While the rapid adoption of digital payment systems has reshaped the way people conduct financial transactions today and may support potential pathways toward lowering environmental impact and developing a low-carbon economy, as digital payments start to supplant traditional cash-based modes of payment, their environmental footprint has become a matter of great concern. This chapter explores green innovation in digital payments by drawing on how such innovation-low-carbon practice and technology adoption can reduce the carbon footprint of these systems. The subject is very important in view of global efforts toward achieving the SDGs and transitioning into a more sustainable, eco-friendly financial sector. To that end, the chapter will look for opportunities to identify how best green innovation for digital payments should be integrated, focusing specifically on energy efficiency and environmental sustainability. It looks into some possible methods by which carbon emission through digital payments may be reduced, such as the adoption of renewable sources of energy, improving energy efficiency protocols, and factoring in carbon offsetting initiatives. This discussion is framed through examining policy and regulatory approaches that support green innovation within digital payment systems. Drawing on case studies from around the world, the chapter illustrates how government and institutional action can accelerate the greening of the financial sector. The analysis has shown that green digital payment is thus important to contribute to economic development, particularly in developing economies, where such an innovation may lead to both financial inclusion and environmental sustainability. This chapter concludes by calling for a multi-stakeholder approach wherein governments, financial institutions, technology providers, and consumers work in concert to ensure that digital payments help create a low-carbon future. In this way, by promoting green innovation, the financial sector can reduce its carbon footprint and contribute to broader sustainable development goals.