In other words, the mean years of schooling or the highest level of education attained are imperfect indicators of the basic literacy skills required on the specific labour market of the host country. [...] The literacy skills proficiency projections results assess the impact of the socio-demographic changes on the overall skills proficiency of the future Canadian population between 2011 and 2061. [...] Our framework recognises the functional definition of the Human Capital theory24 of the schooling pathway on productivity while asserting the influence of the social structure and learning context during childhood (cultural and social capital) on the schooling pathway and economic outcomes25,26,27,28,29. [...] To assess the global impact of socio-demographic changes on the literacy skills of the future working-age population, it is necessary to consider both the strength of each determinant and the prevalence of it in the population. [...] This does not preserve the variation of proficiency observed in the PIAAC data among people with similar characteristics, but it fully captures the impact of the socio- demographic changes on the overall skills of the population.