Mauritius's headline corporate income tax (CIT) rate is 15 (3% for export goods companies).
The headline personal income tax (PIT) rate is 20.
The standard VAT/GST (or equivalent consumption tax) rate is 15. Registration thresholds, zero-rated and exempt categories, and reduced rates vary by jurisdiction - see the source link below for the full detail on this jurisdiction.
Under Section 73 of Mauritius's Income Tax Act, an individual is resident if: domiciled in Mauritius (unless their permanent place of abode is elsewhere); present in Mauritius 183 days or more (aggregate) in an income year; or present in Mauritius, across that income year and the two preceding income years, for an aggregate of 270 days or more. The Mauritian tax year runs July 1 to June 30. A company is resident if incorporated in Mauritius or has its central management and control there - notably, a Mauritius-incorporated company with central management and control outside Mauritius is treated as non-resident. Individual and corporate taxation differ materially: resident individuals are taxed on Mauritius-source income plus foreign income only when remitted to Mauritius (a remittance-basis system, not worldwide taxation); resident corporations are taxed on worldwide income with foreign tax credit/treaty relief available. Non-residents (individual or corporate) are taxed only on Mauritius-source income.
Mauritius has a genuine CFC regime that applies to corporate taxpayers only, not individuals. A CFC is a non-resident company (or a foreign PE of a Mauritian resident) in which a Mauritian resident company, alone or with associated enterprises, holds more than 50% of total participation rights directly and indirectly. Where the CFC's undistributed income arises from "non-genuine arrangements" put in place for the essential purpose of obtaining a tax advantage, that income is imputed to the Mauritian resident shareholder. Safe harbors exclude the rules where: accounting profits are below EUR 750,000 and non-trading income below EUR 75,000; accounting profits are less than 10% of operating costs; or the CFC's home-country tax rate exceeds 50% of the Mauritius rate.
Mauritius has no thin capitalization rules or fixed debt-to-equity ratio. However, the Income Tax Act separately allows the Mauritius Revenue Authority (MRA) to disallow and recharacterize as a dividend any interest paid on debentures issued to shareholders, and to disallow interest deductions where the interest is payable to a non-resident not chargeable to Mauritius tax on that interest.
Mauritius has no domestic equivalent to the US FBAR (FinCEN Form 114) or Form 8938 requiring Mauritian residents to self-report foreign accounts to the MRA. Mauritius does, however, participate fully in cross-border financial transparency frameworks: it signed the OECD's Multilateral Convention on Mutual Administrative Assistance in Tax Matters and began Common Reporting Standard (CRS) automatic exchange of information in 2018, and Mauritius-based financial institutions have FATCA reporting obligations to the US IRS regarding US-linked accounts. This is institutional cross-border reporting by financial institutions to tax authorities, not a personal self-reporting obligation on the Mauritian taxpayer's own foreign holdings.
Per the Mauritius Revenue Authority's own published list, Mauritius has concluded 45 tax treaties. Of these, 7 await ratification (Gabon, Comoros Islands, Kenya, Morocco, Nigeria, Russia, Angola), 7 await signature (Botswana [New], Curacao, Czech Republic, Gibraltar, Guyana, Malawi, the Gambia), and 19 more are under negotiation (including Canada, Portugal, Saudi Arabia, Spain, and Tanzania). Mauritius has indicated 23 of its in-force treaties will be covered by the BEPS Multilateral Instrument, with a commitment to bilaterally revise the remaining 19 for BEPS minimum-standard compliance.