How Much Deposit Do You Really Need?

One of the most common questions first-home buyers ask is how much they need to save before they can purchase a property. In New Zealand, the answer is not always as simple as a single number. Lenders look at your deposit in the context of LVR restrictions, lending risk, and your overall financial picture. At Chaperone, we want to give you a clear-eyed view of what to expect so you can set a realistic savings goal from the start.

The Minimum Deposit Requirement

For most owner-occupiers in New Zealand, the minimum deposit a lender will typically accept is 10% of the purchase price. This means for a $700,000 home, you would need at least $70,000 in deposit funds. However, some lenders and government schemes allow eligible first-home buyers to purchase with as little as 5% under specific conditions, such as through the First Home Loan scheme. While it is possible to get a mortgage with a smaller deposit, there are trade-offs to consider carefully.

Why 20% Is Often the Target

Many borrowers aim for a 20% deposit because it represents the threshold above which LVR restrictions no longer apply in most cases. Borrowing more than 80% of a property's value (a high LVR loan) typically attracts a low-equity premium, which is an additional interest rate margin that lenders charge to offset their risk. Over the life of a mortgage, even a small rate premium can add up to thousands of dollars. A larger deposit also signals financial discipline to lenders, which can improve the terms you are offered.

What Counts as a Deposit?

Your deposit does not have to come from a single source. Most lenders will accept a combination of your own savings, a KiwiSaver withdrawal, the First Home Grant, and in some cases a gifted deposit from a family member. Lenders do scrutinise gifted deposits carefully, often requiring a statutory declaration that the gift does not need to be repaid and that the giftor will not take any interest in the property. It is worth discussing your deposit composition with a mortgage adviser early on to ensure everything will be accepted.

Deposit vs Total Upfront Costs

It is important to remember that your deposit is not the only upfront cost involved in buying a home. Legal fees for your solicitor, a building inspection, a LIM report, and any moving costs all need to be factored in. Collectively these can amount to several thousand dollars. Many buyers focus so hard on reaching their deposit target that they forget to keep some cash in reserve for these costs. A general rule of thumb is to budget an additional $5,000 to $10,000 on top of your deposit for these associated expenses. Building this buffer into your savings plan from the start will help you avoid being caught short at a critical moment.

How Deposit Size Affects Your Loan

The size of your deposit directly affects the loan-to-value ratio (LVR) of your mortgage, which in turn affects the interest rates and terms you are offered. Borrowers with a higher equity position are seen as lower risk by lenders and often receive more competitive rates. This relationship means that saving a little longer to reach a higher deposit threshold can sometimes result in lower total repayment costs over the life of the loan. A mortgage adviser can help you model different scenarios so you can weigh the trade-offs for your specific circumstances.

Working Towards Your Goal

Building a deposit takes discipline, and having a clear target makes the process more tangible. Setting up automatic transfers to a dedicated savings account, understanding what KiwiSaver and the First Home Grant can contribute, and keeping a close eye on property price caps in your region will all help. At Chaperone, we can connect you with advisers who will look at your full financial picture and help you map out a realistic path to your deposit goal.