This paper investigates the effects of attitudes towards sustainable consumption and sustainable behaviours. Income as the control variable and gender, age, assets, and educational level as moderators were included. To achieve the aims of the study, a critical literature review, exploratory factor analysis, confirmatory factor analysis, and structural equation modelling were performed. Data were obtained using the CAWI technique on a sample of 1200 adult consumers. The findings show that attitudes towards sustainable consumption are positively associated with sustainable behaviours, and that income significantly determines dimensions of attitudes towards sustainable consumption and sustainable behaviours. Additionally, the relationships between income, dimensions of attitude towards sustainable consumption, and particular sustainable behaviours in groups distinguished by gender, age, property ownership, and education level were confirmed.