William D Green, Accenture’s chairman and chief executive, cited Ireland’s corporate, legal and ­regulatory environment and its tax treaties with EU member states, the US and the rest of the world as the reason for the move.

The firm has said it does not expect any material change in its operations, financial results or tax treatment as a result of the change in its place of incorporation, and will continue to be registered with the US Securities and Exchange Commission, even though it is not a US-based company.