Tax advice, redefined.

Moving your business forward with real tax solutions.

Our team of seasoned experts, all with backgrounds in the Big Four, is dedicated to guiding you through every aspect of tax compliance, structuring, and planning. We give you clear answers, not just opinions, delivered swiftly and flexibly to meet your specific needs.

With strategically located offices in South Africa, Mauritius, Ireland, and the UK, we combine local expertise with a global reach to address any tax challenge effectively.

Trusted by these companies

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Years combined tax experience
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Tax experts (all ex-Big Four)
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Countries we've advised on

Your Business, Our Expertise

Discover the diverse range of clients who trust us with their tax needs.

Multinational
Groups

We work with the tax teams of multinational groups to help them navigate the ever-increasing complexity of the global tax environment. For any area of your tax function life cycle, our tax experts provide fast and lasting solutions to move you forward.

Founders and Privately Owned Businesses

Unique solutions for Founders and Private Business Owners. From streamlining global operations and optimising your overall tax charge for enhanced profits, structuring for sale, succession or listing to advice on everyday tax headaches, our solutions meet your needs. Read on for more services below.

Private
Clients

For individuals with unique tax needs. Whether you need to plan your retirement, emigration or safeguard your wealth, we can help with a full range of tax compliance and advisory services for private clients. Learn more below about our comprehensive set of services.

Our tax area leaders

Our people are our greatest strength.

Our team specialises across service areas, allowing us to work with your business to deliver rapid, pragmatic results in our respective fields. We focus on giving answers, not just opinions, based on your unique business situation and drivers – one size does not fit all.

Caoilfhionn van der Walt

Founder & Managing Partner

Cabrini McCarrick

Transfer Pricing Partner

Vanessa Turnbull-Kemp

SA Outbound Structuring Partner

Tracy Potgieter

SA Corporate Tax Partner

Russell Eastaugh

African Advisory

Wian de Bruyn

Customs & Excise

Why choose us?

Regan van Rooy offers bespoke tax solutions for every business type and every business stage.  

Established in 2016, we pride ourselves on our expert tax knowledge coupled with industry-leading customer service and responsiveness. Our focus is on providing bespoke advice, recognising that each business and stage of business is unique.

Our team’s deep understanding of today’s dynamic fiscal landscape equips us to offer insightful, practical tax solutions and strategies suited to your specific business needs. We’re here to advise AND walk alongside you through your complex fiscal challenges, whether it’s a short-term project or a long-term partnership.

Tax in everyone’s language.

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Have any questions? Let's chat.

We love meeting founders and executives! Jump on a call with our team to answer any questions.

Founder & Managing Partner

Caoilfhionn van der Walt

Founder & Managing Partner

With over two decades in international tax, Caoilfhionn, a chartered accountant, has significant experience from Arthur Andersen and Deloitte London to leading the international tax function at South African multinational Sasol.

Currently, she heads Regan van Rooy’s Mauritian office, actively contributing to tax technical committees in Mauritius and South Africa.

Transfer Pricing

Cabrini McCarrick

Transfer Pricing

Cabrini, an economist and lawyer with over 18 years in transfer pricing, spent the bulk of her career at Deloitte in London and Johannesburg.

She currently leads the Transfer Pricing team at Regan van Rooy, focusing on design, business model optimisation, documentation, and dispute resolution.

Vanessa Turnbull-Kemp

SA Outbound Structuring

With over a decade in international tax, Vanessa holds a BCom with Honours and a Higher Diploma in Taxation.

She has substantial consulting experience from KPMG and Deloitte, focusing on international tax and structuring, as well as in-house experience as International Tax Manager at Sasol, a South African headquartered multinational group.

Dr Daniel N. Erasmus

Senior Tax Litigation Specialist *Independent Counsel

Dr Daniel N. Erasmus is an internationally recognised expert in tax law with over 35 years’ experience in tax planning, tax disputes and litigation. He represents multinational corporations in complex tax matters across the USA and Africa and is an adjunct professor, author and leading authority on international tax, transfer pricing and tax risk management.

Daniel joins our team as independent senior counsel as part of our end-to-end disputes and litigation service offering.

Russell Eastaugh

African Advisory

Russell has over 40 years’ experience in African tax advisory including his role as a tax partner at PwC in both Nigeria and Uganda.

Russell covers various tax disciplines, including VAT and excise duties. He was a member of the Fiscal Policy Reform Committee under the last Nigerian government.  He is also a non-Executive Director of a small Nigerian finance company, and is a Fellow of the Chartered Institute of Taxation of Nigeria.

Wian de Bruyn

Customs & Excise

A Master Customs Practitioner, Wian’s career includes roles with the South African Department of Trade & Industry, as well as consulting roles at EY and Deloitte Johannesburg.


He focuses on customs compliance and duty optimisation.

Complete the fields below to download the guide by Dr Daniel N Erasmus.

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Thank you for your interest, please complete the form below to download the checklist pdf.

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