Complete Mortgage Guide — New Zealand

How Mortgages Work in New Zealand

The Reserve Bank of New Zealand’s Official Cash Rate (OCR) directly influences floating and short-term fixed mortgage rates. New Zealand banks fund a significant portion of their lending from overseas wholesale markets, so international funding conditions also affect rates. The RBNZ also uses LVR (Loan-to-Value Ratio) restrictions as a macroprudential tool, limiting the percentage of high-LTV lending each bank can do

Use our mortgage calculator to see how different rates and terms affect your monthly repayments.

Types of Mortgages Available

New Zealand offers floating rate (moves with the OCR — typically the highest rate), fixed rate (locked for 6 months to 5 years — most popular, with 1-2 year fixed being the most common choice), offset mortgages (floating rate offset by savings held in a linked account), and revolving credit (an overdraft facility secured against the property). Most Kiwi borrowers split their mortgage across multiple fixed-rate tranches at different terms to manage renewal risk

Read our mortgage types comparison for a detailed side-by-side analysis of each product.

How Much Can You Borrow?

Banks stress test at rates 2-3% above the current rate to ensure borrowers can handle increases. Serviceability assessments consider all income sources, existing debts, living expenses (using the Household Expenditure Guide), and the proposed mortgage payments. The Responsible Lending Code and CCCFA (Credit Contracts and Consumer Finance Act) require detailed affordability analysis

The maximum loan-to-value in New Zealand is Standard 80% LTV. First-home buyers may access 90-95% LTV through the First Home Loan (underwritten by Kāinga Ora). The RBNZ imposes speed limits: banks can have no more than 15% of new owner-occupier lending at LTV above 80%, and no more than 5% of investor lending above 65% LTV. These speed limits are adjusted periodically based on financial stability considerations. Loan terms extend up to Up to 30 years, with 25-30 years being standard. Most New Zealand mortgages are table loans (equal payments of principal and interest). Interest-only periods of up to 5 years are available for owner-occupiers, longer for investors.

The Application Process

Get pre-approval for confidence when house hunting — valid for 3-6 months. Provide ID (passport or driver’s licence), proof of income (payslips, employment agreement, or financial statements for self-employed), bank statements (3 months), details of assets and liabilities, and evidence of the deposit source. Comprehensive Credit Reporting means your full credit history is visible to all lenders. The bank conducts a registered valuation. A solicitor handles the mortgage documentation at settlement

Costs and Fees

Low-equity margin/premium of 0.25-1.0% added to the interest rate for LTV above 80%. Solicitor/conveyancer fees for the mortgage of $500-1,500. Registered valuation of $600-900. No stamp duty or transfer tax in New Zealand — a significant cost advantage. Early repayment break costs apply if you repay a fixed-rate loan before the term expires — these are calculated based on the bank’s cost of breaking the swap and can be substantial if rates have fallen

What Makes New Zealand’s Mortgage Market Unique

New Zealand’s absence of stamp duty makes property transactions significantly cheaper than in most comparable countries. The split-loan strategy is a distinctive Kiwi approach — borrowers divide their mortgage across multiple fixed-rate terms (e.g. one-third on 1-year, one-third on 2-year, one-third on 3-year fixed) so that different portions come up for renewal at different times, providing a natural hedge against rate movements

Refinancing Your Mortgage

Refixing (choosing a new fixed rate at term expiry) is the primary rate optimisation tool in New Zealand. At each refix date, you can choose a new term, switch portions between fixed and floating, or refinance to a different bank. Break costs apply if you break a fixed-rate lock early. When switching banks, ask the new bank about cash contributions (some offer $2,000-5,000 toward legal and switching costs). Compare rates at every refix — your bank’s rollover rate is negotiable

Read our refinancing guide for a step-by-step walkthrough.

Government Schemes and Support

First Home Grant provides up to $5,000 per person ($10,000 per couple) for new builds and $3,000 per person for existing homes. KiwiSaver first-home withdrawal lets you access your retirement savings (excluding the government $1,000 kick-start and member tax credits). The First Home Loan (through Kāinga Ora) enables 5% deposits through participating lenders. First Home Partner provided shared equity but has been wound down — check current status. Income and house price caps apply to all first-home buyer schemes

Check our government grants guide for the latest programmes and eligibility details.

Tips for Getting the Best Deal

Split your mortgage across multiple fixed terms to manage rate risk. Always negotiate at refix time — banks have discretion to offer lower rates than advertised, especially if you threaten to switch. Use KiwiSaver for your first home — it is one of the most powerful first-home buyer tools in the world, combining your savings, employer contributions, and government contributions. Consider an offset mortgage if you hold significant savings but want to keep them accessible

Next Steps

Use our mortgage calculator to model different scenarios, read our property buying guide for the full purchase process, or browse New Zealand FAQs for quick answers.