Mortgage rates are one of the most watched numbers in New Zealand personal finance, and for good reason. On a $700,000 loan over 30 years, the difference between 5.5% and 6.5% is about $450 a month, or roughly $162,000 over the life of the loan.
This guide explains how NZ mortgage rates are set, what the main banks advertise, and how much a rate difference costs.
How NZ Mortgage Rates Are Set
The Official Cash Rate (OCR)
The Reserve Bank of New Zealand (RBNZ) reviews the OCR at scheduled meetings through the year. The OCR is the interest rate banks pay to borrow overnight funds from the RBNZ, and it flows through to consumer mortgage rates.
When the OCR rises, mortgage rates typically rise. When the OCR falls, mortgage rates follow — though the timing and magnitude vary by bank and rate type.
Recent OCR history:
| Date | OCR |
|---|---|
| Late 2021 | 0.25% (historic low) |
| Mid 2023 | 5.50% (peak) |
| Late 2024 | 4.25% (cutting cycle begins) |
| February 2026 | 2.25% (held) |
Wholesale swap rates
Fixed mortgage rates are more closely linked to wholesale swap rates than the OCR directly. A swap rate is the market’s expectation of where interest rates will be over a given period. If markets expect the OCR to fall over the next two years, 2-year swap rates fall — and banks can fund 2-year fixed mortgages more cheaply.
This is why fixed rates sometimes move independently of OCR decisions — the market has already priced in expected future moves.
Bank funding costs and competition
Banks also fund mortgages through term deposits and offshore wholesale markets. When offshore funding becomes more expensive (for example, during periods of global market stress), banks may increase rates even without an OCR change. Competition between lenders also influences rates — in a competitive market, banks discount to attract quality borrowers.
Major Bank Advertised Rates (April 2026 Snapshot)
These rates were recorded in April 2026 and have not been re-checked against the banks’ rate pages since, so treat them as an example of how the banks’ rates line up, not as current offers. Current rates are on each bank’s own website and in the rate tables listed at the end of this page.
Major bank fixed rates (owner-occupier, ≥20% deposit)
| Fixed term | ANZ | ASB | BNZ | Westpac | Kiwibank |
|---|---|---|---|---|---|
| 6 months | ~6.19% | ~6.09% | ~6.09% | ~6.15% | ~6.19% |
| 1 year | ~5.59% | ~5.55% | ~5.55% | ~5.59% | ~5.55% |
| 2 years | ~5.45% | ~5.39% | ~5.39% | ~5.45% | ~5.39% |
| 3 years | ~5.55% | ~5.49% | ~5.49% | ~5.55% | ~5.49% |
| 4 years | ~5.79% | ~5.75% | ~5.75% | ~5.79% | ~5.75% |
| 5 years | ~5.89% | ~5.85% | ~5.85% | ~5.89% | ~5.85% |
| Floating | ~7.09% | ~7.09% | ~6.99% | ~7.09% | ~6.99% |
Rates shown are carded (advertised) rates. Actual rates negotiated through a broker or directly may be 0.1%–0.3% lower.
Non-bank lenders
Non-bank lenders (such as Resimac, Pepper Money, Liberty, NZHL) typically charge rates 0.5%–1.5% above major bank rates in exchange for more flexible lending criteria. They mainly lend to borrowers whom a mainstream bank has declined.
Low-deposit (high-LVR) premium
Borrowers with less than 20% deposit typically pay a premium of 0.25%–0.75% above standard carded rates, depending on the lender and LVR. The exception is borrowers using the Kāinga Ora First Home Loan, where the government underwrites the low-deposit risk and the lender charges standard rates.
How the Rate Types Compare
| Rate type | How it works | Main trade-off |
|---|---|---|
| Short-term fixed (6 to 12 months) | Rate set for a short term, then refixed at the rate on offer then | Repayments can change at each rollover |
| Medium-term fixed (2 to 3 years) | Repayments set for longer | Rate stays put if market rates fall; break fee to leave early |
| Long-term fixed (4 to 5 years) | Longest certainty on repayments | Break fees can be larger with more of the term left |
| Floating | Rate can change at any time; no break fee for lump sums | Repayments rise if the bank raises its floating rate |
| Split | Loan divided into parts on different rates and terms | More rollover dates to manage |
Which mix suits a household depends on how much a repayment increase it could absorb and whether it plans lump-sum repayments, not on rate forecasts alone. For a detailed breakdown, see our fixed vs floating mortgage guide.
How Much Does a 1% Rate Difference Cost?
The impact of even a small rate difference compounds significantly over the life of a mortgage.
| Loan amount | At 5.5% (monthly) | At 6.5% (monthly) | Difference/month | Difference over 30 years |
|---|---|---|---|---|
| $500,000 | $2,839 | $3,160 | $321 | $115,702 |
| $700,000 | $3,975 | $4,424 | $450 | $161,983 |
| $900,000 | $5,110 | $5,689 | $579 | $208,264 |
Calculations assume 30-year term, monthly repayments, rate fixed for full term (illustrative only).
Small differences in rate add up over a long loan term.
Getting a Better Mortgage Rate
Banks can price below their advertised (carded) rates, and the rate offered depends on things like your deposit, income and credit history. Our guide to getting a better mortgage rate covers comparing lenders, negotiating at rollover and what lenders look at.
Rate Types Explained
Carded rates
The rates publicly advertised by banks on their websites. These are the starting point — not the final offer. Most banks will negotiate below carded rates for borrowers with strong applications.
Special rates
Some banks offer “special” rates for borrowers meeting specific criteria (e.g., LVR below 80%, minimum loan size). These are typically 0.10%–0.30% below carded rates.
Back-book vs new lending rates
Banks sometimes offer better rates to new borrowers than to existing customers who don’t actively negotiate at rollover. Comparing your rate with what new borrowers are offered shows whether there is a gap.
First Home Buyers and Mortgage Rates
First home buyers face an additional consideration: deposit size affects the rate you qualify for.
- Less than 10% deposit: Very limited mainstream bank options; non-bank lenders only (higher rates)
- 10%–20% deposit: High-LVR premium of 0.25%–0.75% applies at most banks
- 20%+ deposit: Standard carded and special rates available
The Kāinga Ora First Home Loan is available to eligible first home buyers with as little as 5% deposit and charges standard bank rates — the government underwriting removes the low-deposit premium. Income and house price caps apply.
Many first home buyers combine KiwiSaver withdrawal with their savings to reach a larger deposit and secure better rates. See how much KiwiSaver you can withdraw and first home eligibility for details.
Mortgage Rate Outlook
The RBNZ began cutting the OCR in August 2024 and held it at 2.25% at its February 2026 review. What happens next depends on OCR decisions, global bond yields, NZ inflation and the housing market. Forecasts change often and are not guarantees; our mortgage rate forecast page covers what forecasters publish.
Where to check the latest data
Rates, fees and returns change often. Before deciding, check current figures yourself:
- interest.co.nz mortgage rates: tables of current floating and fixed home loan rates.
- The provider's own website: has its current rates, fees and full terms; these change more often than any comparison page.
- Financial Service Providers Register: shows whether a provider is registered to offer financial services in New Zealand.
Frequently Asked Questions
When do NZ mortgage rates change? Floating rates can change at any time following an OCR decision (usually within 1–2 weeks of an RBNZ announcement). Fixed rates change more frequently — sometimes multiple times per week — as wholesale swap rates move. If you’re close to applying, a rate lock through your broker can hold a rate for 30–60 days.
Which NZ bank has the lowest mortgage rates? No single bank is consistently cheapest across all terms. Rates change frequently and vary by term, LVR, and loan size. The only reliable approach is to compare current rates across multiple lenders at the time you’re deciding.
What is the difference between fixing for 1 or 2 years? A 1-year fix rolls over sooner, so the rate changes to whatever is on offer a year from now; a 2-year fix holds the repayment for longer but carries a break fee if you leave early. The choice comes down to how much a repayment change at rollover would affect your budget, since no rate forecast is certain.
What is a rate lock? A rate lock allows you to secure a specific interest rate for a set period (usually 30–60 days) before settlement. This protects you from rate rises during the period between loan approval and settlement. Not all lenders offer rate locks; ask when getting pre-approval.
Can I negotiate a better mortgage rate? Yes, particularly at rollover. The advertised (carded) rate is a starting point. Borrowers with 20%+ equity, stable income, and clean credit regularly negotiate 0.10%–0.25% below carded rates, or can achieve this through a mortgage broker.
What is a comparison rate? A comparison rate (also called an effective rate or APR) rolls the interest rate and fees into a single annualised figure for easier comparison. New Zealand does not mandate comparison rate disclosure in the same way Australia does, so comparing total loan costs (interest plus fees) is important rather than headline rate alone.
What to Read Next
- Fixed vs Floating Mortgage NZ — detailed comparison guide
- Fixed Rate Mortgage Guide NZ — how fixed rates work in depth
- Getting a Mortgage in NZ — the full application process
- Getting a Better Mortgage Rate: comparing and negotiating rates
- How Home Loans Work in NZ — repayment mechanics explained
- Refinancing Your Mortgage NZ — when to switch lenders
- First Home Buyer Guide NZ — first home pathway