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If the main question for you is “which tax policies could change the size of the deposit I need, how quickly I can save it, or the price of the home I’m trying to buy?”, the 2026 parties are offering quite different approaches.

The election is on 7 November 2026, and the tax debate broadly divides between parties proposing to tax property/wealth more heavily and parties proposing to keep or reduce those taxes. New Zealand Parliament dissolved ahead of tight November vote

The main proposals

Party	Property/capital tax proposal	What it could mean for a prospective first-home buyer
Labour	28% capital-gains tax on investment residential and commercial property, excluding the family home, farms, shares and KiwiSaver. Applies to gains accruing after 1 July 2027. Capital Gains Tax to Level the Playing Field for Businesses, Create Jobs and Fix New Zealand's Health System	Could reduce the tax advantage of investment property relative to owner-occupation. If it reduced investor demand, that could put downward pressure on house prices, potentially helping buyers. But the effect on prices and rents isn't certain.
Greens	2.5% annual tax on net assets above $10m, excluding the family home; 33% tax on gifts/inheritances over $1m, with family homes/farms exempt. Also proposes reversing recent landlord tax cuts and restoring a 10-year bright-line period. Greens commit to tax the super-rich and large corporates fairly, cut income tax for 96% - Green Party of Aotearoa New Zealand	The wealth tax itself is unlikely to affect a normal first-home buyer directly. The landlord-tax changes could affect investment-property returns and therefore investor demand, rents and prices; the direction and size of those effects are contested.
Opportunity	1.75% annual Land Value Tax on urban land (0.5% rural), alongside a Citizen's Income. The tax is on the value of the land, not the building. Tax Reset - Opportunity Party	This is potentially much more consequential for ordinary homeowners: you would pay an annual land tax even on your own home. Opportunity argues it would reduce land prices and make housing more affordable, but you'd trade some of the lower purchase price for an ongoing annual tax.
Te Pāti Māori	Proposes a 33% land-banking tax, 2% vacant-house tax and 5% stamp duty on residential sales, with an exemption for first-home buyers buying homes under $1m. Tax Tips: 2026 General Election - Tax Policy Update	The first-home exemption would directly protect qualifying buyers from the stamp duty. Taxes on vacant/land-banked property are intended to discourage holding housing out of use.
National	No new taxes. It is instead proposing to expand access to the First Home Loan scheme so buyers earning up to $300,000 could qualify for a 5% deposit rather than the usual 20%. 2026 Election Policy | National Party	This is the most direct response to your particular problem: it doesn't make the deposit smaller in dollars, but potentially reduces the amount you need to save before getting a mortgage.
ACT	Opposes new broad property/capital-gains taxes and has supported restoring landlord tax deductibility and removing/reducing bright-line-style taxation. ACT New Zealand	The argument is that lower taxes on landlords encourage rental supply and investment. For you, that could mean less pressure on rents while saving, although it doesn't directly lower the deposit requirement.
NZ First	Opposes a comprehensive capital-gains tax and supports property-investment tax deductibility; its published policy also supports a tax-free income threshold. 2023 Election Policies - NZ First	Similar broad direction to National/ACT on property taxation: fewer taxes on property investors, with the potential benefit of supporting rental supply but no direct deposit reduction.

KPMG and PwC's independent tax-policy summaries broadly confirm this split: Labour, the Greens, Te Pāti Māori and Opportunity propose substantially greater taxation of property, land or wealth, while National and ACT favour lower-tax settings; NZ First opposes a comprehensive CGT. Summary of 2026 election tax policies | KPMG NZ

What does this mean for someone in your position?

There are three different levers, and it's useful not to lump them together.

1. The size of the deposit

This is where National's proposal is unusually direct.

The existing First Home Loan scheme allows qualifying buyers to purchase with a 5% deposit, but income caps currently restrict access. National proposes raising the cap to $300,000 for all applicants. National is backing first home buyers | National Party

For example, on a hypothetical $800,000 house:

• 20% deposit = $160,000
• 10% deposit = $80,000
• 5% deposit = $40,000

That's potentially a much bigger change to your timeline than a modest change in your weekly tax bill.

It doesn't, however, make the house itself cheaper, and a low-deposit mortgage can mean higher borrowing, greater exposure to interest rates and potentially additional lending constraints.

2. The price of the house you're trying to buy

This is where Labour, the Greens and Opportunity are pursuing a different theory.

The underlying argument is that New Zealand's tax system has historically made property investment relatively attractive. Taxing investment property or land more heavily could make some investors less willing to bid for housing, potentially shifting the balance towards owner-occupiers.

Labour explicitly argues that its CGT would mean fewer investors competing with first-home buyers. Capital Gains Tax to Level the Playing Field for Businesses, Create Jobs and Fix New Zealand's Health System

But that's an economic mechanism, not a guaranteed outcome. House prices depend heavily on construction, planning, credit conditions, interest rates, population growth and the overall supply of land and homes. A tax change could also be reflected partly in the prices investors are willing to pay rather than producing an equivalent fall in sale prices.

3. Your rent while you're saving

This is especially important in your case because you're effectively trying to save a deposit while paying someone else's mortgage/rent.

Here the parties disagree quite sharply.

Labour says its CGT would not materially increase rents because rents are determined principally by supply and demand, and says the tax is paid when an investment property is sold. Capital Gains Tax to Level the Playing Field for Businesses, Create Jobs and Fix New Zealand's Health System

ACT argues the opposite risk from landlord taxation: it says previous restrictions on mortgage-interest deductibility increased landlords' costs and contributed to higher rents. ACT New Zealand

Neither claim should be treated as a certainty for your particular rental market. The practical question is how landlords respond to tax changes and how many rental properties are supplied, sold or newly built.

The unusual case: Opportunity's land tax

Opportunity's proposal deserves separate attention if you're thinking specifically about the long-term economics of owning a home.

It proposes a 1.75% annual tax on urban land value, while simultaneously reducing other taxes and paying a Citizen's Income. The party's stated objective is explicitly to make homes more affordable by shifting taxation away from work and onto land. Tax Reset - Opportunity Party

Suppose, purely illustratively, you bought a home where the land component was valued at $400,000. A 1.75% land-value tax would be $7,000 per year before any applicable exemption or deferral.

The theory is that because land can't be created or moved, taxing it should be reflected in a lower purchase price for land rather than simply producing higher prices. But that means the comparison isn't simply "cheap house versus expensive house": you'd need to compare the up-front purchase price + mortgage + annual land tax against the alternatives.

That's probably the proposal where I'd pay closest attention to the detailed modelling if you're trying to work out your household's long-term position.

One important distinction

A capital-gains tax is not a tax on your first home under Labour's proposal.

If you buy a house and it remains your family home, Labour says its 28% CGT would not apply when you eventually sell it. Capital Gains Tax to Level the Playing Field for Businesses, Create Jobs and Fix New Zealand's Health System

Likewise, the Greens' proposed wealth tax explicitly exempts the family home. A tax system for all of us - Green Party of Aotearoa New Zealand

So the more immediate question for you isn't “will I have to pay CGT when I sell my first home?” Under these proposals, no. The more relevant question is whether taxing investment property changes the price and availability of the home you are trying to buy today, and what happens to your rent while you're saving.

A useful way to compare the policies

For your circumstances, I'd put the parties' proposals into four columns:

1. How much do we have to save before we can buy?
2. What happens to rents while we're saving?
3. What happens to the price of a typical first home?
4. What ongoing taxes would we pay after buying?

That avoids the trap of assuming that a policy described as a "tax cut" or "capital-gains tax" automatically makes a first home more or less affordable. The effects can occur at quite different points in your journey.

And because this is an election, these are party proposals, not guaranteed future law; coalition negotiations could materially change them. Summary of 2026 election tax policies | KPMG NZ

If you tell me roughly your combined income, current savings and the price range you're targeting (even rounded figures), I can turn this into a concrete comparison—for example, how each approach could affect the number of years it might take you to reach a deposit, without telling you which party to vote for.