Who We Are

Strength in Your Defence. Clarity in Complex Matters.

Fortis Tax takes its name from the Latin word fortis, meaning strong – a principle that defines our approach. We stand for strength in your defence, clarity in complex matters, and a steadfast commitment to achieving fair, lasting outcomes.

As a specialist advisory firm, we focus exclusively on HMRC dispute resolution and compliance advisory, helping Individuals, Owner-Managed Businesses, Corporates, and professional advisers navigate challenging situations with confidence.

Our ethos is built on three pillars:

Strength – robust representation and unwavering advocacy for our clients.
Precision – meticulous attention to detail in every aspect of dispute resolution.
Integrity – transparent, ethical, and client-focused solutions.

Whether it’s defending against HMRC enquiries, managing COP9 investigations, or advising on complex compliance issues, Fortis Tax delivers expertise and strategic insight at every stage.


Our Story

Our journey has been anything but ordinary. With over 10 years experience within the industry, from qualifying as an Inspector of Taxes in HMRC and later leading within a specialist compliance area, our foundations were built at the heart of the UK tax authority. Stepping into the private sector brought a new dimension, allowing us to apply that insider expertise to advocate for clients with clarity, precision and unwavering integrity. Our experience is deep, distinctive and hard‑earned; our results and client feedback speak for themselves.