Under the 2004 Fisheries legislation Ngāti Raukawa was required to establish a Mandated iwi Organisation so that it could receive Treaty of Waitangi Fisheries Settlement assets. The Settlement assets were based on population and length of coastline.
On the 11 March 2007 the iwi agreed to set up such a body. This was confirmed at the AGM of Te Rūnanga o Raukawa in 2007 where it was resolved to set up an organisation to receive Fisheries Settlement Assets and manage them on behalf of the iwi.
Raukawa ki te Tonga Trust is this body, as ratified in September 2010. The Trustees manage and administer the Trust Fund to benefit Raukawa ki te Tonga members through the expression of kaupapa tuku iho. The Trustees meet in Ōtaki every 6 – 8 weeks to deal with the business of the Trust and report to the members annually.