In May 2016 the Government of Canada, along with other G-7 countries, committed to a timeline to phase out fossil fuel subsidies. These countries committed to ending fossil fuel subsidies by 2025, attaching a specific year to the previous commitments to phase out subsidies for fossil fuels. This commentary highlights some of the prominent subsidies in place in Ontario that give preferential tax treatment to the use of fossil fuels, and how Ontario stacks up against other provinces. If Canada is to eliminate fossil fuel subsidies by 2025, it will have to work with Ontario to address the following subsidies in one manner or another.