The National Housing Co-Investment Fund is a federal program providing loans and contributions for new affordable housing construction and existing housing repair. Part of the National Housing Strategy, the fund prioritizes projects serving vulnerable populations, incorporating accessibility, energy efficiency, and mixed-income communities. Municipalities, non-profit housing providers, and private developers can access funding through application processes administered by Canada Mortgage and Housing Corporation. Cost-sharing typically requires contributions from other sources. The fund helps address Canada's housing crisis by increasing supply and improving existing stock. Municipal housing departments and non-profit partners work with CMHC to develop projects meeting fund criteria.