The Yearbook & Directory of Ireland's international financial services industry Monday, 30th March 2020
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Tax [Taxation]

Profile: Our tax department is significantly the largest tax practice group among Irish law firms. In contrast to the tax departments of other Irish law firms, we operate primarily as a 'front-end' service. Significantly more than half of our work is on transactions or advisory matters where our tax professionals have the sole or lead role. We also advise on the taxation aspects of transactions as part of a multi-disciplinary team with lawyers from other groups within the firm. We often act as special tax counsel in transactions where clients require specialised tax advice and are not comfortable using the tax department of their existing legal advisers. We do not provide tax compliance services.

Our dedicated international tax group advises on cross-border transactions in conjunction with legal and tax counsel from other jurisdictions. We have committed considerable resources to building and maintaining good relationships with these lawyers.

We advise many leading domestic and international corporations and financial institutions doing business in and from Ireland. We focus on the timely delivery and implementation of integrated leading edge tax advice. Our philosophy is 'can do', if there is a solution we will find it.

We were the first Irish law firm to have Irish tax capability on both coasts of the US. In 2011, leading tax adviser John Ryan, was appointed head of the firm's US offices and is based in New York. Tax partner Mark O'Sullivan is based in our Palo Alto and San Francisco offices.

We are consistently ranked as the leading tax law firm in Ireland by the European Legal 500, Chambers Global, American Lawyer, Directors Tax Handbook, World Tax and International Tax Review.



Galvin, Turlough

Firm: Matheson
Position: Partner and Co-Head of Finance and Capital Markets
Address: 70 Sir John Rogerson's Quay Dublin 2
Phone: +353 1 232 2232
Personal URL:


Ryan, John

Firm: Matheson
Position: Chair of the Tax Department and Head of US Offices
Address: 200 Park Avenue New York NY 10166 United States
Phone: +1 646 354 6583
Personal URL: