KiwiSaver First-Home Mistakes in NZ (2026): The Five That Cost You Deposit

Five KiwiSaver first-home mistakes that can cost New Zealanders deposit in 2026, from leaving the withdrawal too late to staying in a growth fund right before settlement.

Buying your first home is the biggest financial decision most New Zealanders make, and KiwiSaver is usually the engine behind the deposit. But the rules around a first-home withdrawal are tighter and less forgiving than people expect, and the small mistakes do not announce themselves. They surface on settlement day, when there is no time left to fix them.

This guide to the KiwiSaver first-home mistakes NZ buyers make walks through the five most common, what each one actually costs, and how to avoid every one of them with a single plan before you sign.

TL;DR: The five KiwiSaver first-home mistakes are applying too late, staying in a growth fund near settlement, forgetting the $1,000 you must leave behind, assuming the First Home Grant still exists (it closed 22 May 2024), and buying with no mortgage protection. Most providers need 10 to 15 working days to pay out. ¹³⁴

What does it cost to get a KiwiSaver first-home withdrawal wrong?

A first-home withdrawal lets eligible KiwiSaver members pull out almost all of their balance, including their own contributions, employer contributions and the government contributions, to put towards a first home. You must leave at least $1,000 in the account, and the original $1,000 government kick-start (paid to early joiners) plus any transferred Australian superannuation principal cannot be withdrawn. ³

With the REINZ national median sale price sitting at $753,106 in January 2026, broadly flat year-on-year (up just 0.4%), a KiwiSaver balance is often the difference between a 10% and a 20% deposit. ¹¹ When the deposit is that load-bearing, a process mistake can cost you the house.

The table below maps each mistake to its fix.

Five deposit-shrinking mistakes and their fixes

Source: IRD and Kāinga Ora rules. ³⁴

Mistake 1: leaving the withdrawal application too late

This is the one that costs people their house. A first-home withdrawal is not instant. Most KiwiSaver providers state they need 10 to 15 working days to process the application, and they pay the money to your solicitor to forward to the vendor on settlement day. ¹ ASB, for example, says it takes around ten working days. ²

Providers also draw a hard line at the settlement date. Milford requires all your documentation at least 10 business days before settlement and states plainly it cannot make payments after the settlement date. ⁹ Kernel Wealth's withdrawal can take 6 business days from the moment the application is approved ¹⁰, which sounds fast until you remember approval comes after they have received a completed form, a signed Sale and Purchase Agreement, and your solicitor's trust account deposit slip. (Providers use "working days" and "business days" to mean the same thing, weekdays excluding public holidays, so do not assume the counts differ.)

What "working days" actually means on a 4-week settlement

Scenario: You go unconditional on a Monday with a standard four-week settlement. That is 20 working days away.

The timing is tight. A single missing signature or a public holiday can swallow the buffer. Start the withdrawal the day you go unconditional, not the week before settlement. See our KiwiSaver first-home service for a document checklist.

Mistake 2: staying in a growth fund right before settlement

Growth funds are the right home for KiwiSaver money you will not touch for a decade. They are the wrong home for a deposit you need in three months. The same volatility that compounds beautifully over 20 years can wipe out a chunk of your deposit in a single bad quarter, and a first-home buyer near settlement has no time to recover.

With the national median around $753,106 and broadly flat year-on-year, the market is high-value but not rising fast enough to bail you out. ¹¹ A 10% dip in a growth fund the month before settlement is real money gone for good at the exact moment you need it, and a flat market will not quietly top your deposit back up before settlement day.

How fund choice changes a $60,000 deposit

Scenario (illustrative figures only): Two first-home buyers each hold $60,000 in KiwiSaver, settling in three months. Markets fall 8% over that window. The numbers below are indicative, used to show the size of the gap rather than to predict any specific fund's return.

A gap of that size matters for a buyer whose loan-to-value ratio (LVR, how much you are borrowing against the property's value) tips above 80%, the level at which banks charge more and lend less freely. The fix is to move into a cash or defensive fund once a purchase becomes real. Every major provider (Simplicity, Booster, Generate, Fisher Funds, Milford, Kernel, ANZ) offers one, and switching is free. Consider a KiwiSaver review before you switch, because the timing of the switch matters as much as the destination.

Mistake 3: forgetting the $1,000 you can't withdraw

This is a small mistake with an awkward landing. The rules require that at least $1,000 must remain in your KiwiSaver account after a first-home withdrawal. ³ On top of that, the original $1,000 government kick-start and any Australian super principal you transferred over cannot come out at all. ³ Milford and MoneyHub both confirm the same: you leave the $1,000, you cannot touch the kick-start, and you cannot withdraw transferred Australian complying super. ⁹¹² ASB states the same, that you can withdraw everything except the $1,000 and any Australian super transfers. ²

If your deposit calculation assumed your full balance, you are short by $1,000 (and possibly $2,000 with the kick-start) on the day the bank wants cleared funds. It rarely sinks a deal on its own, but it is the kind of surprise that triggers a frantic last-minute scramble for cash. Build the $1,000 out of your numbers from the start.

Mistake 4: assuming the First Home Grant still exists

A surprising number of first-home buyers still build the old First Home Grant into their deposit plans, money that was worth up to several thousand dollars per buyer. It no longer exists. Kāinga Ora stopped accepting new applications for the First Home Grant from 1:00pm on 22 May 2024, Budget 2024 day, and the grant is closed to new buyers. ⁴

If your plan, your spreadsheet, or a well-meaning relative is counting on grant money, that gap has to be filled from somewhere else. The KiwiSaver first-home withdrawal itself is still very much alive, but it is now doing the job the grant and the withdrawal used to share. Plan your deposit on the withdrawal alone.

While the grant is gone, the wider KiwiSaver settings still help you build the deposit faster. From 1 July 2025 the government contribution is 25 cents for every $1 you contribute (down from 50c), to a maximum of $260.72 a year, and you must contribute at least $1,042.86 of your own money between 1 July and 30 June to get the full amount. ⁵ Members earning over $180,000 a year are no longer eligible, while 16-17 year olds who contribute became eligible. ⁶ Run your own numbers through our KiwiSaver health check to see whether you are on track for the full contribution this year.

KiwiSaver settings that affect your deposit build (2026)

Mistake 5: buying with no protection on the new mortgage

The fifth mistake does not shrink your deposit. It risks the whole house. People pour everything into the deposit, sign a 30-year mortgage, and arrive at settlement with no plan for what happens if illness, injury or redundancy stops the income that services it.

ACC covers accidents, not illness, so a serious illness can stop your income with no ACC backstop while the mortgage payments carry on regardless. Mortgage protection and income protection help keep the household in the home when the income that services the loan stops. We arrange this independently, comparing across the major NZ insurers rather than selling our own product, through our mortgage protection service. Arrange it before settlement, not after.

How to avoid every one of these with a single plan

These five mistakes share a single root cause: the deposit gets all the attention and the process gets none. Every one of them is solved by a short conversation the day you start looking seriously, not the week you settle.

A first-home plan from an independent adviser does three things at once. It locks your withdrawal timeline to your settlement date so the funds arrive. It matches your fund choice to your horizon so a market dip cannot reduce your deposit at the wrong moment. And it puts protection on the mortgage so the home survives a bad year. Book a free KiwiSaver review with a Smiths adviser. Book a review

Your mistake-proofing checklist

01. Start the withdrawal the day you go unconditional. Assume 10-15 working days of processing and add a buffer for documents and long weekends. ¹

02. Move your KiwiSaver to cash or conservative once a purchase is real. Protect the deposit from a near-settlement market dip; a market that is flat year-on-year will not recover a fall for you in time.

03. Subtract the $1,000 (and any kick-start) from your deposit numbers. It legally cannot be withdrawn. ³

04. Delete the First Home Grant from your plan. It closed on 22 May 2024 and is not coming back. ⁴

05. Arrange mortgage and income protection before settlement. ACC does not cover illness; the mortgage does not pause.

06. Book a single review that ties all five together. Use the KiwiSaver health check, then book a review to pressure-test the plan.

Frequently asked questions

How long does a KiwiSaver first-home withdrawal take in NZ?

Most providers state they need 10 to 15 working days to process a first-home withdrawal application. ¹ ASB says around ten working days. ² Milford requires documentation at least 10 business days before settlement ⁹, and Kernel Wealth's process can take 6 business days from approval. ¹⁰ Apply the day you go unconditional to be safe.

Can I withdraw all of my KiwiSaver for my first home?

Almost. You can withdraw your contributions, your employer's contributions and the government contributions, but at least $1,000 must remain in the account. The original $1,000 government kick-start and any transferred Australian superannuation principal cannot be withdrawn. ³

Does the First Home Grant still exist in 2026?

No. Kāinga Ora stopped accepting new First Home Grant applications from 1:00pm on 22 May 2024, and the grant no longer exists for new buyers. ⁴ The KiwiSaver first-home withdrawal is still available.

Should I move my KiwiSaver out of a growth fund before buying?

For money you need within a year, most advisers move it to a cash or conservative fund. A growth fund can fall sharply in a single quarter, and with the national median around $753,106 and broadly flat, the wider market will not necessarily recover your deposit in time. ¹¹ Get advice on the timing through a KiwiSaver review.

How much is the KiwiSaver government contribution in 2026?

From 1 July 2025 it is 25 cents for every $1 you contribute, to a maximum of $260.72 a year. You must contribute at least $1,042.86 of your own money between 1 July and 30 June to receive the full amount, and members earning over $180,000 are no longer eligible. ⁵⁶

Do I need mortgage protection as a first-home buyer?

It is not legally required, but it is what keeps the home if illness, injury or redundancy stops your income. ACC does not cover illness, and the mortgage payments do not pause. We arrange mortgage protection independently across the major NZ insurers.

General information, not personalised financial advice. Seek advice tailored to your situation before acting. Craig Smith Business Services Ltd (FSP712931), trading as Smiths Financial, holds a Class 2 licence issued by the Financial Markets Authority and is a member of the Financial Dispute Resolution Service (FDRS). Written by Henry Smith, Financial Adviser; reviewed by Craig Smith, Principal Adviser. Last reviewed 16 June 2026.