If you ask ten people how much deposit you need to buy a house in New Zealand, you will probably get ten different answers. “Ten percent.” “Twenty percent.” “As much as you can possibly save.” Or somewhere in between.
The truth is, the “right” deposit is not a single number. It depends on your situation, your goals, and how flexible your options are. Understanding that nuance can be the difference between waiting years longer than you need to or stepping into a home with confidence.
Most people have heard the rule of thumb that you need a 20 percent deposit when purchasing a home. For many buyers that is still the gold standard. A 20 percent deposit usually gives you access to lower interest rates, fewer restrictions, and more lender choice.
But that does not mean it is the only path.
For example, first home buyers purchasing a new build can often secure lending with just a 10 percent deposit and – importantly – often without the rate loading that typically applies to low-equity loans on existing properties, meaning they access standard interest rates from day one.
But even if you aren’t a first home buyer, banks can and do lend with smaller deposits: often around 10 percent and sometimes even less in specific circumstances. These loans are known as low-equity loans, and they tend to come with higher interest rates or stricter criteria. The key point is that a smaller deposit does not automatically mean you cannot buy. It just means the strategy matters more.
Emma is a 32-year-old professional earning a strong salary in Auckland. She has been renting for years and has saved diligently, but rising house prices made the 20 percent target feel constantly out of reach.
When she came to Threefold, Emma had a 12 percent deposit. She assumed the answer would be “keep saving”. Instead, we looked at the full picture. Stable income, low personal debt, and a clear plan to continue building savings after purchase.
As a first home buyer looking to purchase a new build, Emma was able to access standard rates from the bank and buy a new townhouse within months, not years. The key was understanding that her deposit was only one part of the decision, not the whole story.
If you are a first home buyer, your deposit options may be broader than you think. Many lenders have specific allowances for first home buyers (especially those looking at new builds), recognising that strong income and future earning potential can balance a lower starting deposit.
KiwiSaver withdrawals and family support can all play a role here. What matters most is how these pieces fit together. A smaller deposit paired with a clear financial plan will help you put your best foot forward when it comes to securing lending.
Dave and Julie were expecting their first child and wanted stability before the baby arrived. They currently owned a small one-bedroom unit, which they built up around $150,000 worth of equity in. However, as they looked to upgrade their home they estimated they would need approximately $850,000 dollars to fund their new purchase, but they were nervous about committing to this level of debt with less than 20 percent.
Together, we mapped out their next five years. Their incomes were likely to grow, childcare costs were temporary, and they planned to stay in the home long term.
Rather than waiting and risking further price increases, they chose to sell and upgrade their home with their existing deposit, accepting that a slight loading from their bank on their interest rate was manageable. Two years later, after steady repayments and modest property growth, they refinanced onto a more competitive rate. For them, timing mattered as much as the deposit itself.
While deposit size is important, lenders also look closely at your loan-to-value-ratio (LVR) and how comfortably you can service the loan. Your income, spending habits, existing debts, and job stability all influence how much flexibility a bank has.
This is why two people with the same deposit can receive very different outcomes. One might be approved easily, while the other is asked to make changes first. A good adviser helps you shape your position before you apply, not just submit the numbers and hope for the best.
For many buyers, 20 percent is ideal as this will potentially give you access to lower interest rates, along with providing a cushion in relation to your equity if house prices fall. For others, 10 to 15 percent is enough with the right structure and expectations.
What size deposit is right for you is likely to depend on your income, your timeline, your tolerance for risk, and what you want your life to look like after you buy – along with external factors such as market conditions and lender policy.
At Threefold, we believe buying a home should feel considered, not rushed or intimidating. Understanding your deposit options is the first step towards making a decision that supports your long-term financial wellbeing, not just getting you through the door.
If you are wondering whether your deposit is enough, the most valuable move is not guessing. It is getting clear, personalised advice before you make your next step.
To book a chat with a Threefold mortgage adviser, fill in the form here.
The most commonly cited benchmark is 20 percent of the purchase price. At this level, your LVR (Loan-to-Value Ratio) is 80 percent or below, which generally gives you access to the most competitive interest rates and the widest choice of lenders. However, 20 percent is not a hard minimum. Many New Zealand banks will lend to borrowers with deposits of 10 percent or more, subject to their lending criteria and the Reserve Bank’s LVR restrictions. In some circumstances, for example, for first home buyers, certain new build purchases or under specific bank policies, deposits of 10 percent or below may also be considered. The right deposit for you depends on your income, financial position, and goals. For many buyers, the answer is not “save until you hit 20 percent” it’s understanding what your current deposit can do for you right now.
Yes, in many cases. New Zealand banks can lend to borrowers with deposits as low as 10 percent, and occasionally less under specific circumstances. These are known as low-equity loans and typically come with a low-equity premium, which is a slightly higher interest rate to offset the lender’s additional risk. Whether a 10 percent deposit works for you depends on your income, credit profile, and the specific lender, which is why personalised advice matters.
It’s also worth noting that first home buyers purchasing a new build often get a better deal still as many lenders will approve a 10 percent deposit without applying rate loading, meaning you access standard interest rates rather than paying a premium for the lower deposit.
LVR stands for Loan-to-Value Ratio. It expresses your mortgage as a percentage of the property’s value. For example, if you are buying a $900,000 home with a $180,000 deposit (20 percent), your LVR is 80 percent. The lower your LVR, the less risk a lender takes on and typically, the better the interest rate you can access. The Reserve Bank sets limits on how many high-LVR loans banks can write at any time, so borrowers with smaller deposits may find fewer options available to them. A mortgage adviser can help you understand where you sit and which lenders are most likely to work for your situation.
Yes. If you are a first home buyer and have been a member of KiwiSaver for at least three years, you may be eligible to withdraw most of your KiwiSaver balance to put towards your deposit. You must leave a minimum of $1,000 in your account. The withdrawal can be combined with personal savings or a gifted deposit from family, giving you more flexibility in reaching your target. Because KiwiSaver rules and eligibility criteria can change, it’s worth confirming your position with your adviser before making any assumptions about how much you can access.
A strong mortgage application tells a clear, consistent financial story. Lenders want to see that you can comfortably afford the loan today, and that your position is stable enough to keep affording it over time. In practice, that means a few things working together: a genuine, well-documented deposit; stable employment or business income with at least two years of history; clean or well-managed credit; low existing debt relative to your income; and bank statements that reflect considered spending rather than last-minute saving. Presentation matters too. Applications that arrive well-prepared, with supporting documents organised and any complexities explained upfront, tend to move faster and attract more confidence from lenders. A good mortgage adviser doesn’t just submit your numbers; they shape the narrative around your application so that your strengths are front and centre.
Going directly to a bank means seeing one set of options. A mortgage adviser works across multiple lenders, which means they can match your specific situation to the most suitable product, not just the most convenient one. But the difference goes beyond access. A good adviser shapes your application before it reaches a lender, identifies and resolves potential issues in advance, and manages the process on your behalf so you are not left navigating paperwork and follow-ups on your own. For busy professionals, that time saving alone is often worth it. Beyond the immediate transaction, an adviser who understands your full financial picture can also help you structure your loan in a way that supports your longer-term goals, whether that’s paying down debt faster, protecting cash flow, or positioning yourself for a future purchase. Most mortgage advisers in New Zealand are paid by the lender, not by you, so the advice typically comes at no direct cost.
The content of this article should not be taken as financial advice, or a recommendation of any financial product. These insights are based on current economic commentary, market pricing for interest rates, and our personal opinion. Threefold is not liable or responsible for any information, omissions, or errors present.