Overeaters Anonymous has no dues or fees for membership. It is entirely self-supporting through contributions and sales of publications. Most groups “pass the basket” at meetings to cover expenses. OA does not solicit or accept outside contributions.
OA has no central government and a minimum of formal organization. At the local, regional, and international levels, responsible people serve the organization by volunteering to lead meetings, conduct activities and sit on the Board of Trustees.
The World Service Office is a service center whose main function is to carry the OA message to the many compulsive overeaters who still suffer. The WSO publishes and distributes literature, maintains records on all registered groups, intergroups, regions and national service boards, and issues meeting directories. The World Service Office also maintains a national website and acts as a public information clearing house.