Gabrielle Dillon

I have worked in VAT for several years now. I recall that U2 had a number 1 hit in Ireland with “the Sweetest Thing” in the year I started, although I believe the events are unrelated.

Having completed my BL in Kings Inns, I set out to find what I was looking for and finally decided there could be no finer career than that of a VAT consultant, so I joined BDO, where I learned the intricacies of VAT law.

In 2004, I joined Dermot O’Brien & Associates and became a Director of the firm a couple of years later. I developed a significant portfolio of clients and take great personal satisfaction from providing them with solutions to whatever VAT issues they may have, no matter how technical or complex they might be.

I qualified as an Associate of the Irish Taxation Institute in 2002 and continue my involvement with the Institute on a variety of committees. Currently, I lead the Institute’s representation on the TALC VAT sub-committee, which I chair.

I have lectured in VAT on the Irish Taxation Institute’s Tax Technician programme and its AITI programme. I write the “VAT News” column in the Irish Tax Review and I am co-author of the Institute’s VAT and VAT on Property book.

There are so many fascinating aspects to VAT that it is hard to know where to start, but my particular interest is VAT and property. So much so that I am also co-author of a book on the subject, published by Chartered Accountants Ireland.

I hail from Mayo and am developing a greater interest in hurling whilst waiting for Sam Maguire to come West!

I joined Twomey Moran, with Dermot, in March 2020.


Running in very inhospitable places and competing in triathlons of all distances.


Associate of the Institute of Taxation


Jim Mooney VAT Article of the Year 2012