What Is the 5% Threshold in New Zealand Elections?

The threshold is the minimum a party needs before it gets any seats from the party vote. In New Zealand a party must win at least 5% of the nationwide party vote, or win at least one electorate seat. A party that misses both gets no seats, even with tens of thousands of votes.

The threshold is the minimum a party needs before it gets any seats from the party vote. In New Zealand a party must win at least 5% of the nationwide party vote, or win at least one electorate seat. A party that misses both gets no seats, even with tens of thousands of votes.

In one minute

5% of the party vote, or one electorate win.

Miss both and the party gets zero seats.

Those votes are then shared among qualifying parties.

People disagree about whether 5% is too high.

Why have one at all

Without a threshold, a party with 0.9% of the vote would win a seat. Parliament could end up with a dozen tiny parties, and forming a stable government would get very hard.

The threshold is a trade-off between representing everyone exactly and being able to govern at all.

The electorate exception

If a party wins one electorate seat, it collects its full proportional share even if it is under 5%. So a party on 3% with one electorate win can bring in extra list MPs.

Some people think this is a fair safety valve. Others think it is unfair that a local win can override a national rule. Both views are widely held.

Questions people ask

Has the threshold ever changed?

It has been 5% since MMP began, though reviews have suggested lowering it.

What is a wasted vote?

A party vote for a party that ends up with no seats. It does not help that party win representation.