Sanctions being discussed include the imposition of extra reporting requirements for clients of 'rogue' jurisdictions, prohibitions on bank dealings with financial institutions in the jurisdictions, and the trimming of aid trade programs such as the Lome Convention. The first two of these would perhaps breach Treaty of Rome and WTO capital market rules? The third might be difficult to get through the EU's decision process.

It is understood that more than half of the 47 jurisdictions originally targeted by the OECD have agreed to talks, although some of them have complained loudly about hypocrisy on the part of OECD countries, including Jersey and the Bahamas.