The UK Dominates the Most Damaging Tax Havens

A new analysis from the Tax Justice Network (TJN) has revealed the United Kingdom to be the biggest enabler of corporate tax dodging in the world. As shown in this infographic, British overseas territories and crown dependencies dominate the top eight roundup of places allowing multinationals to avoid paying tax on their profits. Overall, this makes the UK responsible for about one third of global tax avoidance risk.

Ireland remained in ninth place for a second consecutive year in 2025, with an index value of 1,432. It is followed by Luxembourg (1,399) and then the Bahamas (1,283), the latter of which is an independent member of the British commonwealth but not an OT or CD. In position 12 comes the Isle of Man (1,189) and in 13 comes Guernsey (1,145), both Crown Dependencies. The United Kingdom places in 19th position with a value of 865.

The index evaluates jurisdiction laws and monitors the volume of corporate financial activity entering and leaving jurisdictions. A Haven Score is determined by more than 70 questions under 18 indicators to find the extent to which a jurisdiction’s laws and regulations allow for corporate tax abuse. The outcome of these indicators are then combined with global scale weights, which are based on IMF data on foreign direct investments. The final figure is a measure of the contribution of each jurisdiction to the global problem of corporate tax abuse.