The relationship between bank credit and trade credit is considered a useful aspect to assess whether banking systems provide the necessary financing to companies. In Mexico, in recent years, opinions have been expressed regarding the fact that companies must use trade credit because banks deny them the access to bank credit. This paper explores this topic through a review of the theoretical debate on the relationship between both types of financing and an empirical analysis that uses various data sources on both types of funding in Mexico and other countries. The main finding is that there appears to be no conclusive evidence regarding the fact that trade credit levels are an indicator to identify the scarcity or abundance of bank credit. The results seem to be more consistent with the position that proposes a complex relationship between both funding options, considering that companies’ financial decisions are based on multiple factors.