RT Book, Section T1 International Fiscal Cooperation to Better Integrate Public and Private Efforts on Sustainability: The Case of Carbon Offset Credits A1 Grau Ruiz, María Amparo A2 Saraiva, R. A2 Pardal, P.A. AB Currently, carbon offset credits are gaining momentum in the voluntary and compliance markets. Many investors, private companies, or public entities look at them as a way to implement or supplement their decarbonization strategies. These tools are easily available to utilize for meeting the declared sustainability goals by compensating carbon emissions that are impossible or just hard to mitigate. At the same time, they can serve to comply with the regime of nationally determined contributions according to the Paris Agreement. However, they often pose challenges from a public and private perspective, both in a domestic or multinational scenario. There is a blatant lack of legal certainty concerning their treatment for tax purposes. This affects the agents involved in the different processes of the carbon offset credits’ lifecycle (their generation, trade, and use). The growing nature of this problematic situation simultaneously derives from qualitative and quantitative factors. A greater dose of international cooperation among the stakeholders is needed to provide balanced solutions between public and private interests. Special attention should be paid to the developing and developed countries’ positions. The following pages describe the state of the art and explain what the main concerns are with regard to the application of these credits in the framework of the existing tax systems. In many cases, carbon taxes are not mature enough, or their interaction with other economic instruments is not well defined. The innovative work of the United Nations Subcommittee on Environmental Taxation in this regard is reviewed. In an attempt to sort out the observed obstacles due to the configuration and features of the schemes up to date, some alternative proposals are mentioned. Final remarks stress that future regulations should not only facilitate but ensure a global positive environmental impact on society in line with the UN 2030 Agenda. Public finances, particularly, tax legislators and authorities have a decisive role to play in this uncharted area. PB Springer SN 978-3-031-49459-8 SN 2512-1308 SN 2512-1294 YR 2024 FD 2024 LK https://hdl.handle.net/20.500.14352/129981 UL https://hdl.handle.net/20.500.14352/129981 LA eng NO Grau Ruiz, M.A. (2024). International Fiscal Cooperation to Better Integrate Public and Private Efforts on Sustainability: The Case of Carbon Offset Credits. In: Saraiva, R., Pardal, P.A. (eds) Sustainable Finances and the Law. Economic Analysis of Law in European Legal Scholarship, vol 16. Springer, Cham. NO Ministerio de Ciencia e Innovación DS Docta Complutense RD 25 feb 2026