Expert Tips and Guides

How Much Deposit Do I Need for a $700k First Home?

FHSS & KiwiSaver

“How much deposit do I actually need?” is one of the first questions almost every first home buyer asks. The internet will happily throw numbers at you – 5%, 10%, 20% – without explaining what they really mean in practice. 

In this guide, we’ll walk through the deposit question using a simple $700,000 property example. We’ll look at: 

  • The difference between your deposit and your total funds to complete. 
  •  What it can look like to buy with 20% vs 10% vs a smaller deposit. 
  • How lenders mortgage insurance (LMI) fits into the picture.
  • How the Super Saver (FHSS) scheme can help citizens and permanent residents save.
  • What Kiwis with KiwiSaver might be able to do when buying in Australia. 

This is general information only. It doesn’t take into account your full situation. When you’re ready, we can go through your numbers properly and build a plan that actually fits your life.

Deposit vs Funds to Complete – Why the Difference Matters

Most first home buyers think in terms of a simple percentage deposit – “I’ve got 10%” or “I’m aiming for 20%”. That’s a good starting point, but when it comes to actually settling on a property, what really matters is your total funds to complete.

Your Deposit

Your deposit is the chunk of money you put towards the purchase price.

example:

On a $700,000 property, a 10% deposit would be $70,000.

A 20% deposit would be $140,000. 

Funds to Complete

Your funds to complete is the total cash you need available by settlement, which usually includes: 

Your upfront costs – for example, stamp duty (if payable), conveyancing/solicitor fees, building and pest inspections, and government/bank fees. 

Your buffer – what you have left after settlement for furniture, small repairs and sanity. 

In plain English: Your deposit is what you put into the purchase price. Your funds to complete is the total cash you need to safely get the keys and still have something left in the bank. 

Do I Really Need a 20% Deposit for a $700k Property?

The short answer: not necessarily.

A 20% deposit has traditionally been seen as the “gold standard” because it typically means you avoid Lenders Mortgage Insurance (LMI) with most lenders. On a $700,000 property, 20% would be $140,000. But plenty of first home buyers purchase with less than 20%. You might buy with 10%, 5%, or even less in some cases – it just changes the trade-offs. 

What a 20% Deposit Looks like on $700k 

What a 10% Deposit Looks like on $700k 

Deposit: $140,000 

Deposit: $70,000 

Loan amount: $560,000 

Loan amount: $630,000 

LMI: Usually not required 

LMI: Usually required (can add $10,000–$20,000+ depending on lender and situation) 

Estimated upfront costs: ~$15,000–$25,000 (varies by state and situation) 

–

Total funds to complete: Roughly $155,000–$165,000 plus your buffer 

Total funds to complete: Roughly $85,000–$110,000 plus your buffer (depending on LMI and costs) 

Neither option is right or wrong. It depends on your timeline, how quickly you’re saving, and how comfortable you are with a larger loan and potentially paying LMI. 

What Is Lenders Mortgage Insurance (LMI) and How Does It Fit In? 

LMI is insurance that protects the lender (not you) if you default on your loan. It’s typically required when you borrow more than 80% of the property’s value – in other words, when your deposit is less than 20%. 

When LMI typically comes into play 

If you’re buying a $700,000 property with a 10% deposit, you’re borrowing 90% of the property value. That usually triggers LMI. The cost of LMI varies based on your deposit size, loan amount, and the lender. On a $630,000 loan (90% LVR), LMI could be anywhere from $10,000 to $20,000+ – it depends on the lender and your situation. 

How LMI is paid 

LMI is usually added to your loan balance (capitalised), so you don’t have to pay it upfront out of your savings. That can actually help you get into a property sooner, since you’re not draining your cash reserves. 

The trade-off: you’re borrowing more and paying interest on the LMI amount over time. 

First Home Super Saver Scheme (FHSS) – Citizens & Permanent Residents

If you’re an Australian citizen or permanent resident, the First Home Super Saver (FHSS) scheme may help you boost your deposit by making extra contributions into your super.

 How FHSS works in simple terms

    • You make voluntary contributions into your super fund (before-tax or after-tax, within contribution caps). 

    • When you’re ready to buy, you apply to the ATO to release eligible FHSS amounts.

    • The money is released to you (with some tax adjustments) and can be used towards your first home deposit. 

A very simple FHSS-style example: Let’s say you’ve been making voluntary super contributions over the past few years and have built up $50,000 in eligible FHSS amounts. You could apply to withdraw that $50,000 (subject to release rules and any tax) and add it to your other savings. If you had $90,000 in regular savings plus $50,000 from FHSS, you’d have $140,000 available – enough for a 20% deposit on a $700,000 property. 

 

IMPORTANT
This is illustrative only. The actual amount you can withdraw depends on your contribution history, caps, and ATO rules at the time. Always check current guidelines and consider getting tax advice. 

Not sure how your deposit stacks up?

KiwiSaver and Buying Your First Home in Australia (For Kiwis) 

If you’re a New Zealander who’s moved to Australia, you might have money sitting in KiwiSaver back in NZ that could potentially be used towards your first home here.

Moving KiwiSaver to Australia

Under trans-Tasman portability rules, you may be able to transfer your KiwiSaver balance into an eligible Australian superannuation fund. Once it’s in Australian super, it generally follows Australian super rules – including, potentially, the FHSS scheme. 

Using KiwiSaver money via FHSS once it’s in Australian super 

If your transferred KiwiSaver funds are held in your Australian super, you may be able to use a portion via the FHSS scheme – up to the relevant caps and rules. 

Example: if you transfer $40,000 from KiwiSaver and then make additional contributions, you might eventually be able to release some of that via FHSS towards your deposit. 

This is a technical area with changing rules. Before you make any moves, it’s worth speaking with your KiwiSaver provider, your Australian super fund, and potentially a tax adviser. 

How Grants, Concessions and Schemes Fit Into the Picture  

Here are three simplified scenarios to show how deposit, LMI, and FHSS can fit together.

These are illustrative only – your real numbers will depend on your state, lender, and situation. 

Scenario 1 – 20% deposit, with part coming from FHSS 

  • Cash savings: $90,000
  • FHSS withdrawal: $50,000
  • Total deposit: $140,000 (20%)
  • Loan amount: $560,000
  • LMI: Not required
  • Estimated costs: ~$20,000
  • Total funds to complete: ~$160,000

Scenario 2 – 10% deposit, pay LMI, buy sooner  

  • Cash savings: $90,000
  • Deposit: $70,000 (10%)
  • Loan amount: $630,000
  • LMI (capitalised): ~$15,000
  • Estimated costs: ~$20,000
  • Total funds to complete: ~$90,000 (plus buffer) 

Scenario 3 – Building up to 10% with help from FHSS or KiwiSaver

  • Current savings: $50,000
  • Expected FHSS/KiwiSaver contribution: $20,000
  • Target deposit: $70,000 (10%)
  • Timeline: 12–24 months of additional saving

Quick Deposit Planning Checklist 

✔️ Decide on a rough target price range (for example, around $700,000). 

✔️ Work out your current savings, debts and super/KiwiSaver balances. 

✔️ Estimate your deposit position now – is it closer to 5%, 10% or 20% of your target price? 

✔️Get a rough feel for your total funds to complete (deposit + costs + buffer). 

✔️ If you’re a citizen or PR, check whether FHSS might fit into your plan. 

✔️ If you’re a Kiwi, find out what’s possible with your KiwiSaver and potential transfer to Australian super. 

✔️ Check what first home buyer grants, concessions or schemes might apply in your state or territory. 

✔️ Book a chat to put all of this together and see whether waiting or buying sooner makes more sense for you. 

Want to map out your full deposit plan?
Final note and general advice warning 

This article is general information only. It doesn’t take into account your full financial situation, needs or objectives. Home loan policies, government schemes, FHSS rules and KiwiSaver transfer rules all change over time. 

Before you make big decisions about buying a home or using super/KiwiSaver towards a deposit, it’s worth getting personalised advice based on your real numbers. If you’d like a calm, no-pressure chat to map out your deposit options, you’re welcome to get in touch and we can go through it together. 

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