An unrestricted access to the Internet, mobile devices, social applications, and offering shopping comment options via online stores and platforms encourages customers to generate online reviews about brands. That is why it became important to leam about the factors that motivate customers to create electronic word of mouth (eWOM). The survey aimed to check if there were links between the perceived brand value, perceived risk, brand trust, and consumers’ willingness to express opinions online about products bought online. Structural equation modelling (SEM) was applied to analyse the data from the study (340 respondents). Five of the six hypotheses were confirmed. The direct impact of the perceived brand value on generating eWOM was been established. The perceived product value has a more significant effect on brand trust than the perceived risk. The adverse effect of the perceived risk on the perceived brand value by consumers was also confirmed. It also turned out that trust in the brand had a more significant effect on the significance of eWOM than the perceived risk.