In June former Treaty Negotiations Minister Chris Finlayson and the Office of Treaty Settlements withdrew from the process until Ngapuhi worked out a way forward.
The move was welcomed by Tuhoronuku, which said there had been too much government intervention already, and lamented by Te Kotahitanga, which called it "just another setback in a long line of setbacks by the Crown".
Ngapuhi is the country's largest iwi and there are concerns that the lack of a settlement is holding its people back.
When it finally is reached, a settlement could be worth more than $500 million and is expected to bring huge economic benefits for Ngapuhi.
The Crown recognised Tuhoronuku as having a valid mandate to negotiate on behalf of all Ngapuhi, but this was challenged by Te Kotahitanga in the Waitangi Tribunal.
The Waitangi Tribunal found the structures of Tuhoronuku undermined hapu rangatiratanga.
Documents released under the Official Information Act show Ngapuhi received $6,052,823.01 of claimant funding from the Office of Treaty Settlements since the beginning of the Ngapuhi mandate consultation process in 2009.
A spokeswoman for Treaty Negotiation Minister Chris Finlayson said the funding to date reflected that Ngapuhi is the country's largest iwi. She said the Crown worked with Tuhoronuku and Te Kotahitanga, as well as Ngapuhi more broadly, to try to address flaws mentioned in the Waitangi Tribunal report.