Prime Minister Bill English has stated there may be changes to Superannuation but said voters will know of his intentions before election time.
In an interview with Lisa Owen on Three's The Nation, English said there might be a "reset" around the existing policy.
Former Prime Minister John Key was protective of the current policy and famously said he would resign if eligibility was tightened.
The current policy means every New Zealander, over the age of 65, can receive a weekly
Superannuation benefit, regardless of wealth or income.
In the interview with Owen, English said on several occasions he hadn't made the "same undertaking" as the former Prime Minister.