Macarthur Anglican School is governed by an independent School Council comprising ten members who volunteer their time and skills. The School Council is constituted in accordance with an ordinance of the Synod of the Anglican Church of Australia, Sydney Diocese. The Macarthur Anglican School Ordinance (1982) provides the structure in which governance takes place.
Macarthur Anglican School is a truly independent school with no other overarching organisational structure and is not part of any system of schools. The School is a member of the Association of Independent Schools NSW (AIS) and the Headmaster is a member of the Association of Heads of Independent Schools of Australian (AHISA) and the Heads of Independent Co-educational Schools (HICES). While the ultimate owner of the School is the Sydney Anglican Diocese, the Macarthur Anglican School Council operates it in trust. As such, the School does not fit within any bureaucratic framework and relates directly with the Diocesan organisation, governments; Local, State and Federal; and their relevant agencies.
The School Council is a policy setting and monitoring body and is not involved in the management of the School. The Headmaster is the School Council's Chief Executive Officer and is fully responsible for the day-to-day and strategic management of the School. The School Council therefore sets broad policy direction for the School and monitors its operations within the various legislative and regulatory frameworks.
The Archbishop of Sydney is the President of the School Council and may attend and Chair meetings from time to time. Ordinarily the School Council elects a Chair from its members to oversee the operation of the Council. The Council also elects an Honorary Secretary and has three standing committees; the Finance, Property and Marketing Monitoring Committee; the Governance and Policy Monitoring Committee; and the Capital Development and Endowment Committee.
Members of School Council are elected by the Synod for a three year term (six members in total, two elected each year), appointed by the Archbishop (two members, one an Anglican Clergy and one a lay member), or appointed by the School Council itself for a three year term (two members).