Mortgage Rates NZ: ANZ, BNZ and How to Choose the Right Home Loan

Mortgage rates are one of the biggest levers on the true cost of buying a home in New Zealand, and with the big banks repricing regularly in response to Reserve Bank policy, a deal that looked sharp six months ago may no longer be the best option. This guide explains how ANZ and BNZ home loan rates actually work, what drives them, and how to structure your loan so you pay as little interest as possible over its life. It is general information, not financial advice.

How mortgage rates work in New Zealand

Every advertised home loan rate is built on top of a bank’s cost of money, which in turn tracks the Official Cash Rate (OCR) — the benchmark interest rate set by the Reserve Bank of New Zealand (RBNZ). In September 2026 the RBNZ lifted the OCR to 2.75%, its second consecutive rise, so borrowing costs have been edging up rather than falling. When the OCR and wholesale swap rates move, fixed and floating mortgage rates usually follow within days. You can track the current cycle in our guide to NZ interest rates in 2026, and read the central bank’s own commentary at rbnz.govt.nz.

A rate card usually shows one floating (variable) rate plus a series of fixed rates for terms from six months to five years. Fixing locks your rate and repayments for the chosen term; floating moves with the market but lets you make extra repayments freely. To see how different rates and terms change your repayments, use our home loan calculator guide, and for the mechanics of switching lenders our refinancing guide goes deeper.

ANZ mortgage rates: special vs standard

ANZ is New Zealand’s largest home-loan lender, so its pricing moves are closely watched and rivals often follow within days. ANZ publishes two tiers of fixed rate: special and standard. Special rates are meaningfully lower, but they generally require at least 20% equity, an ANZ transaction account with your salary credited to it, and they may not stack with other promotions. A borrower who does not meet those conditions — for example a first-home buyer with a 10% deposit — is offered the higher standard rate. Over a 25–30 year loan even a 0.4 percentage-point gap compounds into tens of thousands of dollars, so it pays to confirm exactly which tier you qualify for. You can see ANZ’s published rates and criteria at anz.co.nz, and model fixed and floating splits with the ANZ home loan calculator guide.

When a fixed term ends, the loan rolls onto the higher floating rate unless you actively refix. ANZ lets you lock in a new rate up to 60 days before your current term expires, so set a reminder and plan ahead rather than drifting onto floating by default.

BNZ and the TotalMoney offset

BNZ consistently competes at the sharp end of the market and deserves equal attention. Like ANZ it offers fixed terms from six months to five years, with pricing that reflects your loan-to-value ratio (LVR) — borrowers above 80% typically face a higher rate or a low-equity margin, a direct consequence of RBNZ capital rules. Its standout feature is the TotalMoney offset mortgage: the balances in your linked BNZ accounts (you can connect up to 50, including family members’) are offset against your loan when interest is calculated. Put $30,000 of savings against a $500,000 mortgage and you effectively pay interest on only $470,000 — a powerful tool for disciplined savers who want their cash to stay accessible. We explain the mechanics in our offset account guide. ANZ, by contrast, does not offer an offset product; its flexible option is a revolving-credit facility instead.

Fixed, floating and splitting your loan

The lowest headline rate is rarely the whole story — how you structure the loan matters just as much. Fixing gives certainty: your rate and repayments are locked, protecting you if rates rise, but breaking the term early can trigger a break fee. Floating is more flexible — unlimited extra repayments and redraw, no break fee — but carries a higher rate. Many New Zealand borrowers split their mortgage: part fixed for certainty, part floating or on a different term for flexibility. Fixing 60% on a two-year term and leaving 40% floating, for instance, lets you throw a bonus at the loan without break costs. Splitting across two fixed terms (say half on one year, half on two) is also a sensible hedge when no one can reliably predict where rates head next.

Choosing the right mortgage for you

Weigh these factors, not just the advertised number:

• Your equity position — the single biggest lever. At 20%+ you reach special rates; below that you pay a premium. If you are close, building the deposit a little more can pay for itself.
• Fixed-term length — shorter terms let you refix sooner if rates fall; longer terms protect you if they rise.
• Your income and cash flow — if your income is variable (self-employed, contract or commission), a floating or revolving facility may suit you better than a rigid fixed loan.
• Your plans for the property — selling within two years? A three-year fix could expose you to a large break fee. Factor your holding period into the term.
• Independent advice — going direct shows you one bank’s products; a licensed mortgage adviser can compare across ANZ, BNZ, ASB, Westpac and non-banks, and must act in your best interests.

For independent, non-commercial analysis of bank mortgage products, consumer.org.nz is a useful cross-check.

First-home buyers: extra considerations

First-home buyers have extra tools. The First Home Loan, underwritten by Kāinga Ora, lets eligible buyers borrow with as little as a 5% deposit and pays no low-equity premium — but it is offered only through participating lenders such as Westpac, The Co-operative Bank, SBS Bank, Unity and several credit unions, not ANZ or BNZ, and income caps apply ($95,000 for a single buyer, $150,000 combined). A KiwiSaver first-home withdrawal is the other key lever: if you qualify, you can withdraw almost your entire balance — you must leave at least $1,000 in the account — to put toward your deposit, which may help you reach the 20% mark and better pricing. Our first-home buyer guide covers the eligibility detail in full.

Practical steps before you apply

A little preparation goes a long way:

• Check your credit file (via Centrix or Equifax) and correct any errors.
• Work out your borrowing capacity, remembering banks test serviceability at a test rate well above the advertised one.
• Gather your documents — payslips, bank statements and existing debts, plus tax returns if self-employed.
• Get conditional pre-approval so you know your ceiling before you bid.
• Compare at least two lenders — even if you bank with ANZ, get a BNZ quote; on a $700,000 loan a 0.2% difference is roughly $1,400 a year.
• Read the fine print on break fees, cash-back clawbacks and account requirements.

A free, independent way to run the numbers is Sorted’s mortgage calculator.

The bottom line

ANZ and BNZ are both strong, well-capitalised lenders, and on any given day the gap between their specials may be tiny. What makes a lasting difference is the right structure, a solid equity position and good advice — not chasing the lowest headline number. Understand your equity and income profile, model your scenarios, and seriously consider a licensed mortgage adviser before you sign. The New Zealand mortgage market is competitive; use that competition to your advantage.

Disclaimer: This article is general information about mortgage rates in New Zealand, not financial advice and not a recommendation of ANZ, BNZ or any lender. Rates, special-rate criteria, product features and lending policies vary by lender and change frequently — always confirm current rates directly with the bank or a licensed adviser, and compare the full cost (rate, fees, break costs and conditions) before committing.

Frequently asked questions

What’s the difference between ANZ’s special and standard rates?

Special rates are meaningfully lower but typically require at least 20% equity and your salary credited to an ANZ transaction account, and they may not combine with other offers. If you don’t meet those conditions — such as a first-home buyer on a small deposit — you are offered the higher standard rate. Over the life of a loan the gap adds up, so confirm which tier you qualify for.

Should I fix or float my mortgage?

Fixing locks your rate and repayments for a set term, protecting you if rates rise but charging a break fee if you exit early. Floating is more flexible (extra repayments, redraw, no break fee) but at a higher rate. Many borrowers split their loan across both, or across two fixed terms, to balance certainty and flexibility.

What is BNZ’s TotalMoney offset?

It is an offset mortgage where the balances in your linked BNZ transaction and savings accounts are subtracted from your mortgage balance when interest is calculated. So $30,000 in savings against a $500,000 mortgage means you pay interest on only $470,000, reducing interest costs while keeping your savings accessible. ANZ does not offer an offset product.

How does my deposit affect my mortgage rate?

Your loan-to-value ratio is the biggest lever on your rate. With 20%+ equity you reach the best special rates; below that you typically pay a premium (sometimes 0.5% or more) or a low-equity margin, because banks hold more capital against high-LVR lending. Building your deposit to 20% can meaningfully lower your rate.

Can first-home buyers get a mortgage with a small deposit?

Yes. The First Home Loan (underwritten by Kāinga Ora) allows as little as a 5% deposit through participating lenders — currently banks and credit unions such as Westpac, The Co-operative Bank and SBS, though not ANZ or BNZ — and you can use a KiwiSaver first-home withdrawal (leaving at least $1,000 in the account) toward your deposit. The trade-off is that a sub-20% deposit usually means a higher rate, so build that into your affordability sums.