Sonny Tau has taken a "leave of absences" from all his roles at the Ngapuhi Runanga - including chairman of the group.
Te Runanga A Iwi O Ngapuhi said that as of Monday Mr Tau would be taking three months' leave from his position as chairman and trustee of the Runanga because of "personal reasons".
Mr Tau did not return the Advocate's request for comment on the leave.
The decision means during his time away Mr Tau will also be absent from his only position on Tuhoronuku - Ngapuhi's mandated Treaty negotiating authority - as Runanga representative.
In June, he stepped down as Tuhoronuku chairman after allegations he was found with kukupa at Invercargill Airport and last month he made a last-minute decision to pull out of the board's chair elections.