The 2020 Throne Speech announced the federal government’s plan to introduce a new disability income benefit modelled on the Guaranteed Income Supplement (GIS) for seniors.  The primer scans the income support landscape in Canada and explores where and how the disability benefit might fit. It asks a series of questions about eligibility, benefit levels, administration and relationship to other income benefits. It provides a vocabulary for policy discussions with family, friends, neighbours, policy makers, elected representatives and the media about this landmark commitment.