The links between the political agendas of climate change, the energy transition, and energy poverty are multiple, complex, and overlapping. In line with European Union policy demands, Member States are implementing the various policies necessary to address these agendas, with an emergent focus on their synergistic potential. Successful implementation requires cooperation between multiple actors, yet little research exists on how diverse actors view the agendas. This limits the ability to account for diverse perspectives in carbon neutrality policy and related insights on trade-offs and competition points between the climate change, energy transition, and energy poverty agendas. We analyse perspectives on agenda interactions based on 39 expert interviews on Portuguese carbon neutrality agendas. Our case study results suggest strong agreement regarding theoretical linkages of the agendas but mixed views on whether this transpires in practice. These perceived inconsistencies reveal several unresolved competing agendas in Portuguese carbon neutrality policies. We also reveal important influences on citizen agency in the decarbonisation agendas. We argue these insights are valuable for current policy approaches, which promote decarbonisation policies that incorporate energy poverty and rely strongly on citizen participation.