If New Zealand Gets a Capital Gains Tax, Should That Stop You From Buying a Home?

Capital gains tax.

Three words that can make a property conversation sound complicated very quickly.

There has been plenty of talk about it lately, and naturally, some potential home buyers are asking: Should I wait and see what happens before I buy?

For most people buying a home to actually live in, the answer is probably much simpler than you think.

Before we go any further, one important point: as at July 2026, New Zealand does not have the capital gains tax being discussed. What is currently on the table is a Labour Party proposal, and it would still need to become law before anything changes.

So, let’s forget the political noise for a moment and look at what it could actually mean for you.

First, What Exactly is Capital Gains Tax (CGT)?

A capital gain is simply the profit you make when something increases in value.

Let’s say you buy a property for $700,000 and eventually sell it for $900,000.

In very simple terms, the capital gain is $200,000.

A capital gains tax, or CGT, is a tax on some or all of that gain. It is not a tax on the full $900,000 sale price.

That distinction matters.

So, What is Actually Being Proposed?

Under Labour’s current proposal, a 28% tax would apply to future profits made when residential investment property or commercial property is sold.

The big point for everyday home buyers is this: The family home would be exempt.

The proposal would also only apply to gains made after 1 July 2027. Gains made before that date would not be included. This is a proposal, not current law.

New Zealand already has rules that can tax certain property sales. For example, the current bright-line test can apply when a residential property is sold within two years of the relevant purchase date. The proposed CGT would be a different and broader tax aimed specifically at future gains on investment and commercial property.

What Would This Mean If You Are Buying Your First Home?

Let’s meet our completely fictional first-home buyers, Sam and Jess.

They buy a home for $800,000.

They live there for 10 years, raise a family, paint the lounge three times, spend far too much money at Bunnings and eventually sell it for $1.1 million.

That is a $300,000 increase in value.

Under the current proposal, if the property is their family home, that gain would be exempt from the proposed capital gains tax.

Capital Gains Tax bill: $0.

That is the part many potential buyers are missing.

If you are buying a home to live in, the current proposal is not designed to take 28% of the increase in value when you eventually sell your family home. Would a proposed capital gains tax stop a first-home buyer from buying?

On its own, no.

Where Could It Make a Bigger Difference?

Investment property.

Imagine an investment property is worth $800,000 when the proposed tax begins.

Several years later, it sells for $1 million.

That is a $200,000 gain after the proposed start date.

In a very simplified example:

$200,000 gain × 28% = $56,000 in capital gains tax.

The actual calculation would depend on the final legislation and whatever rules are eventually introduced around valuations, costs, losses and other adjustments. But the important point is that an investor may no longer keep the full capital gain.

That changes the maths.

An investor might start asking:

• Is the rental income strong enough?
• Is this still worth holding long term?
• Could my money earn a better return somewhere else?
• Do I still want to compete for this property?

And that is where a CGT could potentially have an indirect effect on home buyers.

Could First-Home Buyers Face Less Competition?

Possibly.

A capital gains tax would make some property investments less attractive because part of the future profit could go to tax.

An investor who previously bought mainly because they expected a large tax-free capital gain may think twice.

That could mean fewer investors competing with owner-occupiers for some types of homes.

But here is the important word: Could.

A capital gains tax does not magically make houses cheap overnight.

Property prices are influenced by a long list of factors:

Interest rates. Mortgage affordability. Housing supply. Population growth. Bank lending rules. Employment. Buyer confidence. And, of course, how many people want to buy the same house at the same time.

Economic analysis of capital gains taxation also suggests the impact can be complex. A tax may change investor demand and put some downward pressure on prices, but the effect on prices, rents and housing supply depends heavily on how the market responds. In other words, anyone confidently telling you exactly what house prices will do because of one tax policy probably owns a better crystal ball than we do.

What Can Australia Teach Us?

Australia is useful because it has had a capital gains tax system since 1985. Australian system is different from what is being proposed here, so it is not a perfect comparison.

But there is one important similarity.

An Australian homeowner’s main residence is generally exempt from CGT, while the sale of an investment property can trigger capital gains tax. Australians still buy homes.

People still upgrade.

They still downsize.

They still invest in property.

The existence of a capital gains tax did not make buying a home pointless.

What it did was make the tax treatment of a home you live in different from the tax treatment of a property you own as an investment.

That is the basic idea behind the current New Zealand proposal too.

There Is One Situation Worth Thinking About

What happens if you buy a home to live in today but turn it into a rental property later?

Life changes.

You might move cities, move overseas, buy with a partner or decide to keep your first home as an investment.

That is where things could become more complicated.

The current proposal clearly exempts the family home, but the final rules would need to deal with situations where a property changes use over time.

So, if a CGT does eventually become law, anyone turning a home into an investment property should get advice before making decisions.

The same applies to people who own multiple properties, holiday homes or properties with mixed personal and rental use.

The words “family home exempt” sound simple.

Real life is not always that simple.

So, Should You Wait?

Here is the question we think matters more: Can you afford to buy, and is buying the right decision for your situation?

Because the biggest risks for most home buyers are not a possible future capital gains tax.

They are things like:

• Borrowing more than you can comfortably afford.
• Buying without understanding your repayments.
• Using every dollar of savings and having no emergency buffer.
• Choosing the wrong loan structure.
• Buying a property that does not suit your longer-term plans.
• Waiting years for the “perfect time” that may never arrive.

Nobody knows exactly what future governments will do with tax policy.

Nobody knows exactly where house prices will be in five years.

And nobody rings a bell to tell you when the perfect time to buy has arrived.

What you can control is whether your mortgage is affordable, whether you have a clear plan and whether the property fits where you want your life to go.

The Bottom Line

If you are buying a home to live in, the current capital gains tax proposal should not, by itself, be the reason you stop looking.

Under the proposal as it stands today, the family home would be exempt.

For investors, the conversation is different. A CGT could change future returns, investment strategies and potentially the level of competition in some parts of the market.

But for an everyday home buyer, the more important questions remain the same:

Can I afford it?

Does it suit my plans?

And is my mortgage set up properly?

Don’t buy because you are scared of missing out.

But don’t put your life on hold because of a tax headline either.

Unsure what you can afford or where to start? Send us amessage. Our advice is free.

Watch the video below as our Director and qualified financial adviser, Mils Muliaina, breaks down what a capital gains tax could mean for everyday home buyers.

This article is general information only and is based on the capital gains tax proposal available as at July 2026. The proposal is not currently law, and details may change. Tax and financial advice should be sought for your individual circumstances.