This study investigates the economic, environmental, and social impacts of implementing a Deposit Return System (DRS) for beverage containers in Spain. The DRS model involves consumers paying a small deposit on beverage containers, which is refunded when the container is returned for recycling. The study assesses how a DRS could reduce littering, increase recycling rates, and lower greenhouse gas emissions. It also examines the potential economic benefits, including job creation and reduced waste management costs for municipalities. Additionally, the study highlights the positive effects on public awareness and engagement with recycling practices. The findings suggest that a well-implemented DRS could significantly contribute to Spain’s circular economy and sustainability goals.