Mairéad Hennessy is the founder of Taxkey, a specialist tax consultancy dedicated to helping clients navigate complex tax matters and make confident, commercially sound decisions.
Mairéad leads a team of expert Chartered Tax Consultants who work with accountants, solicitors and financial planners to deliver practical, proactive tax solutions that protect value and support informed decision-making. The firm is known for its collaborative approach and its ability to bring clarity to high-risk, high-value tax matters.
With over 20 years’ experience as a tax practitioner, Mairéad is recognised for combining technical depth with commercial insight. She regularly speaks at professional conferences on tax technical matters and contributes to leading professional journals.
Mairéad is actively involved in tax policy and administration through her role on the Tax Administration Liaison Committee (TALC), representing the Irish accountancy bodies on key working groups. This front-line exposure to emerging tax issues ensures her advice is current, informed and strategically focused.
