Homeowners could save more than $90,000 over the life of their mortgages by shopping around, according to an analysis of 95 floating home loans.
A survey by independent researcher Canstar found a difference of more than half a percentage point on the residential mortgage packages from 10 different providers.
Yesterday, the state-owned Kiwibank had the lowest floating rate of 5.60 per cent, while a BNZ loan had the highest rate of 6.19 per cent. There were higher rates offered for those who had a deposits of less than 20 per cent and BNZ did have packages with lower rates on the market.
Monthly mortgage repayments for a 30-year $300,000 loan for those paying the higher rate would be $1835, while the lower rate would require minimum monthly repayments of $1722 - a difference of $113 a month.
But Canstar general manager Derek Bonnar said if borrowers were to negotiate the lower rate with their provider, and keep up the repayments of $1835, they could knock off $93,000 and cut the term by more than four years. "The interest rate on your home loan remains one of the biggest factors affecting the cost of the loan over its lifespan," Mr Bonnar said.