Can You Buy an Investment Property with a 10% Deposit in NZ? (Yes, Here’s How)

A quick heads-up: The information in this article is designed as a general educational guide only and does not constitute personalised financial, tax, or legal advice. Because everyone's situation is unique (and bank policies change frequently), we recommend speaking with a licensed Financial Adviser to see how this applies to your specific circumstances. For full transparency on our terms of service, how we are remunerated by lenders, and any specific situations where a fee may apply, please read How We Get Paid.

If you have been thinking about buying an investment property to build your long-term wealth, a quick Google search might have left you feeling completely deflated.

When you look at the standard Reserve Bank of New Zealand (RBNZ) rules for property investors, the headline is pretty intimidating. To buy an existing house as a rental, banks generally require a hefty 30% to 35% deposit. For most hardworking Kiwis, having hundreds of thousands of dollars tied up just to get a foot in the door feels like an impossible hurdle.

However, there is a widely used, completely legitimate mechanism in New Zealand property investing that many first-time investors miss: buying a brand-new build can allow you to get started with as little as a 10% deposit.

Here is how the new-build exemption works, where that deposit actually comes from, and the crucial bank checks you need to know about.

Why Buy an Investment Property (And Why a New Build)?

For most everyday Kiwis, property investment is about long-term wealth creation. It is about acquiring an asset that compounds in value over decades (capital growth) while eventually providing a reliable passive income stream to fund a comfortable retirement.

So, why are so many investors specifically targeting brand-new builds?

• Lower Maintenance & Running Costs: You avoid unexpected weekend calls about a rusted 1970s roof, outdated wiring, or a failed hot water cylinder. Everything is brand new and covered by building warranties.
• Immediate Healthy Homes Compliance: Brand-new builds are fully insulated, double-glazed, and compliant with modern Healthy Homes standards from day one—making them exceptionally appealing to quality, long-term tenants.
• The Reserve Bank Exemption: To encourage the supply of fresh housing stock, the Reserve Bank explicitly exempts brand-new homes from standard investor LVR (Loan-to-Value Ratio) restrictions. Because of this exemption, multiple mainstream banks currently offer lending on turnkey new builds with just a 10% deposit (though exact deposit requirements can vary between 10% and 20% depending on the lender and market conditions).

The Less Well-Known New Build Bank Discounts

Bypassing the standard 30% deposit hurdle is only half the benefit. Purchasing a brand-new home can also unlock some of the sharpest mortgage packages in the country.

Because new builds are energy-efficient and add to the country's housing supply, several major New Zealand lenders offer dedicated "Green" or "New Build" mortgage products.

While policy settings fluctuate, these packages frequently feature heavily discounted floating or fixed rates for the first two to three years. Over those critical early years while your tenancy gets established, those interest savings can keep thousands of dollars in your pocket.

Where Does the 10% Actually Come From?

When advisers talk about needing a 10% deposit, how are everyday buyers actually funding it? There are two main paths:

1. Leveraging Your Usable Equity

This is how the vast majority of "mum and dad" investors get started. They don't have $80,000 or $90,000 sitting in a savings account. Instead, they unlock the equity built up in their existing home.

How it works: If you bought your family home a few years ago, you have likely paid down your mortgage while property values have moved over time. Rather than dipping into savings, we can approach a lender to secure the 10% deposit against the usable equity in your existing home. You then borrow the remaining 90% against the new property. You are effectively financing 100% of the purchase across two separate, structured loan facilities without touching your day-to-day cash reserves.

Try our Usable Equity Calculator here.

2. A Cash Deposit (Savings & Investments)

The traditional route involves using liquid funds—cash sitting in savings accounts, matured term deposits, or non-retirement share portfolios.

A Crucial KiwiSaver Reality Check: A common misconception is that you can tap into KiwiSaver for an investment deposit. Under New Zealand law, KiwiSaver first-home withdrawals are strictly reserved for properties you intend to live in as your primary residence. You cannot withdraw KiwiSaver funds to purchase an investment property.

How Servicing Works

Securing a 10% deposit—whether through usable equity or cash savings—is an exciting milestone, but the bank's biggest test is always servicing.

Borrowing 90% on an investment property means the rental income alone will rarely cover the total cost of mortgage repayments, council rates, and insurance at current interest rates. There will usually be a cash shortfall you must top up each month.

Because of this, bank credit teams will apply two strict assessments:

1. The Interest Rate Stress Test: The bank will assess your personal finances using a simulated "test interest rate" (well above current advertised specials). They need to verify that your household income can comfortably cover your living costs, your existing home loan, and any rental shortfall without causing financial strain.
2. Debt-to-Income (DTI) Ratios: The Reserve Bank's macroprudential framework includes formal Debt-to-Income limits. For property investors, total borrowing across all properties is generally benchmarked against a multiple of your gross household income (typically around 7x DTI). While banks have flexibility allowances, your adviser will ensure your total portfolio sits comfortably within regulatory thresholds.

What Actually Makes a Strong Investment Property?

Getting the finance approved is step one; selecting the right property is where your long-term return is decided.

When evaluating new builds, look past the staged furniture and focus on core property fundamentals:

• Yield vs Capital Growth: High-yield properties generate stronger cash flow to help cover the mortgage today, while high-growth locations may have slightly lower initial yields but greater potential for capital appreciation over the next decade.
• Infrastructure & Amenities: Look for developments within easy walking distance of public transport links, quality school zones, and major employment hubs like hospitals or city centres.
• Tenant Appeal & Practicality: Practical layouts, dedicated off-street parking, and low-maintenance outdoor spaces consistently attract reliable, long-term tenants.

Ready to Run Your Numbers?

You don't need hundreds of thousands of dollars sitting in a savings account to start building a property portfolio. If you already own a home and have steady household income, your existing equity could be the key that opens the door.

Because every bank interprets usable equity, new-build exemptions, and rental shortfalls differently, having an independent mortgage adviser assess your position across the market gives you a clear, objective roadmap.

Book a Free Investment Strategy Chat with the Home Loan Factory Team