Auction Day Cash Required Calculator NZ
There is a specific way first home buyers come unstuck at auction, and it has nothing to do with getting carried away in the bidding. They count their deposit correctly, they get a pre-approval, they do the building report, and then they discover on the day that the largest part of their deposit cannot be used to pay the deposit. A KiwiSaver first home withdrawal goes to your solicitor's trust account and is applied at settlement, weeks later. It is real money and it is genuinely yours, but it is not in your account when the auctioneer asks for it. The gap between the deposit you have and the deposit you can hand over on the day is the number this page exists to produce, because at an auction the bid is unconditional the instant it is accepted and there is no way back from winning something you cannot pay for.
Where your deposit money actually is
| Source | Amount | Available when the hammer falls? |
|---|---|---|
| Cash in your account | $45,000.00 | Yes |
| Family gift already received | $20,000.00 | Yes |
| Anything else available today | $0.00 | Yes |
| KiwiSaver first home withdrawal | $60,000.00 | No, paid to your solicitor at settlement |
| Family gift promised but not received | $0.00 | No, a promise is not cleared funds |
| Total deposit you have | $125,000.00 | |
| Of which, usable on the day | $65,000.00 |
Your total deposit is comfortably enough for a $800,000.00 purchase. The problem is timing, not amount, and it is solvable in advance rather than on the day.
At your intended bid
What each bid level demands
| If the bidding reaches | Deposit needed | Against your available cash |
|---|---|---|
| $650,000.00 | $65,000.00 | $0.00 |
| $700,000.00 | $70,000.00 | -$5,000.00 |
| $750,000.00 | $75,000.00 | -$10,000.00 |
| $800,000.00 | $80,000.00 | -$15,000.00 |
Every bid raises the deposit. A negative figure in the last column is a bid you could win and not be able to pay for.
How to fix it before the auction
The shortfall here is a timing problem with several ordinary solutions, all of which have to be arranged in advance:
- Ask your lender for a short term facility to cover the deposit until settlement, when the KiwiSaver funds arrive
- Ask family to transfer a promised gift before the auction rather than before settlement
- Ask your solicitor whether a deposit bond or guarantee is acceptable under the auction terms for this property
- Ask the vendor's agent, before the auction, whether a lower deposit or a short deferral would be accepted, and get any variation in writing
- Bid only to the level your available cash supports, which is the option that needs no one else's agreement
The deposit and the deposit are two different things
New Zealand buyers use the word deposit for two quite separate amounts and the confusion is expensive. There is the deposit in the lending sense, the equity you are contributing to the purchase, which is what determines your loan to value ratio and includes your KiwiSaver. Then there is the deposit in the contract sense, the sum payable to the vendor on signing, which is a fraction of the price and has to be paid in actual money on the day. Having plenty of the first tells you nothing about having enough of the second, and at an auction only the second matters.
KiwiSaver arrives weeks after you need it
A first home withdrawal is paid by the provider to your solicitor's trust account and applied at settlement. The provider needs notice, the application has requirements, and none of that happens between the hammer falling and the moment you are asked for the deposit. This is not a flaw in the scheme; it works exactly as intended for a normal conditional purchase where settlement is weeks away and the deposit is a smaller sum you can cover. It only becomes a problem at auction, and it becomes one reliably.
Every bid raises the number
The deposit is a percentage, so it moves with the bidding. A buyer who has checked they can cover the deposit at the price they expect has not checked they can cover it at the price they might end up paying, and the whole point of an auction is that those two figures differ. Working out the highest bid your available cash actually supports converts this into a hard limit you can decide on before you arrive, which is considerably easier than doing the arithmetic in a room with an auctioneer looking at you.
Worked example
A buyer intends to bid up to $800,000.00 at an auction where the terms require a 10% deposit, so $80,000.00 is payable on the fall of the hammer.
They have $45,000.00 in their account and a family gift of $20,000.00 already received, so $65,000.00 is genuinely available on the day. Their KiwiSaver first home withdrawal of $60,000.00 is not, because it goes to their solicitor at settlement.
That leaves them $15,000.00 short at their intended bid, and the highest bid their available cash supports is $650,000.00, which is $150,000.00 below where they were planning to stop. Their total deposit of $125,000.00 is more than adequate for the purchase, so this is a timing problem rather than a shortage, and it has to be solved before the auction rather than at it. They have also already spent $2,650.00 on due diligence which they do not get back either way.
How this is calculated
The deposit required is your intended bid multiplied by the deposit percentage from the auction terms. Available on the day is the sum of cash in your account, any family gift already received, and anything else you can realise immediately. Funds counted separately, and excluded from that total, are the KiwiSaver first home withdrawal and any gift that has been promised but not transferred, because neither can be handed over when the hammer falls. The shortfall is the deposit required less the available amount. The highest bid your cash supports is the available amount divided by the deposit percentage, which is the price at which the deposit exactly consumes the money you have. The bid ladder repeats that comparison at four price points up to your limit.
Official sources
- Buying at auction, Real Estate Authority
- Withdrawing for a first home, KiwiSaver
- First home withdrawal, Inland Revenue
- Auctioneers Act 2013, legislation.govt.nz
Related NZ calculators
- Unconditional Offer Risk Calculator for what an unconditional commitment is worth
- Deposit at Risk Calculator for the exposure if you cannot settle
- Mortgage Pre-Approval Expiry Calculator for whether your finance is current
- KiwiSaver First Home Withdrawal Calculator for what you can withdraw
- Auction vs Deadline Sale Calculator for how the methods differ
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