John Gulliver


Mason Hayes & Curran
South Bank House
Barrow Street
Dublin 4

Tel: +353 1 614 5007
Fax: +353 1 614 5001


John is Head of Mason Hayes & Curran’s Tax Team and chairs the firm’s International Committee. For more than 25 years he has advised Fortune 500, FTSE 100 and other major multi-nationals in respect of international tax.

He regularly works with some of the world’s leading tax lawyers and advisers on transactions structured in and through Ireland.

He has a particular focus on advising groups in respect of the use of Ireland as a platform for high leveraged finance, intellectual property development, including innovation centres and Ireland as a holding company jurisdiction.

John was educated at the University of London (LLB(Hons)), is an associate of the Institute of Chartered Accountants and the Irish Institute of Tax and is a UK Chartered Tax Adviser.

Professional Memberships

  • Institute of Taxation in Ireland
  • Institute of Taxation UK (Chartered Tax Advisor)
  • Institute of Chartered Accountants in England and Wales
  • Acted for Deutsche Bank in its structured acquisition of more than 500 properties in Ireland.
  • Led major tax litigation for three weeks before Irish Appeal Commissioners.
  • Acted as Irish tax counsel on numerous group reorganisations using Irish vehicles.
  • Acted as Irish tax counsel to Berkshire Partners LLC, Advent International Corporation and Bain Capital Partners LLC in their recommended $1.1 billion acquisition by way of scheme of arrangement for SkillSoft plc.
  • Acted as sole Irish tax counsel for UK quoted Vedanta Resources plc in connection with its acquisition of zinc mining interests in Ireland as part of its agreement with Anglo American plc to purchase African and Irish zinc mining interests for $1.34 billion.
  • Acted as Irish tax counsel to Mylan Inc., which ranks among the leading generic and specialty pharmaceutical companies in the world, in respect of its $550 million cash acquisition of Bioniche Pharma Holdings Ltd., an Irish based global distributor of generic injectable drugs.
  • Acted as Irish tax counsel to LaCrosse in respect of its acquisition from Bank of America Merill Lynch’s global alternative fund administration business that will increase the group’s funds under administration from $15 billion to $21 billion.
  • Acted as exclusive Irish tax counsel to BNP Paribas in its multi-billion Euro bid for the Polish assets of AIB.
  • Acted as Irish tax counsel to Samsung in its US$1 billion plus disposal of its hard Disc drive business to Irish incorporated parent, Seagate Technology.
  • Acted as joint Irish tax Counsel to Odeon Cinema’s in its acquisition of one of the largest cinema chains in Ireland.
  • Acted for the providers of finance arranged by Merrill Lynch, Pierce, Fenner & Smith Incorporated and J.P. Morgan Securities for the $7.3bn bid by Royalty Pharma for Elan Corporation plc.
MHC’s Tax team comprises internationally experienced tax law partners and professionals and provides innovative and leading edge tax services to its international corporate and individual client base.

Their service offering is focused on companies and individuals using Ireland as part of their global tax management strategy. The firm regularly works with tax counsel from overseas practices on mergers and acquisitions, redomiciliations, asset finance, debt capital markets, debt structures and investment funds.

Ireland’s membership of the EU, its regulatory regime, the 12.5% corporate tax rate, various tax credit relief regimes and tax exemptions in respect of certain activities provides a unique platform to structure international business in and through Irish corporate and other vehicles.

The firm advises on:

  • Structuring multinational corporate activities in and through Ireland
  • Use of Ireland as a location to build and develop an EMEA hub
  • Corporate inversions into Ireland
  • Ireland as a location for intellectual property
  • Structuring acquisition and disposal of distressed debt
  • Double taxation treaties
  • Employee benefits and packages
  • Stamp duty & VAT
  • Transfer pricing
  • Tax controversies
Mason Hayes & Curran is a full service business law firm with offices in Dublin, New York and London with 80 partners and over 440 personnel. At Mason Hayes & Curran have a tradition of delivering consistently excellent advice.

The firm provides a broad range of legal services to multi-national, institutional and government clients.

The firm has a solution-driven approach to business, which combines commercial awareness with intellectual rigor consistently exceeding client expectations. MHC offers real strength in depth yet has still retained their entrepreneurial flair and business focus.

Key areas of expertise include Mergers and Acquisitions, Securities Law, Tax, Financial Services, Real Estate, Data Protection and Litigation. The firm’s lawyers provide services across a range of sectors including energy, healthcare, technology, and banking.

“John Gulliver is highly renowned for his expertise in tax issues related to M&A, group restructurings and inward investment. His recent highlights include advising a major listed minerals company on a complex tax appeal before the Irish Appeal Commissioners. Clients say that “John is like a walking textbook when it comes to the international tax space.”
Chambers & Partners, 2017