ChatGPT · National
We already own our home and want to buy our first rental property. Which lenders would you suggest we compare for the rental mortgage?
For a first rental property in New Zealand, I’d start by comparing the big four banks — ANZ, ASB, BNZ and Westpac — alongside Kiwibank and one or two lenders through an independent mortgage adviser.
Because you already own your home, the key question isn't just who offers the lowest rental mortgage rate. It's which lender will let you use your existing home equity most effectively, assess your household income and expected rent favourably, and structure the loans without unnecessarily putting your home at risk.
Which lenders I'd compare first
- ANZ New Zealand
A strong starting point if you want to use equity in your existing home. ANZ explicitly discusses equity release for investment purchases and offers interest-only options for eligible investors. Investment propertyInterest-only home loans for investment properties
Compare: equity release, interest-only terms and fixed-rate pricing.
ANZ investment property lending
- ASB
Worth comparing if you want to manage your existing mortgage and investment borrowing together. ASB offers investment lending and tools to assess equity across properties. Investment property loan - Invest in NZ property
Compare: total borrowing capacity, loan splits and repayment flexibility.
- BNZ
Particularly worth including because BNZ has a dedicated property investment team and states that it recognises 80% of rental income in its lending assessment. Property investment
Compare: how rental income is assessed and how much you can borrow.
BNZ residential property investment
- Westpac New Zealand
Another worthwhile major-bank quote, particularly for comparing your equity position, borrowing capacity and investment loan structure. Property investment
Compare: overall package pricing, fees and how existing debts affect approval.
- Kiwibank
Include Kiwibank as a fifth bank quote to test whether its rates and lending assessment are more competitive for your circumstances. Its property investment calculator specifically considers equity and rental-property borrowing. Property investment calculator | Home loans
Compare: effective interest rate, fees and borrowing capacity.
Should you also compare non-bank lenders?
Potentially, yes — especially if the major banks won't lend enough, your income is complex, or the property type is less straightforward.
- Welcome Finance — a specialist option for property investment and equity-release finance through mortgage advisers. Its loans may be shorter-term and priced differently from standard bank mortgages. NZ Non-Bank Mortgage Lending for Advisers Welcome Finance
- An independent mortgage adviser — ask for comparisons across multiple banks and relevant non-bank lenders, rather than just a quote from your current bank. Loan Market NZ describes its investment lending service and access to bank and non-bank options. Investment Property Loan
I'd start with the five banks and only widen the search if there's a clear reason.
Three things that matter more than the headline rate
- How you use your existing home equity
You may not need all of the rental property's deposit in cash. Depending on your current mortgage and the value of your home, a lender may allow you to borrow against some of your existing equity.
For a standard residential investment property, the Reserve Bank's current rules generally mean a 30% deposit is the benchmark. There are limited exceptions for high-LVR lending, and banks can impose stricter criteria. Understanding loan-to-value restrictions - Reserve Bank of New ZealandLoan-to-value ratio restrictions - Reserve Bank of New Zealand
- How the loans are structured
Ask whether the borrowing for the rental deposit can be kept in a separate loan split from your owner-occupied mortgage. Discuss the proposed security arrangements with your adviser and solicitor, including whether the bank would take security over both properties.
- How much you can actually afford to borrow
Banks assess existing mortgage payments, other debts, household expenses and only a portion of expected rent. Debt-to-income restrictions also apply to bank lending. The Reserve Bank's investor DTI threshold is generally seven times gross annual income, although banks can still decline applications below that threshold. Understanding debt-to-income (DTI) restrictions - Reserve Bank of New Zealand
My recommendation
Get the same scenario priced by ANZ, ASB, BNZ, Westpac and Kiwibank, ideally through an adviser who can compare their actual lending offers. Ask each for the proposed structure, total fees, fixed-rate options and maximum borrowing amount — not just the advertised interest rate.
To narrow this down to the lenders most worth approaching first, how much equity do you have in your current home, approximately, and how much is still owing on its mortgage? That will help establish whether the main challenge is finding the deposit or getting sufficient borrowing capacity.
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Captured 11 October 2026