Using micro‐data from the Household, Income and Labour Dynamics in Australia Survey, and the Oaxaca–Blinder decomposition technique, this paper examines the determinants of the gender gap in financial literacy. The analysis suggests that human capital variables, such as age and education, are not important in explaining the gender gap in financial literacy. Labour market variables, such as sector, occupation, industry, union membership and labour market status, are important and explain around 16 per cent of the gap. This finding is dependent on the assumption that these variables are exogenous. There is a large unexplained gap, suggesting that the main determinants are neither human capital nor labour market factors.