The past decade has been marked by cuts in public funding of adult social care alongside an increased policy focus within the UK on extending working lives through ‘50 PLUS Choices’. This study uses the UK Household Longitudinal Study (2009/10–2018/19) to examine the relationship between informal care provision and labour market participation. The analysis focusses on mid-life, a period of life course characterised by both the uptake of informal care provision responsibilities and withdrawal from the labour market. Across the observation period, employment increased amongst both mid-life carers and non-carers, but the gap widened – with carers being much less likely to be employed. Discrete-time survival models assess the effect of caregiving on the likelihood of changing from full-time to part-time work or leaving work altogether. A range of indicators of caregiving, including care intensity, type of care provided and relationship to the person cared for, are all associated with reduced employment. The analysis supports the argument that policies promoting higher labour force participation amongst older workers are incompatible with cuts in funding for adult social care; to realise ‘50 PLUS Choices’, older working carers need to be better supported in juggling the competing demands of care and work.