Among people who leave high school prior to completion, many return to schooling as adults. High school equivalency programs (such as a General Educational Development or Adult Basic Education program) gives them the opportunity to go back and complete high school requirements. Using data from the 2017 Aboriginal Peoples Survey--a national survey of First Nations people living off reserve, Métis and Inuit aged 15 and over--this study examines the factors associated with upgrading and high school equivalency among the Indigenous population living off reserve. It also examines whether high school equivalency or upgrading is associated with better educational and labour market outcomes. The first part of the paper presents a brief profile of the high school completion status of the Indigenous population aged 20 and over living off reserve. This is followed by an examination of the characteristics associated with upgrading or high school equivalency among this population. The results are presented for the total Indigenous population living off reserve and for each group separately, whenever possible. The final part of the paper adds to the limited existing research by examining, in both bivariate and multivariate models, the association of high school upgrading or equivalency with selected outcomes for Indigenous adults aged 25 and over.