Double Irish arrangement

The double Irish arrangement was a tax strategy that some multinational corporations used to lower their corporate tax liability. The strategy has ceased to be available since 1 January 2015, though those already engaging in the arrangement have until 2020 to find another arrangement. The strategy used payments between related entities in a corporate structure to move income from a higher-tax country to a lower or no tax jurisdiction. It relies on the fact that Irish tax law does not include transfer pricing rules as does the United States and those of many other jurisdictions. Specifically, Ireland has territorial taxation, and does not levy taxes on income booked in subsidiaries of Irish companies that are outside the state.