The Pacific Islands Forum says it will help and assist any member countries looking to address tax deficiencies identified by the European Union.
Five Pacific countries remain on a recently down-sized EU blacklist of nine tax haven nations.
The forum secretariat's deputy secretary general Cristelle Pratt said a meeting with the European Commission next month may provide an opportunity to discuss the issues directly.
"It may well be an issue that could be discussed, and it would be something of course that we would work with our members on if they requested support and assistance in that regard," Ms Pratt said.
The EU said the blacklist was part of a greater plan to promote good tax governance globally.