A UCD graduate, after gaining experience in Dublin working for Arthur Andersen John founded the practice in 1982 to offer accountancy services to clients on both sides of the border.  John has particular expertise in the area of cross border business, auditing, business development and community businesses. Having served as chairman for 17 years, John is a serving board member of the pioneering community organisation Newry & Mourne Co-operative Ltd, which has an asset base of over £10 million.

John has been lobbying on behalf of cross border business for many years, succeeding on changing onerous legislation on a number of occasions.

  • All

  • Chartered Accountant, Insolvency Practitioner

  • Family Business and Cross Border Taxation

  • johnmacmahon@johnmacmahon.com

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