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We own our home and recently bought our first rental property, so we now have two property loans. Which lenders are best at looking after mortgage customers in our situation, and why?
Which New Zealand lenders look after homeowners with a rental property?
Now that you own your home and have bought your first rental property, I'd assess lenders a little differently than I would for someone taking out their first home loan.
The key is to find a lender that looks after you as a long-term customer, not just one that offers a competitive interest rate when you sign up.
With two property loans, the things that matter most are:
- Competitive interest rates: Does the lender offer good rates when you refix, or only to attract new customers?
- Customer retention: Will it negotiate to keep your business when you have a better offer from another bank?
- Flexibility across two properties: Can you structure your home and rental loans to suit your circumstances, including different fixed-rate terms and repayment strategies?
- Investor-friendly lending: Does it understand rental income, investment property lending and the way your overall debt affects future borrowing?
- Service and communication: Can you get helpful answers from a knowledgeable person when you need to change your lending arrangements?
- Useful loan features: Does it offer offset accounts, revolving credit or other facilities that can help you manage cash flow and interest costs?
In your situation, I'd compare the major New Zealand banks alongside a mortgage adviser who can assess lenders beyond your existing bank. I'd also look at how each lender treats existing customers at refixing time, rather than relying solely on advertised rates.
My shortlist: New Zealand mortgage lenders worth comparing
Based on the latest 2026 Canstar home-loan awards, customer satisfaction results and mortgage features, I'd start by comparing BNZ, Kiwibank, ASB, ANZ and Westpac. I'd also consider The Co-operative Bank and TSB if customer service is a major priority. These are not necessarily the cheapest lenders for your particular circumstances, but each is worth considering for a different reason. 【turn0search1】【turn0search3】
1. BNZ — strong all-round option
Why I'd put it on your shortlist: BNZ won Canstar's 2026 Bank of the Year award for home loans and its 2026 Most Satisfied Customers home-loan award. Its results reflect both mortgage-product research and feedback from customers.
Canstar particularly highlighted:
- Strong performance across owner-occupier and investment lending.
- Competitive value for investment fixed-rate mortgages.
- Extra repayment options.
- TotalMoney, an offset mortgage that can link up to 50 accounts to reduce interest charged on eligible borrowing. 【turn0search1】
Why this matters to you: You now have two properties and may want to manage the loans together while maintaining separate repayment strategies. BNZ is worth investigating if you value flexibility alongside customer service.
What I'd ask BNZ: Can you offer competitive retention rates on both loans, and could TotalMoney help reduce interest on the home loan without compromising your rental property's cash flow?
Website: BNZ home loans
2. Kiwibank — worth comparing for customer service and value
Kiwibank is worth including in your comparison of New Zealand's established mortgage providers.
I'd investigate:
- Its interest rates for existing customers who are refixing.
- Whether it can offer competitive pricing across both your home and rental loans.
- Its flexibility around additional repayments and loan structure.
- How easily you can reach someone who can help with more complex lending questions.
Kiwibank was among the five providers assessed in Canstar's 2026 home-loan customer satisfaction awards. However, the published award results don't establish that Kiwibank will offer you a better deal than your existing bank. 【turn0search1】
Why it matters: You want a lender that will continue to compete for your business as your financial circumstances evolve, rather than simply offering an attractive introductory deal.
Website: Kiwibank home loans
3. ASB — worth considering for flexible loan management
ASB is another major lender I'd ask for a competing proposal.
One feature to investigate is its Orbit revolving-credit home loan. This allows you to repay and redraw funds within an approved credit limit, potentially helping you manage fluctuating cash flow. ASB confirms that this is a revolving-credit arrangement rather than a traditional offset account. 【turn0search9】
That distinction matters because different loan structures have different costs and conditions.
Why it might suit you:
- You want some flexibility in managing your household cash flow.
- You have surplus cash at certain times of the year.
- You want to compare the benefits of revolving credit against fixed-rate lending.
What I'd ask ASB: Could a revolving-credit facility be useful for our circumstances, and what would the interest-rate premium and fees be compared with fixing the same amount?
I'd avoid assuming that a flexible loan is automatically cheaper. Its value depends on how much money you can keep against the balance and for how long.
Website: ASB home loans
4. ANZ — worth benchmarking against the other major banks
ANZ belongs on your comparison list because it is one of New Zealand's major mortgage providers and was included in Canstar's 2026 home-loan customer satisfaction research. 【turn0search1】
I'd focus on:
- The rate offered when you refix, rather than just the advertised rate.
- Any cash contribution available if you refinance.
- The lender's treatment of your existing home loan when assessing your rental property borrowing.
- Whether you can maintain a sensible structure across both properties without unnecessary restrictions.
Why it matters: If ANZ offers a substantially better overall deal, it may be worth considering even if your existing bank has been good to you.
Ask for a written proposal covering both loans so that you can compare the total cost rather than one attractive rate in isolation.
Website: ANZ home loans
5. Westpac — another important comparison point
Westpac is worth including when comparing mortgage pricing and loan flexibility.
I'd ask it to assess your combined position as homeowners with an investment property, paying particular attention to:
- Rates available to existing customers.
- Fixed and floating loan options.
- Repayment flexibility.
- The way it would assess your rental income and existing mortgage commitments if you bought another property in the future.
Why it matters: Your first rental property may not be your last. A lender that understands your longer-term plans could be more useful than one that focuses only on the immediate transaction.
Website: Westpac home loans
What about lenders that are particularly good at customer service?
It's worth separating two questions: Which lender has satisfied mortgage customers? and Which lender will look after us particularly well as existing customers with two property loans?
They are related, but they aren't the same.
Canstar's 2026 mortgage customer satisfaction award went to BNZ. Its survey considered customer service, communication, loan flexibility, interest rates and value for money. The survey covered five lenders: BNZ, Kiwibank, ASB, ANZ and Westpac. 【turn0search1】
For broader banking satisfaction, the picture is different.
| Lender | Relevant recognition | Why I'd consider it |
|---|---|---|
| BNZ | Canstar's 2026 home-loan satisfaction winner | Strong evidence of mortgage customer satisfaction, plus investment-loan features. |
| Kiwibank | Included in Canstar's 2026 home-loan satisfaction research | Worth benchmarking for service, rates and flexibility. |
| ASB | Included in Canstar's 2026 home-loan satisfaction research | Worth investigating if flexible cash-flow management matters. |
| ANZ | Included in Canstar's 2026 home-loan satisfaction research | A useful major-bank comparison for pricing and loan structure. |
| Westpac | Included in Canstar's 2026 home-loan satisfaction research | Another major-bank option for comparing rates and lending flexibility. |
| The Co-operative Bank | Canstar's 2025 Most Satisfied Customers banking award winner | Worth considering if customer experience is a particularly high priority. |
| TSB | Recognised in Canstar's 2026 small-business banking satisfaction results | Worth investigating for service, although this award is not specifically about mortgages. |
Sources: Canstar home-loan awards and Canstar personal banking awards. 【turn0search1】【turn0search3】
One important qualification: The Co-operative Bank's award relates to general banking satisfaction in 2025, while TSB's cited recognition concerns small-business banking in 2026. Neither establishes that it will provide better mortgage service for your particular situation.
I'd treat these awards as a starting point, not a substitute for comparing actual offers.
What matters most when you have two property loans?
In my view, this is where your decision becomes more interesting.
1. How the lender treats existing customers
Banks frequently advertise attractive rates and incentives to attract new borrowers. Existing customers shouldn't assume they are receiving the same deal.
Canstar specifically advises borrowers to compare offers from competing lenders and negotiate with their current bank when refixing. 【turn0search6】
When you contact your bank, ask:
- What is your best available rate for each of our loans?
- Is that the same rate you would offer a new customer with a similar lending profile?
- Are there any retention discounts available?
- If we move both loans elsewhere, what cash contribution would you offer?
- Are there any fees or conditions that could offset the apparent savings?
My advice: Get competing quotes before you refix. You may be able to negotiate a better deal without the inconvenience of switching.
2. Whether the lender can structure your loans appropriately
You don't necessarily need the same structure for both properties.
For example, you might prefer:
- A fixed-rate loan for most of your home mortgage to provide repayment certainty.
- Different fixed-rate terms across portions of the debt to avoid having everything mature at once.
- A separate arrangement for your rental property, depending on your cash flow and investment strategy.
- An offset or revolving-credit facility if you have surplus cash that could reduce interest costs.
These are options to discuss with a lender or mortgage adviser, not a recommendation that you should adopt any particular structure.
Also ask whether the loans would be secured independently against each property or cross-secured. Cross-securing can restrict your options when selling a property or refinancing one loan, so it's important to understand the implications before agreeing.
3. How the lender assesses rental income
Rental income doesn't necessarily count dollar-for-dollar when a bank assesses your ability to service your debt.
Lenders may account for rental-property expenses and use only a portion of the expected rental income in their servicing calculations. Their assessment methods and lending policies can differ.
Ask each lender how it would assess your current position and whether the structure would leave you with options if you wanted to purchase another rental property.
4. Whether the lender helps you plan ahead
Your first rental property changes your financial position. Over time, you might want to:
- Pay down your home loan faster.
- Build up a cash reserve for maintenance and periods without tenants.
- Refinance one property without disrupting the other.
- Buy another investment property.
- Review your lending structure as interest rates and your income change.
A good lender should be able to explain your options clearly. A good mortgage adviser should also be able to compare lending policies across several banks rather than simply arranging a loan with one preferred provider.
My recommendation for your next step
I'd start with BNZ, Kiwibank, ASB, ANZ and Westpac, then consider The Co-operative Bank or TSB if their service and lending arrangements look suitable.
BNZ has the clearest recent evidence of strong mortgage customer satisfaction and investment-loan value among the lenders discussed here. However, that doesn't guarantee it will offer you the lowest rate or the best service for your particular circumstances.
I would make the final decision using three things:
- The total interest and fees you'll pay across both loans.
- The flexibility you'll have to manage the two properties and your cash flow.
- The quality of service you'll receive when you need to refix, refinance or change your lending arrangements.
Three questions that would help me narrow this down for you
1. Which bank are your two property loans currently with?
2. What matters most to you?
- A. The lowest possible interest rates.
- B. Excellent customer service and being treated well as existing customers.
- C. Flexibility to manage both properties and potentially buy another.
- D. A combination of all three.
3. Are you planning to buy another rental property in the next few years, or are you mainly focused on managing your two properties well?
With those answers, I can narrow the comparison to the lenders most relevant to your situation, rather than giving you a generic list of New Zealand banks.
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Captured 11 October 2026