Seventh Tradition of OA: Every OA group ought to be fully self-supporting, declining outside contributions.
How much money should I give?
The current suggested donation is $5.00 or more per meeting. However, never stay away from a meeting for financial reasons. Give what you can when you can.
How does OA support itself?
OA has no dues or fees for membership. Our program is open to all who have a desire to stop eating compulsively, regardless of personal financial condition. OA is self-supporting through member contributions. Most groups “pass the basket” at meetings to cover expenses. People give what they can when they can. OA does not solicit or accept outside contributions.
Literature sales provide additional funds to support OA’s expenses. The money is used for OA’s primary purpose to carry the message of recovery that is possible through the Twelve Steps of Overeaters Anonymous.
Copied from – https://oa.org/faqs/categories/seventh-tradition
The structure of OA can be compared to an upside down pyramid.
At the top are thousands of members all over the world.
They contribute to all levels of OA.
Anyone who wishes to stop eating compulsively can become a member.