How Much Deposit Do You Actually Need to Buy a House in 2026?

Ask five Australians how much deposit you need to buy a house and you will usually get two confident answers: 20%, or whatever gets you through the front door before prices move again. Annoyingly, both answers can be sort of true.

In 2026, the real answer is not just about hitting a magic deposit percentage. It is about whether you can cover the deposit, upfront buying costs, possible LMI, and the repayments after settlement without instantly living on toast and regret.

If you want to run the numbers while you read, start with the Borrowing Capacity Calculator, compare low-deposit scenarios in the LMI Calculator, and check government charges in the Stamp Duty Calculator.

What your deposit actually changes

Your deposit is the portion of the purchase price you are paying yourself instead of borrowing from the lender. A bigger deposit usually means:

• a smaller loan amount
• lower monthly repayments
• more equity from day one
• a better chance of avoiding Lenders Mortgage Insurance, or LMI

LMI is the big one. According to Moneysmart, LMI generally comes into play when you borrow more than 80% of the property value. That means many standard loans start charging it when your deposit is under 20%.

On an $800,000 property, the headline deposit numbers look like this:

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

That part is simple. The messy bit is that deposit does not equal total cash needed.

The cost buyers forget: deposit is only part of the upfront bill

A lot of first home buyers focus so hard on the deposit that the rest of the purchase sneaks up behind them with a folding chair.

Besides the deposit, you may also need money for:

• stamp duty, unless you qualify for a concession or exemption
• conveyancing or solicitor fees
• building and pest inspections
• valuation or lender fees
• moving costs
• a cash buffer for repairs, appliances, and ordinary life nonsense

Stamp duty alone can be huge, depending on the state and purchase price. First home buyer concessions can reduce or remove some of that, but they are state-based and price-capped, so you need to check the actual rules where you are buying, not just hope the internet was feeling generous that day.

Can you buy with a 5% deposit in 2026?

Yes, plenty of buyers still do. But a 5% deposit is where the phrase technically possible starts doing a lot of heavy lifting.

With a standard 5% deposit loan, you are usually borrowing at a 95% loan-to-value ratio. That often means:

• higher LMI on many standard loans
• higher repayments because you are borrowing more
• less equity from day one
• less margin for rate rises, repairs, or job changes

There is one major exception. Eligible buyers may be able to use the Australian Government 5% Deposit Scheme, which replaced the old Home Guarantee Scheme branding and can let you buy with a 5% deposit without paying LMI, subject to property price caps, lender participation and eligibility rules. For some eligible single parents or single legal guardians, the official single-parent pathway can allow an even lower 2% deposit.

That changes the maths a lot. A 5% deposit with no LMI is very different from a 5% deposit plus a chunky insurance premium rolled into the loan.

Why 10% is often the sensible middle ground

If 5% is the aggressive option and 20% is the textbook option, 10% is often the practical option.

For many Australians, 10% is where things start to balance out:

• the loan is smaller than a 95% LVR setup
• LMI is often lower than at 5%
• you may enter the market sooner than waiting years for 20%
• you are more likely to keep some emergency cash after settlement

This matters because a deposit strategy that drains every dollar you have is not actually strong. It just looks disciplined right up until the first strata special levy, plumbing issue, or insurance renewal reminder shows up.

Why 20% is still the benchmark

Twenty percent remains the classic target because it usually gets you to 80% LVR or below, which is where many standard loans avoid LMI. That can mean:

• no LMI on many standard owner-occupier loans
• lower repayments
• more lender choice in some cases
• more equity and a better buffer if prices wobble

The downside is obvious. On an $800,000 property, a 20% deposit is $160,000 before you add stamp duty and the rest. For many buyers, the jump from 10% to 20% is not a quick final sprint. It is another one to three years of saving while rent, living costs and property prices keep moving.

So yes, 20% is clean. It is just not always strategically best if waiting for it keeps shifting the goalposts.

What lenders care about besides the deposit

The deposit matters, but lenders do not assess you on the deposit alone. They also care about:

• your income and employment stability
• existing debts and credit card limits
• your declared living expenses
• the property value and valuation result
• whether you can handle higher repayments if rates rise

APRA's minimum serviceability guidance still requires banks to assess new borrowers at at least 3 percentage points above the loan product rate. In other words, the bank is supposed to test whether you can cope if the rate rises. You should probably do the same, except with even less optimism.

This is why two buyers with the same deposit can get very different outcomes. The stronger deposit can help, but stable income, lower debts, and cleaner cash flow can matter just as much.

A simple way to work out your real target

Instead of asking, “How much deposit should I save?” ask this:

1. What property price range am I actually shopping in?
2. How much could a lender realistically let me borrow?
3. What do 5%, 10% and 20% look like in dollars?
4. How much LMI applies at each level, if any?
5. What are my stamp duty and buying costs?
6. How much cash is left after settlement?
7. Would the repayments still feel manageable if rates rise?

That sequence is boring, which is exactly why it works. Good buying decisions often feel less cinematic than Instagram would like.

So how much deposit do you actually need?

If you want the least annoying honest answer:

• 5% can work if you qualify for a guarantee or have strong income and a solid buffer.
• 10% is often the best balance between getting in sooner and keeping the loan more manageable.
• 20% is still the cleanest standard path if reaching it will not take forever or wipe out your emergency cash.

So no, you do not always need 20%. But you do need a deposit plan that works in the real world, not just in a spreadsheet that forgot you also need to eat.

Final word

The best deposit is not automatically the biggest one. It is the one that gets you approved, gets you settled, and leaves you financially stable after the excitement wears off and the first council rates notice lands.

For a lot of Australians in 2026, that means aiming beyond the bare minimum, checking whether a guarantee scheme applies, and comparing 5%, 10% and 20% side by side instead of worshipping one number. Run the numbers properly and the answer usually gets much clearer.

Sources checked 5 July 2026: Moneysmart guidance on Lenders Mortgage Insurance, official First Home Buyers guidance on the Australian Government 5% Deposit Scheme and the single parents and legal guardians pathway, and APRA guidance on the 3% serviceability buffer.