Bill English will not be making the same promise to leave the eligibility age for superannuation alone as his predecessor John Key did.
The National Party formally voted for the Deputy Prime Minister to take over from Prime Minister John Key on Monday.
Mr Key had a firm stance on the policy, promising to resign before lifting the eligibility age from 65.
In his first news conference on Monday, Mr English said he won't be taking the same stance.
"Well I'm not making the same pledge as the previous Prime Minister did. That was a product of its time where there was a need to establish trust, and I think it was a sound decision then because the election was followed by a recession which could've caused real insecurity for older people."
Mr English says the Government has built credibility as one that will support those who are dependent on the state for income.
"We won't put them in a worse position; we'll work to put them in a better position - that is currently the policy."