While the Cathedral itself is maintained by Historic Scotland, the Congregation is responsible for meeting all the costs involved in employing its personnel, maintaining its own buildings (including the Cathedral Halls) and in promoting the work of the Church within the community. In addition we contribute generously each year to the wider work of the Church both in Scotland and overseas.

Each year, from mid-January to Easter, a Church Membership Class meets on a Sunday morning after the Morning Service for those who wish to consider becoming members of the Church by Profession of Faith. The Course covers basic matters of Christian belief and membership of the Church. The Class is open-ended, in that no prior obligation to join the Church is expected of those who attend. The intention is rather to enable people to use the course to help them reach a decision. A Service of Confirmation for those who choose to join is held shortly after Easter.