Since the 1990s, the Organization for Economic Cooperation and Development (OECD) has pursued the issues of bribery and tax havens, resulting in changes to certain U.S. laws. In addition, the OECD, under the direction of its member countries, spearheaded an international agreement to outlaw crimes of bribery, and it continues to coordinate efforts aimed at reducing the occurrence of money laundering, corruption, and tax havens.

The federal government loses both individual and corporate income tax revenue from the shifting of profits and income into low-tax countries, often referred to as tax havens. The revenue losses from this tax avoidance and evasion are difficult to estimate, but some have suggested that the annual cost of offshore tax abuses may be around $100 billion per year. International tax avoidance can arise from large multinational corporations who shift profits into low-tax foreign subsidiaries or wealthy individual investors who set up secret bank accounts in tax haven countries.