# HL-Q161: Choosing a loan

What's the best bank for a first investment property loan when you already own your home?

Borrower: Homeowner buying a first rental property

[Study](https://nzbrands.ai/research/banking/home-lending/) · Collected 11 October 2026

## chatgpt

Answer ID: c28edefe-4c04-47b8-aa97-71f56ae1aaf6

If you already own your home in New Zealand and want to buy your first investment property, I’d start by comparing ANZ, ASB, BNZ and Westpac rather than assuming your existing bank is the best option. The right lender will depend on how much equity you have in your home, your income, the rental yield of the new property, and how each bank assesses your ability to service the debt.

The biggest opportunity is that you may be able to use equity in your existing home to help fund the deposit, potentially without having to save the entire deposit in cash. The catch is that your home would then be exposed to more borrowing risk.

## Which bank would I approach first?

1. ANZ New Zealand — best starting point for using home equity

ANZ clearly explains how existing homeowners may use equity to fund an investment-property deposit. It’s a sensible first conversation if you already have a mortgage with ANZ, although another lender may offer a better overall deal. [Borrowing for an investment property](https://www.anz.co.nz/personal/home-loans-mortgages/investment-property/borrowing-investment-property/)

[ANZ investment property lending](https://www.anz.co.nz/personal/home-loans-mortgages/investment-property/borrowing-investment-property/)

2. ASB — worth comparing on interest rates and structure

Ask for a combined proposal covering your current mortgage and the additional investment borrowing. Compare the actual rate offered to you, fees, cashback and flexibility, rather than just the advertised rate.

[ASB home loan rates and fees](https://www.asb.co.nz/home-loans-mortgages/interest-rates-fees.html)

3. BNZ — worth testing your borrowing capacity

BNZ explains how both equity and debt-to-income restrictions affect lending, including topping up an existing mortgage. This is particularly relevant if you have a sizeable existing mortgage. [Understanding debt to income ratios](https://www.bnz.co.nz/support/home-loans/buying-a-home/understanding-debt-to-income-ratios)[Understanding different loan to value ratios](https://www.bnz.co.nz/support/home-loans/buying-a-home/loan-to-value-ratios)

[BNZ investment property lending](https://www.bnz.co.nz/personal-banking/home-loans/investing-in-property)

4. Westpac New Zealand — another useful competing offer

Include Westpac when requesting competing mortgage proposals, especially if you want to compare fixed-rate options, loan flexibility and the cost of moving your existing mortgage.

[Westpac home loan rates](https://www.westpac.co.nz/home-loans-mortgages/interest-rates/)

These are my suggested lenders to approach, not a verified ranking of today's best investor mortgage rates. Your personalised approval and pricing could change the order considerably.

## The key question: how much equity can you use?

For example, suppose your home is worth NZ$1,000,000 and you owe NZ$400,000 on its mortgage.

| Calculation | Amount |
| --- | --- |
| Current home value | $1,000,000 |
| Existing mortgage | $400,000 |
| Total equity | $600,000 |
| Potential equity above an 80% home LVR | $400,000 |

That last figure is an illustrative calculation, not a promise that the bank will lend you $400,000. The bank must assess affordability and the security structure, and investor lending restrictions apply. Banks generally require around 30% equity in an existing residential investment property under standard LVR rules, although exemptions and permitted high-LVR lending can affect individual cases. [Reserve Bank to ease LVR restrictions - Reserve Bank of New Zealand](https://www.rbnz.govt.nz/news-and-events/news/2025/10/reserve-bank-to-ease-lvr-restrictions)[Borrowing for an investment property](https://www.anz.co.nz/personal/home-loans-mortgages/investment-property/borrowing-investment-property/)

You also need to check debt-to-income limits and the bank's own servicing assessment. Having plenty of equity doesn't automatically mean you can borrow enough.

## My recommendation

I would get a whole-of-market mortgage adviser to compare lenders, particularly if your home is already mortgaged. The Financial Markets Authority explains that advisers can compare lenders, assess affordability and explain the total cost and structure of each option. [Mortgage advice](https://www.fma.govt.nz/consumer/getting-advice/mortgage-advice/)

Ask them to compare:

- The lowest overall interest rate and fees.
- How much equity you can release without refinancing your entire home loan.
- Whether the home loan and investment loan can be kept as separate facilities.
- The required deposit and how rental income is assessed.
- Fixed versus floating portions, repayment flexibility and any cashback clawback clauses.

## Let’s narrow it down to your situation

I can give you a much more useful recommendation if you share these four details.

With those numbers, I can estimate your potentially usable equity and explain which lenders I would approach first.

---

## gemini

Answer ID: 668bd60f-8fae-474f-9ea3-7f8ecede9b72

When you already own your home and want to buy your first investment property, choosing the "best" bank depends heavily on how you plan to leverage your existing equity and whether you are buying an **established property** or a **new build**. 

Because major New Zealand retail banks (ANZ, ASB, BNZ, Westpac, and Kiwibank) frequently adjust their interest rates, cash-back offers, and serviceability test rates, no single bank is universally the cheapest or best for everyone. Instead, the right choice depends on your specific strategy and equity position.

---

### How Major NZ Banks Differ for Investment Loans

| Bank / Lender Category | Key Advantages for Investors | Considerations & Constraints |
| :--- | :--- | :--- |
| **Your Current Home Bank (e.g., ANZ, ASB, BNZ)** | • **Streamlined structuring:** Easiest to use your home's "usable equity" via a second-ranking mortgage or by splitting your existing loan.<br>• **Fast-tracked approval:** They already hold your asset and income records. | • May not always offer the sharpest competitive special rate or cash contribution for investment lending without negotiation. |
| **Aggressive Market Challengers (e.g., BNZ, Kiwibank)** | • Frequently run competitive 1-year fixed investor rates or low-equity margin incentives.<br>• More flexible policies on new-build LVR exceptions. | • Switching all day-to-day banking or moving the first mortgage over can involve discharge fees and legal costs if not done carefully. |
| **Non-Bank Lenders (e.g., Resimac, Bluestone)** | • More flexible Debt-to-Income (DTI) or serviceability calculations if your personal income is tight relative to your rental income. | • Higher interest rates and establishment fees compared to major main-trunk registered banks. |

---

### Key Factors to Evaluate Beyond the Headline Rate

1. **Leveraging Usable Equity:** 
   To buy an investment property, you typically need a 30% deposit for an existing home (or 20% if it is a qualifying new build under Reserve Bank LVR speed limits). Most banks will let you draw against your owner-occupier home up to 80% of its current value (leaving 20% equity untouched). Staying with your current bank makes this equity release straightforward because they hold the primary title.
2. **Cross-Collateralisation vs. Segregated Lending:**
   A critical strategic decision is how your loans are structured. **Cross-collateralisation** ties your family home and investment property together under one security umbrella. While convenient, most independent financial advisers recommend **segregating** the securities so that your personal home is legally insulated from the commercial risk of your rental property. 
3. **Serviceability & DTI Testing:**
   Banks calculate your borrowing capacity differently when assessing rental income. Most major New Zealand banks factor in only 65% to 75% of the expected rental income to account for vacancies, insurance, and maintenance, while testing your total debt against strict Debt-to-Income (DTI) caps and high interest test rates (typically around 6.85% to 7.10%). If one bank hits a ceiling on your borrowing capacity, another major bank or a non-bank lender may view your income streams more favorably.
4. **Cash Contributions & Refinance Incentives:**
   If you bring a large amount of equity to the table, major banks will often compete for your combined business by offering cash-back contributions to help cover legal and valuation fees. 

---

### Recommended Next Steps

Rather than walking into a single bank blindly, consider these options to secure the most favorable terms:

* **Talk to a Mortgage Adviser (Broker):** In New Zealand, brokers are free for borrowers (the bank pays the commission) and they have direct visibility across all major bank lending policies, current cash contributions, and DTI test calculators simultaneously.
* **Request a Formal Property Valuation:** Before applying, check what your current home is worth via QV or a registered valuation so you know precisely how much usable equity you have ready to deploy.

---

## ai-mode

Answer ID: 724558b0-e346-4276-835a-f83740d8756d

There is no single "best" bank for a first investment property loan in New Zealand, because the right choice depends heavily on how you structure your existing home equity and which lender offers the most favorable servicing test rates and cash contributions for your specific financial profile.

When leveraging equity from your own home to buy an investment property, major New Zealand lenders (such as ANZ, ASB, BNZ, Kiwibank, and Westpac) evaluate your application using distinct criteria:

 * * **Equity and Loan-to-Value Ratios (LVR):** Existing home equity allows you to secure the investment loan, but Reserve Bank LVR rules and individual bank policies dictate how much you can borrow. Existing properties generally require a 30% deposit/equity equivalent, though new builds can sometimes offer more leverage.

 * **Servicing Test Rates:** Banks apply different serviceability test rates (ranging roughly between 6.85% and 7.10% p.a.) when assessing whether you can afford both your owner-occupier mortgage and the new investment loan. They also differ in how aggressively they discount expected rental income. [Simpler Mortgages]

 * **Cash Back and Rebates:** Major banks frequently offer cash contributions (cash back) on new lending over certain thresholds, which can offset setup costs, though these vary widely by negotiation and current bank campaigns.

 * **Structuring Flexibility:** Using a revolving credit facility, a
sub-account, or splitting loans across your primary residence and the new security is handled with varying degrees of flexibility and ease depending on the bank's internal systems.

 *

To compare current offerings and find the most competitive edge, you can review independent analyses on MoneyHub NZ's Investment Property Loans Guide or look at broader lender comparisons on [Canstar New Zealand](https://www.canstar.co.nz/home-loans/).

If you can share your approximate **available home equity** , **household income** , and whether you are looking at an **existing property or a new build** , I can help you understand **how the math and LVR rules apply to your scenario**.