Few studies have attempted to identify predictors for spending behaviour on same-day visits. A good understanding of these predictors, however, could serve as a guide for the planning of marketing campaigns, could help in increasing the economic benefits of day trips and could be of interest from a policy perspective. Thus the main objective of this study is to investigate the effects of a wide range of socio-demographic and same-day visit related variables on the volumes and probabilities of same-day visit expenditures. Using a unique dataset on same-day visits in Belgium, the empirical results highlight that the duration of a same-day visit, age, information, education and motivation are important determinants of same-day visit expenditures.