The view of the government in England is that good English and mathematics knowledge is key to employment and education prospects. Students who do not achieve a GCSE grade 4 or above in these subjects must continue to study English and mathematics alongside their chosen post-16 studies. This article outlines the background to this situation, then brings together findings from research literature on the challenges and issues faced by students and teachers affected by this requirement. Focusing on GCSE resits and Functional Skills qualifications, the article identifies ways in which post-16 students and teachers can be supported and whether their support needs differ according to the qualification students are working towards.