The results of a vote by Ngai Tuhoe members on a Deed of Settlement will be known on 14 May.
In March, the iwi and the Government initialled the Deed of Settlement, which includes a Crown apology and acknowledgement of Treaty of Waitangi breaches.
It also involves redress worth about $170 million, including a part of the Kaingaroa Forest near Rotorua.
Voting for iwi members closed on 8 May, after the deed was taken back to the people for ratification.
Ngai Tuhoe leader Tamati Kruger said voting packs were sent to about 8000 people.
He said iwi members need to wait until next Tuesday, when Election New Zealand will confirm the results.
Mr Kruger said Election New Zealand requires at least six days to look at special votes, as well as votes that were sent by post.