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Saving for a house deposit while paying rent and managing the rising cost of living can feel like an uphill battle.
You have likely heard the traditional rule of thumb a hundred times: "You need a 20% deposit to buy a home." When New Zealand property values are sitting high, trying to scrape together a full 20% in cash can seem completely out of reach.
The reality is that a 20% deposit is the ideal scenario, but it is not a strict requirement. A significant portion of first-home buyers successfully get their mortgages approved with much smaller deposits.
Here is a look at the five primary pathways to homeownership in New Zealand, how they work, and how you might be closer to the property ladder than you think.
The 5 Mortgage Pathways at a Glance
1. The Kāinga Ora First Home Loan (5% Deposit)
The most common pathway for buyers with a lower deposit is the Kāinga Ora First Home Loan Scheme.
Under this scheme, eligible buyers can secure a mortgage with just a 5% deposit. Because Kāinga Ora effectively underwrites a portion of the risk for the bank, participating lenders generally will not charge you their standard "low equity" penalty interest rates.
- The Eligibility Rules (Income Caps): You must fit specific criteria to qualify. Your gross (before-tax) income over the last 12 months must be under $95,000 for a single buyer without dependents, or under $150,000 for a couple (or a single buyer with dependents).
- Other conditions apply to these loans so do check your eligibility with an adviser.
- The Fine Print: While you avoid higher interest rates, Kāinga Ora requires a 1.2% Lender's Mortgage Insurance (LMI) premium. This fee is usually added to your total loan balance over the life of the mortgage rather than paid upfront in cash.
I'd like to note that the Kāinga Ora First Home Loan is a relatively complex product to explain in a couple of paragraphs but can be a powerful tool for first home buyer. Before discounting this as an option, make sure you've checked your eligibility with an adviser.
Read more about the Kāinga Ora First Home Loan Scheme here.
2. Standard Bank Low-Deposit Loans (5% to 19.99% Deposit)
If you earn over the Kāinga Ora income caps, you still have options. Many mainstream banks offer standard home loans for buyers with deposits sitting anywhere between 5% and 19.99%.
The Reserve Bank of New Zealand (RBNZ) places strict "speed limits" on how much low-deposit lending banks are allowed to do, so these approvals are closely managed and can be highly competitive.
Because the bank is taking on more risk by lending you up to 95% of the property's value without government backing, they will apply a Low Equity Margin (LEM).
How the Low Equity Margin (LEM) works
An LEM is not a lump-sum fee. It is an ongoing percentage premium that the bank adds on top of their advertised mortgage interest rates. The smaller your deposit, the higher the margin the bank will apply.
While every bank calculates this slightly differently, as a general market estimate, you can expect an LEM to look something like this:
- 15% to 19.99% deposit: Adds approx. 0.25% to 0.35% to your interest rate.
- 10% to 14.99% deposit: Adds approx. 0.60% to 0.75% to your interest rate.
- 5% to 9.99% deposit: Adds approx. 1.20% to 1.50% to your interest rate.
While an LEM makes your mortgage slightly more expensive upfront, it acts as a brilliant temporary stepping stone. As you pay down the loan and your property hopefully goes up in value, you will eventually build up 20% equity.
As you reach key milestones (such as 10%, 15%, or 20% equity), your LEM can be reviewed and reduced, often aligning neatly with your scheduled refix dates. Once you finally cross that 20% threshold, we go straight back to the bank and ask them to remove the extra margins entirely!
3. Special New Build Exemptions (10% Deposit)
If you are looking at a brand-new townhouse or buying a house off the plans (like a turnkey property), you can tap into some incredibly powerful lending exemptions.
The Reserve Bank generally exempts brand-new builds from their strict low-deposit "speed limits" to help encourage new housing supply. Because new homes are energy-efficient, fully compliant with modern building codes, and less likely to have hidden maintenance issues, banks view them very favourably.
If you can pull together a 10% deposit, certain major banks offer specific "New Build" mortgage packages.
These special packages can give you access to the exact same heavily discounted, advertised interest rates and generous cashback offers usually reserved for buyers with a massive 20% deposit—often for a limited promotional period, such as the first two or three years of your loan.
4. The Bank of Mum and Dad (Guarantors, Gifting, and Deeds of Debt)
If you have a strong income to comfortably afford weekly repayments but are struggling to save the cash deposit, family assistance is an incredibly common solution. There are three main ways this is structured:
- Gifting: This is the most straightforward option. Parents or family members provide a lump sum of cash, accompanied by a signed bank declaration confirming it is a genuine, non-repayable gift. This cash goes directly toward your deposit to get you over the line.
- Guarantors: If your family doesn't have spare cash lying around, parents can often use the equity in their own property to "guarantee" a portion of your mortgage. For example, if you have a 5% cash deposit, your parents can guarantee the remaining 15% against their home. This brings your total "equity" up to 20%, allowing you to bypass Low Equity Margins and unlock the sharpest advertised interest rates on the market. We structure this carefully so your parents' liability is strictly limited to that specific 15% slice, with the goal of releasing them from the guarantee as soon as you pay down your loan.
- Deeds of Debt (Family Loans): What if your parents want to help, but don't want to give the money away permanently? A Deed of Debt (or Acknowledgement of Debt) is a formal legal loan agreement between you and your family. Families often use this to protect the money under relationship property rules if you and a partner were to separate down the track, or to ensure fair inheritance among siblings.
- How the bank views it: For a bank to count this money toward your deposit, the loan must usually be interest-free with no compulsory regular repayments (typically repayable only upon demand or when the home is eventually sold). If your parents required regular monthly repayments, the bank would treat it as a debt commitment, which would heavily reduce your borrowing power.
- Legal note: Because this is a binding legal contract, your solicitor will need to draft this and both you and your parents will typically need independent legal advice.
Read more about Bank of Mum and Dad options here.
5. The 20% Gold Standard
If you have managed to save a full 20% deposit—whether through KiwiSaver, personal savings, or a combination of both—congratulations! You have hit the gold standard of New Zealand mortgages.
Having 20% equity in the property from day one completely changes how a bank views your application. It generally unlocks the absolute sharpest advertised interest rates on the market, ensures you completely avoid any Low Equity fees, and gives you the widest possible pool of lenders competing for your business.
Deposit Size vs. Repayment Power
While sorting your deposit is a massive win, it is only half of the puzzle. It is vital to remember that a smaller deposit means a larger overall loan.
Borrowing 90% or 95% of a house's value means your weekly or fortnightly repayments to the bank will be markedly higher. The bank's main focus will not just be your deposit size—they will want to thoroughly "stress test" your regular income and your monthly household expenses at an interest rate significantly higher than the current market rate. This ensures you can comfortably afford the mortgage long-term, even if interest rates go up.
Read more about how banks stress test your income here.
Let's figure out your true starting line
The biggest mistake you can make is assuming you aren't ready based on a generic article online. Because every bank calculates your living expenses, KiwiSaver eligibility, and borrowing power differently, getting a personalised assessment is the only way to know where you actually stand.
