Refinancing Your Home Loan in NZ: The Complete Guide

Everything you need to know about refinancing a home loan in NZ in 2026 - process, costs, cashback offers, and what to watch for.

Jessica - Proply Editorial Team 1 June 2026

Quick Answer: Refinancing means moving your mortgage to a new lender or restructuring it with your current one, usually to get a better rate, access equity, or change loan structure - expect $800-$1,500 in legal fees, possibly $700-$1,000 for a valuation, and potentially a break fee if you're leaving a fixed term early.

The Refinancing Process, Step by Step

Refinancing follows a similar shape to buying, minus the property search. You compare offers across lenders (or negotiate with your current one), apply for approval with the new lender, and once approved, your lawyer manages the discharge of your old mortgage and registration of the new one - all coordinated to happen on the same day so you're never without a loan in place.

reviewing refinance paperwork and figuresPhoto by Kelly Sikkema on Unsplash

What It Actually Costs

Expect $800-$1,500 in legal fees for a standard refinance, covering the discharge and re-registration of your mortgage. Some lenders require an updated property valuation, typically costing $700-$1,000. If you're still inside a fixed term, a break fee may apply, calculated based on the change in wholesale interest rates since you fixed and how much term remains.

  • Legal/conveyancing fees: $800-$1,500
  • Valuation (if required): $700-$1,000
  • Break fee (if leaving a fixed term early): varies significantly by situation
  • Bank discharge and new loan documentation fees: often smaller, lender-specific

$2,000-$4,000

Typical cashback offered by major banks to attract refinancing customers.

Up to 1.5%

Cashback as a share of mortgage balance seen in competitive periods.

2-4 years

Typical clawback window - repay early and the bank may claw back part of the cashback.

Common Questions, Answered

Is cashback worth chasing?
Often yes, but only after weighing legal costs, break fees, and clawback terms against the rate difference.
How long does refinancing take?
Typically 2-4 weeks from application to settlement of the new loan, similar to a standard purchase timeline.
Do I need a new valuation every time?
Not always - some lenders accept a recent valuation or automated valuation model instead.

Quick Summary

  • Refinancing costs $800-$1,500 in legal fees, plus a possible valuation fee.
  • Cashback offers can offset costs, but check clawback terms first.
  • Break fees apply if you leave a fixed term early - get a quote before committing.
  • The whole process typically takes 2-4 weeks once you've decided to switch.

Refinancing and Need Legal Support?

Proply can manage the legal side of switching lenders.

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