As a charitable foundation, he has tax-free status. Supposedly only if he remains non-partisan (cough, cough). After his recent rant in front of young children urging their parents and teachers to not vote for the evil conservative government, he should lose that status. Canadians can call the CRA at 1-800-267-2384 to lodge a formal complaint. Get the name of the person you speak to and tell them you expect follow-up info on the complaint.