This research investigates the intricate relationship between financial openness, natural resources, and carbon neutrality in the N-11 countries. It provides insights into how environmental tax and innovation can drive carbon neutrality in these nations, thus advancing our understanding of the nexus among financial openness, natural resources, and carbon neutrality. The study aims to offer policymakers perspectives on formulating policies to foster sustainable economic development and environmental conservation in the N-11 nations. The discourse highlights the environmental implications of foreign direct investment (FDI) and trade openness, revealing a complex interplay between economic development, technological innovation, and environmental sustainability. While FDI can facilitate technological transfers and managerial advancements that enhance resource efficiency and promote environmentally friendly practices, its environmental impact varies based on regulatory frameworks and enforcement mechanisms. In countries with weak environmental regulations, FDI may lead to negative outcomes such as pollution hotspots, resource depletion, and ecosystem degradation. Similarly, trade openness can exacerbate environmental degradation through increased production, energy consumption, and waste generation. However, both FDI and trade openness can contribute positively to environmental sustainability when coupled with effective environmental policies, investment in green technology, and the promotion of sustainable practices. Thus, policymakers must strike a balance between economic development and environmental protection by implementing stringent environmental regulations, promoting clean technology transfer, and fostering sustainable development practices domestically and internationally. This research offers valuable insights for policymakers aiming to navigate the complexities of achieving carbon neutrality while ensuring sustainable economic growth in the N-11 countries.