The authority for the Association of Baptist Churches in Ireland rests with the churches themselves. Each church is permitted to appoint at least 2 representatives who collectively will form the Churches' Council. The Council meets twice in a year and appoints the Association Officers, Directors and Committees, approves the policy and practice of the Association and reviews the work undertaken on its behalf.
Consisting of 18 Church Representatives appointed by the Council the Executive Committee is responsible for overseeing the work of the Association between meetings of the Council.
The Churches' Council also appoints management committees to oversee the work of the various ministries of the Association.