Supporting businesses with corporation tax compliance, returns and planning in Ireland

We support businesses operating in Ireland with corporation tax compliance, returns and advisory matters, from routine obligations to more complex tax requirements as businesses grow and change.

We work with companies across Ireland, from owner‑managed businesses to larger corporate groups, providing clear and practical support grounded in Irish tax requirements. Our focus is on helping businesses understand and manage their corporation tax obligations with confidence, while supporting informed decision‑making as circumstances evolve.

Our corporation tax services

Support with corporation tax compliance, including preparation and review of returns
Advisory input on how Irish corporation tax rules apply to business activities
Guidance on tax considerations as businesses grow, scale or diversify
Input on tax implications arising from changes to ownership or group structures
Support for group and multi‑entity corporation tax requirements
Assistance with Revenue queries, interventions and ongoing engagement

How we support you

Establishing and growing the business

Guidance on corporation tax obligations for businesses establishing or expanding operations in Ireland.

Structural change and transactions

Corporation tax input on ownership changes, group structures and transactions.

Ongoing operations and Revenue engagement

Support with corporation tax compliance and Revenue queries as they arise.

Why choose Moore Ireland

National and cross-border experience

Advising Irish businesses, including those with cross‑border operations.

Experienced tax advisors

Chartered Tax Advisers with experience across compliance, advisory and Revenue interaction.

Over 50 years advising clients on tax

Experience across corporation tax compliance, planning and Revenue engagement.

What our clients say

David McKay | CEO | Danann Air Limited

Moore have helped us progress. It has been a very supportive relationship. They always keep in touch with us, they make sure things are OK. If there is any problem, they address it well. I’ve had 100% service from each of them. They always provide clarity and every time we need something, we can pick up the phone.