The Labour Party leader says his caucus has discussed potential coalition partners and agreed on the approach that should be taken after this year's election.
Phil Goff says no one in caucus asked him to rule out working with the New Zealand First leader Winston Peters, should he be returned to Parliament.
Mr Goff says the caucus is unanimous in its position on any post-election coalition deals.
Labour will make its decisions after the election in November on the basis of compatibility and policies that it wants to pursue for all New Zealanders.