Changes in the qualification profiles of workers is one indicator of changes in the supply and demand for education and training. Using Australian Census data on highest qualification held (which may understate the incidence of Vocational Education and Training (VET) qualifications if they were obtained after completing higher education) this project analyses how tertiary qualification profiles in occupations changed between 2006 and 2016. Data from the 2015 Survey of Qualifications and Work, conducted by the Australian Bureau of Statistics (ABS), are also used to examine how well qualifications match workers' occupations. A specific focus of this analysis is on changes in the proportions of workers with vocational education and training (VET) qualifications. The analysis finds that, over the last decade, the overall workforce has become more educated: the proportion of workers holding VET or higher education qualifications has increased, while the numbers and proportion of workers without post-school qualifications has correspondingly decreased. The study also revealed a general mismatch in terms of the skill level (and relevance) of the highest qualifications held by workers and the level of skill required for the job, with many more workers holding qualifications that 'exceed' the skill requirements for their occupation. While this may indicate underutilisation of skills and therefore sub-optimal returns on public and private investment in education and training, the study does not consider the broader social and economic benefits of having a more highly educated and skilled workforce. As the study noted, changes in the mix of VET and higher education qualified workers in the workforce can be influenced by changes to industry regulatory requirements, credentialism and supply-side factors rather than occupational demand per se. In particular, supply-side influences such as higher education funding policies, combined with young people preferencing higher education over VET, are key factors in the changing distribution of the qualification profiles within the workforce.