Labour will not be doing any deals with other parties for electorates, leader Phil Goff says.
It has been reported that New Zealand First leader Winston Peters was considering standing in Te Atatu, formerly held by Labour's Chris Carter, which is to be contested this election by list MP Phil Twyford.
National has come to an arrangement with ACT over Epsom and with United Future in Ohariu.
Mr Goff this afternoon ruled out any deal to help Mr Peters win the seat even though, if he won, he would be able to bring into Parliament other MPs and provide Labour a possible support partner.
"Labour's not doing deals with anyone, we're not standing aside for any other party. We will be running a candidate in every electorate," Mr Goff said.
The party would campaign for local candidate and party votes in every electorate.
"No arrangement, no understanding, no deal. The people of New Zealand deserve to have a legitimate choice, there shouldn't be stitch-ups before the election between political parties to try to rort the MMP system. Actually we need to reform the MMP system so that can't happen."
Mr Peters has previously indicated he would not like to work with the Greens. Mr Goff said Labour would work with whoever was willing to promote its programme.
Prime Minister John Key has previously ruled out working with Mr Peters.
Meanwhile ACT leader Don Brash told the New Zealand Herald today that ACT would not stand in the marginal seat of New Plymouth to give National candidate Jonathan Young a better chance of winning.
However it had not agreed to similar arrangements in Waimakariri and Auckland Central.
National denied it had sought accommodations in the strategic seats.