Peter McMahon CTA

Tax Partner
Additional language(s): German

My specialisms and expertise:

  • Corporation Tax
  • Estate compliance and administration
  • Inheritance Tax
  • Share Schemes
  • Tax compliance
  • Tax investigations
  • Tax planning


Supporting clients to make more of their money and assisting with complex HMRC enquiries

Approach to work

I enjoy working with the vast variety of clients that we have and the firm’s ethos is in tune with my values and mission to deliver outstanding tax advice.

As a team, we are fully committed to the tax wellbeing of our clients and pride ourselves on not just dealing with taxation, but also helping our clients to realise their dreams and aspirations.

I work with my fellow Partners, looking at various tax planning ideas for our clients to minimise and mitigate tax wherever possible.

I also help my clients with their day-to-day tax compliance and administration needs in the ever more complex world of tax, including implementing tax strategies and tax planning solutions.

Alongside this work, I am highly experienced when it comes to assisting clients with complex tax enquiries and have helped numerous businesses and individuals with their dealings with HM Revenue and Customs.

My practice also includes trust and estate compliance and administration, implementing and advising on company share schemes and employee remuneration packages.

My clients come from a full range of sectors, size and location, although my practice has a particular focus on SMEs and owner-managed businesses.


I joined Grunberg & Co in 2005 and was made a Partner in 2011. My career began as an accountant but I soon realised that the world of taxation is where my heart belongs and I decided to pursue a career as a Chartered Tax Adviser.