How Much Deposit Do I Need to Buy a House in New Zealand?
I believe that people who are determined to build a better life—and willing to take small, consistent steps—are the ones who actually become homeowners.
Not people waiting for perfect conditions.
Not people hoping the market will magically align.
People ready to take action even when it feels uncertain.
That's why one of the most common things I hear breaks my heart:
"We don't have a 20% deposit yet, so I suppose we're not ready to buy."
My response is always the same:
You don't necessarily need a 20% deposit to buy your first home in New Zealand.
I come across the 20% deposit myth regularly.
Yes, having 20% is a very strong position. It generally gives you more lender options, makes pre-approval easier to obtain and means you won't normally have a low-equity margin added to your interest rate.
But that doesn't automatically mean waiting until you have 20% is the best financial decision.
I've helped first-home buyers purchase with 5%, 10% and 15% deposits.
The more useful question isn't:
"Do I have a 20% deposit?"
It's:
"Am I in a strong enough financial position to buy with the deposit I have today?"
Those are two very different questions.
And that's exactly what Step 1 of The Home Ready Method™ is designed to answer. Not with guesses—with your real numbers.
What Is The Home Ready Method™?
If you're wondering what I'm referring to, let me explain briefly:
The Home Ready Method™ is my proven 5-step process that takes first-home buyers from "I don't know if I'm ready" to "Here are my keys."
Step 1: Discover Your Position — Get your real numbers (not guesses)
Step 2: Build Your Plan — Create a personalized roadmap
Step 3: Optimize Your Strategy — Maximize every opportunity (KiwiSaver, grants, deposit strategies)
Step 4: Track Your Progress — Stay on track with ongoing support
Step 5: Get Your Keys — Navigate the mortgage process with confidence
Now, let's talk about what you actually need to know about deposits.
Can You Really Buy a House With Less Than 20% Deposit?
Yes.
There are several potential pathways for first-home buyers with less than 20%.
The important thing to understand is that the smaller your deposit, the stronger the rest of your application generally needs to be.
A bank is taking more risk lending 95% of a property's value than it is lending 80%.
So if you're asking the bank to accept more risk on the deposit side, I generally want the rest of your application to give them confidence.
I know this might feel overwhelming. You're trying to figure out if you're ready, if you're making a mistake, if you should wait longer. And you're probably cautious about who to trust with this decision.
I get it.
That's exactly why Step 1 of The Home Ready Method™ exists—to give you clarity in a safe, judgment-free space.
When I'm assessing whether someone is ready to buy with a smaller deposit, I look at things like:
Little or no consumer debt
Good account conduct
A strong monthly surplus
Stable income
Evidence that you can save consistently
And an ability to demonstrate that you can comfortably step up from your current rent to the proposed mortgage repayments
Having a 5% deposit therefore doesn't automatically mean you're ready to buy with 5%.
We need to look at the whole picture.
That's what Step 1 is all about.
What Does Buying With a 5% Deposit Look Like?
For eligible first-home buyers, one important option is the First Home Loan .
A First Home Loan can allow an eligible buyer to purchase with a deposit of just 5%.
Because of the way the scheme works, it can also potentially allow you to obtain a pre-approval before you've found a property.
That is incredibly valuable.
You know roughly what you can spend before you start seriously looking at houses and making offers.
There are eligibility criteria, including income requirements, and you still need to meet the lending criteria of a participating lender.
But if you qualify, it's an option well worth investigating.
Outside the First Home Loan scheme, borrowing with a deposit between 5% and 10% can be considerably more restrictive.
Lender appetite and policies change, but in my experience there may be very limited options, and the lender may only consider the application once you've found a property—a live deal —rather than giving you a pre-approval first.
That's a very different home-buying experience.
What Does a Strong 5% Deposit Application Look Like?
If someone comes to me with a 5% deposit, there are several things I particularly like to see.
And if you're worried that having a 5% deposit means you'll be judged or dismissed, let me be clear: this is a judgment-free space. I've worked with people in all kinds of situations. My job is to help you understand where you stand—not make you feel bad about where you are.
You've demonstrated an ability to save
This is important.
If you're already paying rent and still managing to put additional money aside each month, you're demonstrating something banks want to see:
the ability to step up.
Imagine you're currently paying $700 a week in rent, but your proposed mortgage and homeownership costs will be higher.
If you're paying your rent and consistently saving the difference, that's evidence that you may be able to handle that higher commitment.
You have little consumer debt
Car loans, personal loans, credit cards, store cards and Buy Now Pay Later facilities can all work against you.
With a small deposit, I particularly want the rest of the application to be clean.
You have a strong monthly surplus
Simply scraping through a bank's minimum servicing calculation isn't where I'd ideally want a 5% deposit client to be.
I'd much rather see a healthy buffer.
Your accounts are well managed
No dishonours.
No regularly overdrawn accounts.
No missed loan payments.
Good account conduct gives the bank greater confidence in how you manage your money.
A 5% deposit can work.
But 5% deposit plus high consumer debt, poor account conduct and very little monthly surplus is a completely different proposition from 5% deposit plus strong financial behaviour.
What Changes With a 10% Deposit?
Once you move towards a 10% deposit, more possibilities can start to open up.
More lenders may be prepared to consider the application, particularly where you have a property under contract.
However, you still shouldn't assume you'll have exactly the same options as someone with 20%.
Depending on the lender and application, there may still be:
Low-equity pricing
Tighter servicing requirements
Restrictions around pre-approval
Greater scrutiny of consumer debt
And a need to demonstrate a stronger financial surplus
This is why lender selection becomes important.
It's not simply a case of asking:
"Which bank has the lowest advertised mortgage rate?"
The first question is:
"Which lender is likely to consider my circumstances?"
Only then does it make sense to start comparing the overall lending proposition.
That's what happens in Step 2 of The Home Ready Method™ —we build your personalized plan based on your specific situation.
What Changes When You Reach a 20% Deposit?
Twenty percent remains a very strong position.
Generally, it gives us much more flexibility.
Pre-approvals are more readily available.
You're not normally dealing with low-equity margins.
The bank is taking less risk.
And that can mean greater tolerance elsewhere in the application.
For example, a borrower with a 20% deposit may have more flexibility around existing debt or servicing than an otherwise identical borrower with 10%.
So I'm certainly not suggesting that having 20% doesn't matter.
It does.
What I challenge is the assumption that everyone should wait until they have 20% before even considering buying.
That's where opportunity cost comes into the conversation.
Waiting Isn't a Neutral Decision
I believe clarity beats confusion. And I believe knowing beats hoping.
That's why I don't want you making the biggest financial decision of your life based on assumptions. I want you making it based on your real numbers .
Suppose you have a 10% or 15% deposit today.
You could potentially buy.
But you decide:
"We'll wait until we have 20%. Then we'll get a better deal."
That sounds perfectly sensible.
And sometimes it is.
But before making that decision, I'd want you to consider what you're giving up by waiting.
How long will it realistically take you to reach 20%?
Not theoretically.
Realistically.
If you're trying to accumulate another $40,000 or $50,000, how long will that actually take?
Six months?
Two years?
Four years?
Do you already have a track record of saving well above your rent every month?
If not, what is going to change?
What happens if property prices rise?
This is the problem I call catch-up mode .
Imagine the home you want costs $700,000.
A 20% deposit is $140,000.
But while you're saving, similar properties increase to $750,000.
Now 20% is $150,000.
You saved another $10,000—but your target moved another $10,000 as well.
You're running, but the finish line keeps moving.
I'm not suggesting property prices will always rise. They don't.
I'm saying that relying on prices falling—or even staying exactly where they are—while you save the difference is itself a financial decision.
You're still paying rent while you wait
Rent isn't necessarily "wasted money". You need somewhere to live.
But it's still part of the opportunity-cost calculation.
If reaching 20% will take another two years, how much rent will you pay during those two years?
That needs to be weighed against the additional costs of buying earlier with a smaller deposit.
What happens if interest rates change?
This is another factor people overlook.
You could spend two years building a larger deposit and discover that your borrowing capacity has moved in the opposite direction.
Why?
Because if interest rates rise, bank assessment rates may also increase.
That can reduce the amount you're able to borrow.
You can therefore end up with more deposit but less borrowing power .
Age can matter too
This becomes increasingly relevant for first-home buyers in their 40s and beyond.
Waiting another three or four years doesn't only affect your deposit.
It can also affect the realistic loan term available to you.
A shorter loan term means higher repayments, which can affect the amount the bank is prepared to approve.
That's why I don't look at the deposit decision in isolation.
Waiting has a cost too.
A Real Example: When Waiting for 20% Could Have Cost My Clients Their Home
Let me tell you about a family I worked with who had around a 15% deposit.
They also had some consumer debt.
Their original plan was straightforward:
Pay off the debt.
Save another 5%.
Get to a 20% deposit.
Then buy.
On paper, that seemed sensible.
But there was another part of the equation.
They'd found a new-build property in their preferred location.
It ticked virtually every box.
It was close to their children's school.
It worked for both parents' workplaces.
It was the type of home they wanted.
They estimated it would take them roughly another two years to build the deposit from 15% to 20%.
After looking at their overall position—their income, their savings pattern, their genuine determination to build a better life—we worked through Step 1 of The Home Ready Method™ together.
The numbers showed they were actually in a stronger position than they realized.
They decided to proceed with the new build rather than wait.
Not long afterwards, interest rates increased.
Had they waited, the resulting servicing calculations would have meant the bank could no longer have approved the same loan amount.
They would have had a bigger deposit.
But they potentially wouldn't have been able to buy the home they wanted.
That's why I don't believe the answer is automatically:
"Wait for 20%."
The right answer depends on your circumstances.
And you can't know your circumstances without knowing your real numbers.
That's Step 1.
If You Have a 10% Deposit, Don't Overlook New Builds
New builds can be particularly interesting for low-deposit buyers.
Qualifying construction loans and purchases of newly built homes from developers within the relevant timeframe are exempt from the Reserve Bank's LVR restrictions.
That doesn't mean a bank has to approve your application. Banks still apply their own lending criteria.
But in my experience, a new build can open options that may not be available for an equivalent existing property.
I've seen circumstances where buyers with around a 10% deposit have access to more favourable lending options and servicing treatment than they would have had buying an existing property.
So if you have 10% and assume you're automatically excluded from buying, I'd investigate your options before reaching that conclusion.
That's exactly what Step 3 of The Home Ready Method™ is about—optimizing your strategy to maximize every opportunity.
What Can Your First-Home Deposit Actually Be Made Up Of?
This is another area where I see considerable confusion.
Your deposit doesn't necessarily have to be one big savings account.
Depending on your circumstances and the lending pathway, it could include several sources.
KiwiSaver
For many first-home buyers, KiwiSaver forms a substantial part of the deposit.
If you've been a KiwiSaver member for at least three years and meet the eligibility requirements, you may be able to make a first-home withdrawal.
Cash savings and investments
Cash you've accumulated and investments such as shares can potentially form part of your genuine savings.
A family gift
Parents helping their children into their first home is very common.
A genuine cash gift can potentially form part of the deposit.
Under the First Home Loan scheme, Kāinga Ora specifically allows the minimum 5% deposit to include gifts alongside savings and eligible first-home withdrawals.
Outside the scheme, individual lender genuine-savings requirements become important, so we need to establish how much you've accumulated yourself and how much is coming from other sources.
Selling assets
Proceeds from selling something such as a car, boat or caravan may also help contribute towards a deposit, depending on the lending pathway and lender requirements.
Again, this is why I don't like giving generic answers to the question:
"Does this count as a deposit?"
The answer depends on the type of application we're putting together.
And that's something we figure out together in Step 2—building your personalized plan.
Sometimes the Best Family Gift Isn't More Deposit
Here's something many families don't realise.
Parents will sometimes say:
"We've got $20,000 to help the kids with their deposit."
But putting the whole $20,000 into the deposit isn't necessarily the best use of that money.
Imagine the buyers also have:
A car loan
A personal loan
And a credit card
Using some family assistance to repay consumer debt could potentially improve the application more than simply increasing the deposit by the same amount.
Banks still regard money given by family to clear the buyer's debts as a gift.
The important difference is what happens to the servicing calculation.
Remove a debt repayment and you potentially free up income that can service a mortgage.
That's why I look at the whole financial position , rather than simply trying to create the biggest possible deposit.
It's about optimizing your complete strategy—that's Step 3 of The Home Ready Method™.
What About Borrowing Your Deposit From Your Parents?
This is different.
A gift and a loan aren't the same thing.
If your parents expect the money to be repaid, you've potentially created another debt commitment.
That needs to be considered as part of the overall lending assessment and can create issues when the money is being relied upon to satisfy deposit requirements.
If family wants to help, it's worth discussing the proposed arrangement with your mortgage adviser and solicitor before moving the money around .
What About Buying a Property With Your Parents?
I'm seeing more families consider this.
And for the right family, it can work extremely well.
You potentially have:
Multiple incomes
Multiple deposit sources
Greater combined borrowing capacity
That can make a property purchase possible where neither generation could achieve the desired result independently.
But there are significant considerations.
The property needs to work for everyone.
If parents and adult children are all going to live there, can you actually find a suitable property?
There are also longer-term financial consequences.
If the children use their KiwiSaver first-home withdrawal, they won't simply get another first-home withdrawal later when they decide they want a property of their own.
And if they're still liable for the original mortgage when they eventually want another home, that debt can affect their future borrowing capacity.
Banks can also be wary of what are sometimes described as borrowers of convenience .
For example, parents shouldn't simply add younger adult children to an application solely to obtain a longer loan term without the children having a genuine material interest in the purchase.
Buying together can be a very good solution.
But everyone needs to understand what they're signing up for—not just today, but five or ten years from now.
Just Because the Bank Will Lend It Doesn't Mean You Should Borrow It
This is one of the most important things I tell clients.
My job isn't to get you the biggest possible mortgage.
It's to help you make a wise financial decision.
There are circumstances where I might be able to obtain an approval but still recommend that a client spends less.
I'd be particularly cautious if:
Almost all available cash will disappear at settlement
The client is only just meeting the bank's minimum servicing requirement
The proposed repayments make the client uncomfortable
There's a known risk to one applicant's income
There's potential workplace restructuring
Or the borrowers simply won't have enough breathing room to enjoy their life after buying
I often ask clients:
"What's the maximum repayment you'd actually be comfortable making?"
Then we compare that with their current rent.
The bank isn't going to make the repayments after settlement.
You are.
That's why your comfort level matters.
I've also noticed an interesting change recently.
During rapidly rising property markets, clients would often ask me:
"What's the absolute maximum you can get me approved for?"
Increasingly I'm hearing something different:
"This is what we're comfortable paying. We still want to have a life."
I think that's healthy.
Buying a home should improve your life, not leave you financially stressed every month simply because the bank was prepared to lend you more.
I believe you deserve to feel safe, not anxious. And that starts with borrowing an amount that lets you sleep at night.
So, Should You Wait Until You Have a 20% Deposit?
Maybe.
But don't make that decision based on a rule that doesn't necessarily exist.
I believe you deserve clarity, not guesswork. And I believe small, consistent steps beat waiting for the perfect moment.
So before you decide to wait another two years, let's look at what that decision actually costs you.
If you're able to build your deposit rapidly, have plenty of suitable properties to choose from and would materially improve your financial position by waiting, then waiting could make perfect sense.
But if it's going to take another two or three years, I'd want to look much more closely at the opportunity cost.
What will happen to:
Your rent?
Property prices?
Interest rates?
Bank assessment rates?
Your age and available loan term?
The supply of suitable properties?
Your own circumstances?
The right answer isn't:
"Always buy with 10%."
And it isn't:
"Always wait for 20%."
The right answer is:
Understand your numbers and make the decision from there.
That's what The Home Ready Method™ is designed to give you—clarity at every step.
How Do You Know Whether Your Deposit Is Enough?
This is ultimately the question that matters.
You might have $35,000.
$70,000.
$120,000.
That number on its own doesn't tell me whether you're ready to buy.
I also need to understand:
Your income.
Your debt.
Your KiwiSaver.
Your expenses.
Your age.
Your savings history.
Your target purchase price.
And the type of property you're considering.
That's one of the reasons I created the Home Ready Calculator .
A normal mortgage calculator typically tries to answer:
"How much might I be able to borrow?"
I wanted to answer a much more useful question:
"How ready am I to buy my first home?"
The Home Ready Calculator looks at your broader financial position and gives you a Home Ready Score out of 100 .
If your score shows you're in a Strong Position , my advice is simple:
Let's talk.
Don't spend another year assuming you need a bigger deposit if you may already be in a position to buy.
And if your score shows that you're getting close?
That's valuable too.
Because now you know where you stand and can start working on the things that could make the biggest difference.
That's what financial clarity gives you.
Not a promise.
A plan.
Find Out If You're Ready to Buy
If you've been saving for your first home but aren't sure whether your deposit is enough, start Step 1 of The Home Ready Method™ right now.
Use my free Home Ready Calculator to get your real numbers—not guesses, not assumptions, but clarity on where you actually stand.
In a few minutes, you'll receive your Home Ready Score and know exactly what to do next.
And if your result shows you're in a strong position?
Book a free clarity call with me.
We'll look at your numbers properly, discuss your lending options, and determine whether it's time to move from saving for your first home to actually buying it.
No judgment. No pressure. Just clarity.
[Use the Home Ready Calculator]
[Book a Free Clarity Call]
Not Ready to Talk to a Human Yet? Start With Lucy.
I get it. Sometimes you just want to understand the process on your own terms first—without pressure, without judgment.
That's why I built Lucy (my AI First Home Guide).
Lucy is available 24/7 to answer your questions about:
How the NZ first-home buying process works
What deposit you actually need
How KiwiSaver works
What grants and schemes you might be eligible for
And anything else you're wondering about
Chat with Lucy now—no obligation, no pressure, just clarity.
No email required.Just clarity.NZ based advice
Know where you stand. Know what's possible.
Because I believe that people who are determined to build a better life—and willing to take small, consistent steps—are the ones who actually become homeowners.
Not people waiting for perfect conditions.
People ready to take action.
And I'm here to help you do exactly that.