How can Māori health providers measure the impact and social value of their activities in complex environments? Can a tool such as Social Return on Investment (SROI), developed overseas, be useful in a kaupapa Māori setting? Te Hauora o Tūranganui a Kiwa Ltd(TH), a Gisborne Māori health provider, wants to maximise outcomes from investments while maintaining Māori values. Any tool used needs to capture their success in building a web of reciprocal relationships that generates cultural and social capital, wellbeing and health. TH and University of Otago researchers will work in partnership to assess whether SROI is an appropriate, practicable, useful, and affordable tool to embed in a kaupapa Māori setting. Māori health providers need a tool, capable of measuring value (defined by Māori), to tell their story of value creation. This tool may assist funders with grasping the complexities of providers’ activities and the multiple, interwoven benefits they provide.