That date has now passed. The question for boards and shareholders is no longer how to prepare, but whether their Mauritian entities are genuinely up to date – and, if not, how quickly gaps can be closed. With a practice focused on corporate secretarial work and regulatory support, C&S Secretarial Services helps companies take stock of their obligations and build a workable action plan across their Mauritian portfolio.

What the law now expects on BO/UBO

Recent amendments to the Companies Act and related instruments have moved Mauritian practice closer to international best standards on beneficial ownership. Every company is now required to identify its beneficial owners, maintain a dedicated register of BOs/UBOs and obtain a written, signed declaration from each of them confirming their status.

In operational terms, this means mapping the natural persons who ultimately own or control the company, directly or indirectly, in line with thresholds set out in the legislation and AML guidance. The information collected must be complete, accurate and kept up to date, and it must be stored in a way that allows for swift access by the Registrar of Companies or other competent authorities when requested.

A deadline behind us, not ahead of us

The transitional provisions attached to the Finance Act 2025 gave existing entities some breathing space to adjust. Companies incorporated before the new rules came into force were expected to have completed all steps relating to beneficial ownership – from collecting declarations to updating internal records – by 30 June 2026.

From that point onwards, failure to maintain a BO register or to secure signed declarations is treated as a compliance breach, not a mere delay in implementation. In practice, a company which, in August 2026, still lacks up‑to‑date registers, written confirmations or a clear internal process to track changes exposes itself to sanctions and to increased friction during audits, inspections or information requests. For groups with multiple Mauritian entities, the immediate priority is therefore to review the status of each structure and regularise any shortcomings without further delay.

Register, written declaration and officers: a three‑pillar compliance model

The new regime goes well beyond simply keeping a list of names on file. Each beneficial owner or ultimate beneficial owner must provide a written and signed declaration, setting out their identity, the nature of their interest or control and, where relevant, their percentage holding, and confirming that these details are correct as at the date of signature.

On top of that, the framework places responsibility squarely on designated individuals. Companies must appoint an authorised person or officer – and, where required, an alternate – in Mauritius to oversee the BO register, liaise with the Registrar and retain documentary evidence of the steps taken to identify beneficial owners. When a BO/UBO changes or their status evolves, it is this officer who must ensure the company is notified and that the register and underlying records are updated promptly, embedding beneficial ownership into the company’s wider governance discipline.

Looking ahead to 2027: more detail, wider scope

The tightening does not stop with the 2026 deadline. Building on the Finance Act 2025 and subsequent guidance, the Mauritian authorities have signalled that the net will widen further by 30 June 2027. The obligation to keep granular BO information is being extended to additional legal forms – including certain types of partnerships and foundations – and the content of registers is becoming more detailed.

In particular, entities will be required to include additional identifiers such as the date of birth of each BO/UBO in their registers, alongside the data already mandated. For international groups and investors in regulated sectors, this greater granularity has practical implications: document templates, onboarding questionnaires and internal workflows may all need to be redesigned well before the 2027 cut‑off if they are to capture the right information consistently.

The cost of non‑compliance: more than fines

The legal framework provides for penalties where companies do not comply with BO rules, but the indirect consequences are often just as significant. Incomplete or outdated BO registers can trigger delays or refusals in bank KYC procedures, complicate the opening and maintenance of accounts and raise red flags with regulators and counterparties.

Weak BO documentation can also make intra‑group transactions, disposals or restructurings harder to execute, especially where foreign investors or lenders carry out their own due diligence. In the investment, fund and holding company space, a robust, well‑maintained BO file is increasingly seen as a test of governance quality – and a precondition for doing business with more demanding institutional partners.

Preparing 2027 with C&S Secretarial Services

In this context, beneficial ownership compliance is no longer a one‑off exercise; it is becoming part of everyday corporate governance in Mauritius. C&S Secretarial Services supports domestic companies, Global Business entities and other Mauritian vehicles in turning these legal requirements into a structured, repeatable process.

Our team can, in particular:

• conduct a BO/UBO compliance review of your existing entities (registers, supporting documents, internal procedures);
• organise the collection or regularisation of written declarations from beneficial owners, in coordination with shareholders and ultimate controllers;
• design and implement or update BO registers and change‑management procedures, aligned with the Companies Act and Registrar guidelines;
• act as, or assist with the appointment of, authorised officers in Mauritius to interface with the authorities and ensure ongoing maintenance of records.

For boards and corporate groups looking to secure their position after the 30 June 2026 deadline and get ahead of the 2027 enhancements, C&S Secretarial Services offers a practical, governance‑driven approach to beneficial ownership compliance in Mauritius. Contact us today!

Sources of this article: 

• Corporate and Business Registration Department
• The Finance Act 2025 Mauritius – KPMG
• THE FINANCE ACT 2025 – FSC Mauritius  

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