Despite consideration of future consequences as key for sustainability, the literature has not explained why individual variations in consideration of future consequences exist. Future consequences of decisions are important for sustainability because the benefits of sustainability goals might only be capitalized in the future, while their costs are incurred in the present. The aim of this study is to investigate the impact of the Big Five personality traits on individual variations of consideration of future consequences. This study is among the first to analyze this causal relationship using longitudinal data of 3,444 Dutch individuals. The empirical results highlight the importance of all Big Five personality traits either for short-term or for long-term consideration of future consequences. These findings contribute to the debate on the role of the future in sustainability decision-making by integrating psychology and future orientation literature.