What are the four recognized categories of charitable purpose in Canadian law?

Canadian charity law recognizes four broad categories of charitable purpose, a classification with roots in English common law that Canadian courts and the Canada Revenue Agency still apply today: the relief of poverty, the advancement of education, the advancement of religion, and a fourth, residual category covering other purposes beneficial to the community in a way the law recognizes as charitable. An organization's stated purposes generally need to fit within one or more of these categories to qualify for registration.

The fourth category does the most practical work today, since it is where courts and CRA have recognized many modern charitable purposes that don't fit neatly into the first three — protecting the environment, promoting community health, and supporting the arts, for example — while still requiring that the purpose genuinely benefit the public, not just a private or narrow group.

Simply describing an activity as "helping people" or "doing good work" is not enough on its own; CRA looks at how the organization's actual purposes and activities map onto these four categories, and poorly drafted purpose clauses in the articles of incorporation are a common reason charity applications get delayed or rejected.