National says the decision to extend the parliamentary and local elections to four years needs to be decided by the public and not the Government of the day.
As part of the Labour and the Green's confidence agreement confirmed today - the Government also states it wants to work with political parties from across Parliament - including the Opposition - on issues that affect democracy including the length of the parliamentary term, the Electoral Commission's 2012 recommended changes to MMP and the electoral finance law.
But National's electoral law spokesman Dr Nick Smith said while National was open to extending it, he warned the electoral law should not be a "play thing" and the decision should be made by the public.
"National is open to extending the term to four years for parliamentary and local elections, but the decision must be one made by New Zealand voters by way of a referendum, not decided by MPs alone."
During the second leaders' debate in the run-up to the October election, Prime Minister Jacinda Ardern and National leader Judith Collins both said they supported a move from a three-year to four-year term.