Glossary
Subsidiarity
The principle that matters should be handled by the smallest, lowest or least centralized authority capable of doing so effectively.
Also called: principle of subsidiarity
Subsidiarity holds that decisions and responsibilities should rest with the level closest to the people affected, such as the family, neighborhood or local government, with larger bodies stepping in only when smaller ones cannot manage. It is both a social principle and a rule for dividing authority.
The term was developed in Catholic social teaching, notably in Pope Pius XI's 1931 encyclical Quadragesimo Anno, which warned against larger organizations absorbing functions that smaller ones could perform. It also appears in the law of the European Union, which applies it to the relationship between the EU and its member states. Its spirit is close to federalism and to Edmund Burke's little platoons, though the idea of subsidiarity also implies that higher authority has a duty to help when needed.
Conservatives often cite it to defend local control of schools, charities and policy, and to criticize centralization. Supporters on the left have also invoked it to argue for community-level responses or, conversely, that the principle justifies national action when local bodies cannot cope. Critics point out that it does not settle who decides what the "lowest competent level" is. It supports civil society and limited government arguments.
Last reviewed November 8, 2026