Labour and National will be kicking off election year with their annual caucus retreats this week, and some MPs have already said it will be their last.
So far, eleven MPs across Labour, National, and the Greens have announced they won't be contesting the election.
And despite polls predicting a National victory, its retiring MP's say they have no regrets on their decision to leave.
Here's our political reporter Giles Dexter.
