Free NZ mortgage calculator
Mortgage Repayment Calculator New Zealand
Calculate your monthly mortgage repayment in New Zealand. Enter your property value, deposit, interest rate and loan term to see your repayment breakdown.
Enter your details
≈ $150,000
Include property tax & insurance
Adds estimated monthly totals to your payment
Monthly payment
$3,912
/month
Loan amount
$600,000
80.0% LTV
Total interest
$808,158
over loan term
Total repaid
$1,408,158
30 year term
Principal vs Interest breakdown
How this calculator works
New Zealand mortgages typically offer fixed-rate terms (commonly 1 to 5 years) and floating-rate options. This calculator shows repayments based on a consistent interest rate across the loan term — use it to compare what different rates or term lengths will cost you.
The RBNZ sets LVR (Loan-to-Value Ratio) restrictions that affect how much you can borrow. Owner-occupiers typically need a minimum 20% deposit, while investors face stricter requirements.
Your monthly repayment shown is the principal and interest component only. You'll also need to budget for council rates, building insurance, and any body corporate fees if purchasing an apartment.
Worked example
An NZ$750,000 property with 20% deposit at 6.8%
- 1Monthly rate: 6.8% ÷ 12 = 0.5667%
- 2Months: 30 × 12 = 360
- 3Monthly repayment ≈ NZ$3,921/month
- 4Total repaid: NZ$3,921 × 360 = NZ$1,411,560
- 5Total interest: NZ$1,411,560 − NZ$600,000 = NZ$811,560
Frequently Asked Questions
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Try calculatorDisclaimer: Calculations are estimates for general guidance only and do not constitute financial advice. Mortgage rates, LVR restrictions, and lending criteria vary by lender and may be subject to RBNZ requirements. Consult a registered financial adviser before making property decisions.