[1][2] The purpose of the organization is to maintain unity among Hungarian Reformed churches in different countries and to give joint representation of denominations in international organizations of Reformed denominations.
[3] From the Dissolution of Austria-Hungary, after the First World War, the members of the Reformed Church of Hungary were spread over several countries.
[4] In each of these, Hungarian retirees organized themselves as a new national denomination.
[1][2] All denominations part of the communion subscribe to the Second Helvetic Confession and Heidelberg Catechism as a faithful expression of biblical doctrines, such as the Reformed Church of Hungary.
[7] Likewise, they differ from the other reformed denominations in that they call those responsible for a church jurisdiction "bishop".