, management 100% from Lyon.
Real risk:
- No problem on the Mauritius side (Authorised = non-resident, so no substance required in Mauritius)
- Huge problem on the French side: administration considers the company is French tax resident (effective management from Lyon)
- Retroactive taxation at 25% corporate tax + abuse of law + criminal risk
Verdict: the “simplicity” of the Authorised is a mirage if you remain a resident of a high-tax country.
6. What it really costs
For a GBC with proper substance (target revenue < €1M):
| Item | Estimated annual cost |
|---|---|
| FSC licence (annual renewal) | ~USD 1,800 |
| Management Company (directors + corporate secretarial) | USD 6,000–10,000 |
| IFRS accounting + Annual audit (MIPA firm) | USD 7,000–12,000 |
| Domiciliation / office (minimum formula) | USD 3,000–7,000 |
| Compliance, AML, filings | USD 1,500–3,000 |
| Legal fees (ad hoc) | USD 1,000–3,000 |
| Total minimum | ~USD 20,000–35,000/year |
⚠️ If you hire real employees, add USD 800–2,500/month per employee (depending on role).
Our preferential regime offer (€5,600/year) covers the essentials: FSC licence, Management Company, accounting, audit, domiciliation and partner coordination. You know what it costs upfront, with no hidden fees.
For a Domestic Company (without enhanced requirements): €3,600/year with us, all-inclusive, excluding substance linked to your operational activity if you genuinely move your business on-island.
7. Action plan to build real substance
- Clearly define your activity’s CIGA: which processes generate your revenue? What percentage can reasonably be executed in Mauritius?
- Identify who performs these CIGAs today: if it’s you from your home country, you need to either transfer residence or recruit locally.
- Evaluate the realistic minimum expenditure threshold for your profile. Multiply by 1.5 for a margin.
- Build the local administrative and operational team: Management Company, directors, employees or providers, accountant.
- Document rigorously: board meetings, decisions, invoices, contracts, salaries, everything must be presentable to the FSC or a foreign tax specialist.
- Renew annually: FSC substance self-declaration, TRC at MRA, on time.
- Anticipate the audit: the FSC can audit your substance at any time. Better be ready 365 days a year than scramble at the last minute.
Sources and official references
- Financial Services Commission (FSC) Mauritius, Global Business Licence requirements: fscmauritius.org
- FSC Guidance Notes on Substance Requirements (published annually): FSC Library
- Income Tax Act 1995 (Mauritius) : Partial Exemption regime: supremecourt.govmu.org
- OECD BEPS Action 5, Substantial Activity Requirements: oecd.org/tax/beps/action5
- OECD Inclusive Framework on BEPS, Mauritius peer review: oecd.org/tax/transparency
- Mauritius Institute of Professional Accountants (MIPA): mipa.mu
- Mauritius Revenue Authority (MRA), TRC procedure: mra.mu
- Our France-Mauritius Tax Treaty 2026 guide and GBC vs Authorised vs Domestic comparison
Article written by Quentin, founder of CAP Maurice. Last updated 26 May 2026. To assess the right level of substance for your project, book a free discovery call.
