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With over 20 years experience as a tax adviser I work with a wide range of clients from owner managed businesses to listed companies and their stakeholders. My expertise covers corporation and transaction tax, as well as shareholder and tax efficient remuneration planning.

Since 2011, when I joined Grant Thornton, I have led the Gatwick office tax practice. I also sit on the national client care panel, working to ensure all our clients receive excellent service. 

The weekends are my leisure time when I am generally busy entertaining my two young kids.

  • ACA
  • BSc
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John O’Mahony
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Partner, Practice Leader at Gatwick
John O’Mahony
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