Interest rates are often the first thing people look at when reviewing their mortgage, but the advertised interest rate is only part of the story. A home loan that works well for your day to day life balances a competitive rate, low ongoing fees and the repayment flexibility to pay off debt on your own terms.

Understanding how interest rate options work in New Zealand gives you the knowledge to choose what fits your household.

Fixed interest rates

A fixed rate gives you certainty by locking in your interest rate and repayment amount for an agreed term, usually between six months and five years.

• Predictable budgeting because your repayments stay identical for the entire term, protecting your household if market rates rise.

• Rates are largely influenced by wholesale swap rates in the money markets rather than direct changes to the official cash rate.

• Annual caps usually apply on how much extra you can pay off your balance without triggering an early repayment break fee.

Floating interest rates

A floating rate moves up or down as broader economic conditions and Reserve Bank monetary policy shift.

• Complete flexibility to make extra lump sum repayments, increase regular payments or pay off portions of your loan without break fees.

• Ability to link everyday transaction and savings accounts through an offset facility or revolving credit limit, lowering the balance you pay interest on every single day.

• Repayments can fluctuate whenever your lender changes their floating rates, which means budgeting for potential shifts.

Splitting your home loan

• You do not have to put all your eggs in one basket. Many homeowners choose a split structure, dividing their mortgage into multiple parts to get the benefits of both worlds.
• You might choose to fix the bulk of your borrowing for two or three years for peace of mind, while keeping a smaller amount on a floating rate or revolving credit facility. That way, you enjoy steady, predictable repayments while keeping the freedom to clear extra debt whenever you have spare cash.

Looking beyond the advertised rate

Focusing only on the lowest rate you see advertised can cost you more over the long haul if a loan lacks the features you need. When we compare lending across our panel of lenders, we look at the full picture:

• Upfront cash contributions from competing lenders to help offset transition costs.

• Ongoing account or facility fees that quietly add up over time.

• Early repayment terms and loan portability features if you decide to move house down the track.

• Account flexibility to offset your savings directly against your loan balance.

At Loan Market, we can look at your current setup, compare competitive options across our lender panel and help you find a loan suited to your circumstances.