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NZ Mortgage Repayment Calculator

Calculate New Zealand mortgage repayments for weekly, fortnightly, or monthly payment schedules. See total interest paid over the life of the loan and compare different terms.

Regional Rule Context

JurisdictionNew Zealand
CurrencyNZ$ (NZD)
Effective fromApr 18, 2026
Version1.0
Last reviewedApr 18, 2026
Next reviewApr 1, 2027
Source: Standard amortisation formulaView

New Zealand Rates and Rules

Standard amortisation formula for fixed-rate mortgage repayments. Supports weekly, fortnightly, and monthly payment frequencies. Does not include rates, insurance, or body corporate fees.

Enter Values

Total mortgage amount borrowed

Fixed or current floating rate

Result

Enter values above and click Calculate to see your result.

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Uses the standard amortisation formula. NZ banks offer fixed rates (1 to 5 year terms) and floating rates. Most home loans are 25 or 30 year terms. This calculator covers principal and interest only.

Disclaimer: This calculator uses publicly available rules effective as of Apr 18, 2026 (version 1.0). Results are for informational purposes only. Always verify with official sources or a qualified professional. Last reviewed: Apr 18, 2026.

Formula

M=Pr(1+r)n(1+r)nāˆ’1M = P \frac{r(1+r)^n}{(1+r)^n - 1}

The standard amortisation formula calculates the fixed periodic payment needed to repay a loan with interest over the full term. P is the principal, r is the periodic interest rate, and n is the total number of payments.

New Zealand FAQs

What is a typical NZ mortgage term?

Most New Zealand home loans are structured over 25 or 30 years. Shorter terms mean higher repayments but significantly less total interest.

Is fortnightly better than monthly?

Fortnightly payments result in 26 half-payments per year (equivalent to 13 monthly payments), which reduces total interest and shortens the loan.

Does this include rates and insurance?

No. This calculates principal and interest only. Council rates, house insurance, and body corporate fees are additional costs.

Can I embed this NZ Mortgage Repayment Calculator on my website?

Yes. Click the "Embed" button at the top of this page to customize the size, colors, and theme, then copy the iframe code. Paste it into any HTML page, WordPress site, or CMS. It is completely free, requires no signup, and works on all devices. You can also visit our embed guide at calculory.com/services/embed-calculators for more details.

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