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About Us

Prism Chambers is a boutique business law firm in Mauritius, founded in 2019 by dual qualified (England & Wales and Mauritius) former magic circle lawyer Johanne Hague.

The firm specialises in all aspects of revenue law, including tax advisory, transactional tax and tax controversy matters, with a significant cross-border element. We pride ourselves in having a unique approach to dealing with tax matters: combining in-depth expertise in the subject matter with empathy and commitment to addressing the clients’ tax needs and resolving their tax disputes in an efficient and commercially sound manner.

The firm has an excellent market reputation for its tax controversy practice. We represent our clients at all levels of the dispute resolution process, including before the Supreme Court of Mauritius. The managing partner of the firm has also appeared as an expert witness in Mauritius tax laws before the UK’s First Tier (Tax) Tribunal. The firm’s expertise is consistently sought for high profile tax litigation cases on complex cross border matters, including on transfer pricing cases.

We are also regularly instructed to conduct bespoke tax trainings for clients in Mauritius and across the African continent on a variety of international tax topics, such as AEOI (Automatic Exchange of Information) legislation and BEPS (Base Erosion Profit Shifting) updates as well as domestic tax updates.

Our Expertise

We also service our corporate clients in a variety of other areas, including: Commercial Litigation, Employment, Investment Funds,  Fintech& Regtech, AML/CFT.

All the law practitioners at Prism Chambers are admitted to the Bar of Mauritius and are qualified to practise under Mauritian law. The team currently consists of five (5) barristers, one (1) senior lawyer and one (1) legal executive. All members of the firm are well versed in Mauritian law, and use their industry insights, commercial awareness and intellectual rigour in order to provide commercially efficient and robust advice to  clients.

Collaborations

We also have a close collaboration with a number of other law firms, law practitioners and tax accountants in order to provide a seamless service to our clients in relation to all their legal needs.

Prism Chambers is also a growth partner of PUNCH, to boost all local entrepreneurs in Mauritius, and endeavoured to make a more resilient, agile and diversified economy. We regularly provide legal assistance to small businesses registered on the platform and help them thrive, particularly during challenging times. Through its involvement on the PUNCH platform, the firm is able to contribute to a more dynamic, circular, inclusive and sustainable economy.

Awards and rankings

  • Prism Chambers has been ranked Tier 1 in Mauritius in both the General Tax and the Tax Controversy categories for the ITR World Tax Rankings 2025.
  • Johanne Hague has been ranked as Highly Regarded Practitioner in General Corporate Tax for the ITR World Tax Rankings 2025.
  • Medina Torabally has been ranked as Rising Star in Tax Controversy for the ITR World Tax Rankings 2025.
  • Prism Chambers has been ranked by Legal500 as ‘Leading Firms’ in Mauritius. (Rankings published in March 2024).
  • Johanne Hague has been ranked in Chambers & Partners Global Ranking 2024.