The article investigates the impact of REDD+ programs on indigenous livelihoods. Referring to Ferdinand Tönnies’ distinction, it argues that the involvement of indigenous groups with REDD+ fosters a transition from locally oriented, self-sustaining “communities” towards individualistic and market-oriented “societies” that are integrated into the global REDD+ architecture. Although international REDD+ initiatives attempt to integrate indigenous perspectives with the help of consultative procedures, the necessary conditions for a context-sensitive transformation remain unfulfilled, as long as indigenous groups do not obtain secure property titles for their lands. The inherent contradictions of the prevailing REDD+ approach create social tensions and dilemmas both for the participating indigenous groups and the initiators of these projects. Based on semi-structured interviews and participant observations, these dynamics are illustrated by the interplay between indigenous groups, public officials, non-governmental organizations (NGOs), and international REDD+ financers in Mato Grosso (Brazil).