Soka Gakkai presents a distinctive model of lay Buddhist organization, structured yet non-monastic, in which ordinary practitioners assume responsibility for leadership and religious functions. At the broadest level, it is organized internationally through Soka Gakkai International (SGI), a federation that links autonomous national bodies. In Japan, Soka Gakkai itself functions as the core religious corporation, with historically related but separate educational and cultural institutions. This framework allows for a clear institutional identity while remaining rooted in the lives of householders and local communities rather than a clerical elite.

Within this overall framework, leadership follows a defined hierarchy, headed by a president who serves as the most prominent figure, supported by vice presidents and other senior leaders such as general directors and directors. National organizations typically have their own presidents and executive boards or similar bodies, including boards of directors and executive committees. At each level—international, national, regional, and local—appointed lay leaders are responsible for guidance, coordination, and communication. This creates a system in which authority is clearly structured, yet exercised by practitioners who maintain ordinary social and professional lives.

Geographically, the organization is arranged in nested territorial units that bring practice down to a very local scale. International and national levels are subdivided into regional divisions, areas, chapters, districts, and finally groups, which are often the smallest unit and may consist of a modest number of members. The district is frequently the key locus of community life, where members gather for regular meetings. Monthly discussion meetings, along with regional and national gatherings, serve to weave individual practice into a shared communal rhythm and to transmit guidance throughout the structure.

Functionally, Soka Gakkai organizes its membership into divisions that reflect life stage and social situation rather than monastic rank. There are Men’s and Women’s Divisions, as well as Young Men’s and Young Women’s Divisions, with additional student-oriented groupings in some contexts. A Study Department attends to doctrinal matters and the systematic study of Nichiren Buddhism and Soka Gakkai thought, while other departments, such as those focused on culture or peace affairs, support specific areas of activity. All religious activities—chanting, study, propagation, ceremonies, and guidance—are conducted by lay leaders, reflecting the movement’s independence from the Nichiren Shoshu priesthood and its commitment to a form of Buddhist community in which spiritual responsibility rests squarely in the hands of everyday practitioners.