Kiwibank Is Kiwi-Owned, So Why Do Most New Zealanders Still Bank Elsewhere?

Thursday, 20 August 2026

New Zealand has its own major bank.

Kiwibank is New Zealand-owned. It was created to challenge the established banking market and give customers a locally owned alternative.

Yet more than two decades later, the overwhelming majority of bank lending in New Zealand is still controlled by four Australian-owned banking groups.

According to the Reserve Bank of New Zealand, ANZ, ASB, BNZ and Westpac together account for about 84 percent of bank lending in New Zealand. Five New Zealand-owned banks collectively account for only about 10 percent.

That is a remarkable gap.

And it raises a question that deserves more than a patriotic slogan.

If New Zealand genuinely wants a strong locally owned banking sector, why does so much of our banking business still go elsewhere?

There is another side to that question too.

If Kiwibank wants New Zealanders to choose a Kiwi-owned institution, why should customers move unless its rates, technology, service and products are at least as good as those offered by its much larger competitors?

This is not simply a question for the Government.

It is a question for the Reserve Bank.

It is a question for Kiwibank.

It is a question for the major banks.

And, perhaps uncomfortably, it is also a question for every one of us who has stayed with the same bank for years without seriously comparing alternatives.

First, which major banks are actually New Zealand-owned?

Operating in New Zealand and being New Zealand-owned are not the same thing.

ANZ, ASB, BNZ and Westpac are major New Zealand banking businesses. They employ New Zealanders, lend billions of dollars to households and companies here, and are deeply embedded in the country's financial system.

But their ultimate ownership sits across the Tasman.

Kiwibank, by comparison, remains New Zealand-owned.

New Zealand banking ownership at a glance

The issue is not whether Australian-owned banks belong in New Zealand.

They clearly do.

The issue is whether a banking system where four institutions control such a large share of lending produces enough competition for customers.

84 percent versus 10 percent

This is the number that should sit at the centre of the debate.

The Reserve Bank says the four large Australian-owned banks account for approximately 84 percent of bank lending, while five New Zealand-owned banks account for around 10 percent.

That level of concentration would matter regardless of whether the owners were Australian, American, British or New Zealand-based.

The nationality makes the discussion more interesting.

The concentration makes it economically important.

The Commerce Commission has already questioned competition

This concern is not simply based on public perception.

The Commerce Commission's market study into personal banking concluded that New Zealand's four largest banks do not face strong competition.

That should matter to customers.

Competition is what forces businesses to fight for customers through better prices, improved technology, stronger service and new products.

When customers rarely move and a small number of institutions dominate a market, challengers have a much harder job gaining meaningful scale.

For Kiwibank, that is both an opportunity and a problem.

It was created to challenge this very market.

But it remains significantly smaller than the institutions it is supposed to challenge.

Kiwibank was created for a reason

Kiwibank began operating in 2002.

The idea was straightforward.

New Zealand should have a significant locally owned bank capable of competing with the large overseas-owned institutions dominating the market.

That mission still makes sense.

But a bank cannot become a serious competitor simply because people like the idea of supporting something Kiwi.

Banking requires enormous amounts of capital.

If a bank wants to write more mortgages, more business loans and more commercial lending, it must have enough capital behind those loans.

It also needs:

• modern digital banking systems
• strong cybersecurity
• sophisticated fraud detection
• reliable payment infrastructure
• business banking capability
• international payment services
• regulatory and compliance teams
• strong risk management
• enough customers to spread those costs across a large business

That is where Kiwibank's challenge becomes much more complicated than simply saying "support your local bank".

The Government has been trying to make Kiwibank stronger

The Government has already recognised that Kiwibank needs greater capacity to grow if it is expected to put meaningful pressure on the established banks.

In 2025, Cabinet approved work allowing Kiwibank's parent, Kiwi Group Capital, to pursue a capital raise of up to $500 million.

That private capital-raising process was subsequently discontinued in December 2025.

Treasury has continued examining Kiwibank's long-term growth and competitiveness during 2026.

Government material indicates that changes affecting bank capital have improved Kiwibank's medium-term position, while the longer-term question of reliable access to growth capital remains under consideration.

That creates a legitimate question for the Government.

If Kiwibank is supposed to become a serious challenger, what is the long-term plan?

Not simply for the next year.

For the next 10 or 20 years.

Why not give more government banking business to Kiwibank?

It is an obvious question.

New Zealand taxpayers fund enormous government operations.

Government agencies process salaries, supplier payments, benefits, taxes and countless other financial transactions.

So why should more of that business not be directed through a New Zealand-owned bank?

There is merit in asking whether domestic capability should receive more weight when major government banking arrangements are considered.

But forcing every government transaction through Kiwibank would not necessarily be sensible.

Government banking involves far more than ordinary payments.

It requires high-volume transaction processing, cybersecurity, resilience, foreign exchange, treasury functions, disaster recovery and systems capable of operating at enormous scale.

Putting everything through a single institution could also create operational and concentration risks.

So the serious question should not be:

Why doesn't the Government force everyone to use Kiwibank?

The better question is:

When major government banking contracts are awarded, is enough consideration given to building New Zealand-owned banking capability alongside price, service, security and resilience?

That is worth discussing.

What should the Reserve Bank be doing?

The Reserve Bank of New Zealand is responsible for financial stability.

Its job is not to favour Kiwibank simply because it is New Zealand-owned.

It must regulate banks prudently and make sure the financial system remains strong.

But there is an important competition question sitting beside that responsibility.

Large banks can absorb regulatory costs much more easily than smaller banks.

A compliance programme costing millions of dollars can be spread across a huge customer base at a major bank.

For a smaller challenger, the same cost can be much more significant.

Capital requirements can create similar effects.

Rules designed to make banks safer can sometimes unintentionally strengthen the competitive advantages of scale.

That means the Reserve Bank must constantly balance two important questions:

Are our banks safe?

And:

Can smaller institutions still realistically compete?

New Zealanders are entitled to expect the regulator to consider the impact its rules have on competition while still doing its primary job of protecting financial stability.

Kiwibank must answer uncomfortable questions too

Kiwibank cannot simply tell people:

"We are Kiwi-owned, therefore bank with us."

That is not enough.

Customers make decisions based on what works for them.

A family with a large mortgage will compare interest rates.

A saver will compare deposit rates.

A business will look at payment systems, transaction services and integration with accounting software.

Someone who has experienced fraud will care about security and how quickly their bank responds.

A younger customer may judge a bank almost entirely through its mobile app.

An exporting business may care heavily about international payments and foreign exchange.

Being New Zealand-owned can be an advantage.

It should not become an excuse.

New Zealanders should not have to pay a patriotism premium

Imagine one lender offers a household a significantly better mortgage package than another.

On a large mortgage, even a small difference in interest rates can mean thousands of dollars.

Should that household accept the more expensive deal simply because one bank is New Zealand-owned?

Probably not.

Supporting New Zealand business makes sense when the value is competitive.

But people should not be financially punished for doing it.

The challenge for Kiwibank and other locally owned institutions is therefore clear:

Make choosing New Zealand-owned commercially sensible as well as emotionally attractive.

If the service is excellent, the rate is competitive and the technology works, local ownership becomes another strong reason to choose that bank.

If the product is weaker, customers will continue going somewhere else.

Technology matters more than ever

Banks are no longer competing mainly through physical branches.

The battleground is increasingly digital.

Customers now judge banks on:

• mobile apps
• instant payments
• online account opening
• fraud protection
• identity verification
• business integrations
• customer support
• international transfers
• data sharing
• open banking

This is one area where smaller banks cannot afford to fall behind.

A Kiwi-owned bank will not become a stronger challenger because people feel sorry for it.

It will grow if people actually enjoy using it.

Open banking could help challengers

One of the most significant changes underway in New Zealand banking is open banking.

The regulated system began taking effect from December 2025, starting with the four major banks.

The principle is simple.

Customers should have greater ability to securely share their banking information with approved providers and use new financial services.

Why does this matter?

Because one of the strongest advantages established banks have is customer inertia.

Changing banks can feel painful.

Your salary is connected.

Direct debits are connected.

Automatic payments are connected.

Cards are connected.

Your mortgage may be connected.

Business systems may be connected.

So people stay.

Even when they are unhappy.

Open banking has the potential to make comparison and movement easier.

If switching becomes easier, incumbent banks will have to work harder to keep customers.

That should also create a better opportunity for Kiwibank and other challengers.

Perhaps we need to question ourselves too

It is easy to blame the Government.

Or the Reserve Bank.

Or Kiwibank.

But customers shape markets.

Many New Zealanders have been with the same bank for years.

Some have stayed with the institution where their parents opened their first account.

Changing banks feels inconvenient, so people simply do nothing.

That behaviour has economic value.

It gives established banks a major advantage.

If customers rarely leave, a competitor can offer a better product and still struggle to win their business.

So perhaps every New Zealander should ask:

When did I last properly compare my bank?

Not complain about it.

Compare it.

Look at the mortgage rate.

Look at savings rates.

Look at fees.

Look at customer service.

Look at technology.

Look at another bank.

Then decide.

Webfit News Community Pulse 2026: Vote for New Zealand's best bank

This debate should not only be between politicians, regulators, economists and bank executives.

We also want to hear directly from the people actually using these banks every day.

Webfit News is asking readers to take part in our Community Pulse 2026 poll and tell us which bank they believe is the best in New Zealand right now.

Your choice might come down to:

• home loan rates
• savings rates
• customer service
• mobile banking
• business banking
• trust
• branch access
• fees
• reliability
• fraud protection
• overall value

There is no single reason everyone chooses a bank.

That is exactly why we want people to vote based on their own experience.

Vote for your best bank in New Zealand

https://poll.webfitnews.co.nz/polls/new-zealand-favourite-bank-2026

If you have had a particularly good or poor experience with a bank, we would also like to hear why when this article is shared on social media.

Maybe your bank helped you when you were struggling.

Maybe its mortgage team gave you an excellent deal.

Perhaps its app is simply better than everyone else's.

Or perhaps you have stayed with the same bank for 20 years but are now wondering whether you should look elsewhere.

The Community Pulse poll is not a scientific or nationally representative survey. It is a voluntary Webfit News reader poll designed to provide a snapshot of the opinions of people who choose to participate.

But it could still tell us something useful.

Which banks have earned the strongest goodwill?

Which banks are delivering the best customer experience?

And does New Zealand ownership actually influence the way people choose their bank?

If Kiwibank and other New Zealand-owned banks want to grow, public trust and customer experience matter.

If ANZ, ASB, BNZ and Westpac continue to dominate, customers should be able to tell us what they are doing right.

So the question is simple:

Which bank do you believe is New Zealand's best right now, and why?

Vote now:

https://poll.webfitnews.co.nz/polls/new-zealand-favourite-bank-2026

This is not an anti-Australian argument

That point needs to be clear.

ANZ, ASB, BNZ and Westpac are deeply embedded in New Zealand.

They employ thousands of people.

They lend to households, farmers and businesses.

They provide essential financial infrastructure.

This is not an argument that foreign ownership is automatically bad.

The issue is concentration and competition.

When four institutions account for approximately 84 percent of lending, it is reasonable to ask whether challengers are strong enough to keep them under genuine competitive pressure.

The Commerce Commission has already raised that concern.

Should "buy Kiwi" apply to banking too?

New Zealanders regularly encourage one another to support local businesses.

Buy New Zealand-grown food.

Support Kiwi manufacturers.

Use local tradespeople.

Shop with independent businesses.

But banking rarely enters the same conversation.

That is surprising when a mortgage may be one of the biggest financial relationships a person will ever have.

A household might deliberately spend extra money buying a New Zealand-made product while sending hundreds of thousands of dollars of mortgage business through the same overseas-owned banking group for decades without ever comparing alternatives.

That does not mean everyone should move to Kiwibank tomorrow.

It means perhaps everyone should at least look.

If a New Zealand-owned bank offers the right rate, product and service, then ownership can reasonably become another factor in the decision.

If it does not, the bank needs to improve.

Who needs to answer what?

The bigger challenge belongs to everyone

New Zealand cannot say it wants a stronger locally owned banking sector and then expect someone else to make that happen.

The Government has a role.

The Reserve Bank has a role.

Kiwibank has a role.

Other challenger banks have a role.

And customers have a role.

Government needs to create conditions where strong domestic challengers can grow.

The Reserve Bank needs to protect financial stability while making sure regulation does not unnecessarily lock in existing market power.

Kiwibank needs to offer products good enough that nobody has to choose between supporting a Kiwi-owned institution and getting a good deal.

And consumers need to be willing to compare.

Because banking competition will not improve simply because another report says it should.

It improves when banks know customers are prepared to leave.

Perhaps the real question for New Zealand in 2026 is therefore not:

Why aren't we all banking with Kiwibank?

It is:

What would Kiwibank and other New Zealand-owned banks need to offer for more of us to genuinely want to?

And while that debate continues, New Zealanders can answer one question immediately.

Which bank do you think is doing the best job today?

Vote in the Webfit News Community Pulse 2026:

https://poll.webfitnews.co.nz/polls/new-zealand-favourite-bank-2026

Sources

Reserve Bank of New Zealand banking sector information and Financial Stability reporting.

Commerce Commission Personal Banking Services Market Study.

New Zealand Treasury material concerning Kiwibank's capital, long-term growth and competitiveness.

Government material relating to banking competition and Kiwibank.

Kiwibank corporate and customer banking information.

MBIE information on New Zealand's open banking framework.

Webfit News Community Pulse 2026 reader poll.