Tatiana Falcão is a senior policy expert in international tax and environmental taxation. She is a founding member of the United Nations Subcommittee on Environmental Taxation, a member of the Scientific Committee of the Africa Tax Research Network (ATRN) of the Africa Tax Administration Forum (ATAF), and a columnist at Tax Notes International.

Tatiana has worked in and for several Intergovernmental organizations, including the Coalition of Finance Ministers for Climate Action, the World Bank, UNDP, UNEP, UN DESA, as well as the IMF and the ILO.

Tatiana is the author of a proposal for Multilateral Carbon Tax treaty (MCTT), originally published in 2019 and revisited in 2024. The MCTT is currently being considered for implementation by the Regional Platform for Tax Cooperation for Latin America and the Caribbean (PTLAC).

Tatiana is a graduate of the Vienna University of Economics and Business (AU, Ph.D), the University of

Cambridge (UK, LL.M) where she was the editor and treasurer of the Cambridge Law Review, and New

York University (USA, LL.M). Her bachelor’s in law was obtained at Universidade Candido Mendes (BRA),

summa cum laude.