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

Australians love saying you need a 20% deposit to buy a home. It is tidy advice, sounds responsible, and makes parents feel useful at barbecues. It is also only half true.

In 2026, plenty of buyers still purchase with 5% or 10% down. The catch is that the deposit is only one part of the upfront cost. You also need to think about LMI, stamp duty, legal fees, inspections, and whether a smaller deposit leaves you too stretched once the loan actually starts biting.

If you want the short version, here it is for standard home loan paths:

• 5% is possible for many owner occupiers, but it usually means a bigger loan and often LMI.
• 10% is a more comfortable middle ground, though LMI may still apply.
• 20% is still the cleanest line because many standard loans at 80% LVR or lower avoid LMI.

There are exceptions. In 2026, some government-supported pathways can go lower than 5%, including certain 2% deposit options for eligible buyers. This guide is mainly about the mainstream 5%, 10% and 20% choices most buyers compare first.

First, separate deposit from total cash needed

This is where buyers get ambushed. A deposit is the portion of the purchase price you contribute. It is not the same as the total money you need in the bank on purchase day.

For a $700,000 property, the deposit itself looks like this:

• 5% deposit = $35,000
• 10% deposit = $70,000
• 20% deposit = $140,000

But your real upfront cash may also include:

• stamp duty, unless you qualify for an exemption or concession
• conveyancing or solicitor fees
• building and pest inspections
• bank application or settlement costs
• moving costs and a basic emergency buffer so you are not eating Mi Goreng in an empty lounge room for three weeks

Before you fall in love with a property, run the full numbers through a borrowing capacity calculator and a stamp duty calculator. The gap between "I have the deposit" and "I can actually settle" is where dreams go to die.

What 5% really means

A 5% deposit means you are borrowing up to 95% of the property value. That is high leverage, which is fancy finance language for "the bank is carrying most of this party".

A 5% deposit can make sense if:

• you are a first home buyer and want to enter the market sooner
• you have strong income but limited savings history
• rent in your area is already brutal and waiting another two years feels worse than paying LMI
• you may qualify for a government guarantee that lets you avoid LMI

The downside is simple. Your loan is larger, your repayments are higher, and many borrowers above 80% loan to value ratio will be charged Lenders Mortgage Insurance. LMI can run into the thousands or tens of thousands depending on the loan size, deposit, and lender policy. It is often added to the loan, which means you may pay interest on it for years. ASIC's Moneysmart definition of LMI is a good plain-English reference if you want the official version.

If you want a reality check, use the LMI calculator. It is much better than guessing and then crying into Excel later.

What 10% gets you

A 10% deposit is often the sweet spot for buyers who are close, but not 20%-close. You are still likely to be above 80% LVR, so LMI may still apply, but the premium is usually lower than it would be at 95% LVR.

The 10% path can be attractive because:

• you need less cash than a 20% deposit
• you may reduce LMI compared with borrowing at 95%
• your repayments are lower than the 5% route
• you may keep a better emergency buffer instead of emptying every account to reach 20%

This is the option many buyers overlook. They compare 5% with 20% like those are the only two settings on the machine. They are not.

Why 20% is still the magic number

The reason 20% gets repeated so often is not because it is morally superior. It is because for many standard home loans, borrowing 80% or less means no LMI.

That can mean:

• lower upfront cost overall because you avoid LMI
• more lender choice
• a better equity buffer if prices wobble
• smaller repayments because your loan is smaller from day one

The problem, obviously, is that 20% is a giant lump of money. On higher-priced properties, waiting for a full 20% can take years. During that time, prices, rent, or both may keep moving. So the right question is not "is 20% best?" It usually is. The right question is "is waiting for 20% better than buying sooner in my situation?"

Do first home buyers still need 20%?

Not necessarily. In 2026, some buyers may be eligible for support under the Australian Government's low-deposit guarantee schemes, including the First Home Guarantee. If eligible, you may be able to buy with a 5% deposit without paying LMI, because the government guarantees part of the loan.

Important catch, because there is always a catch:

• there are eligibility rules
• property price caps apply by region
• you still need to meet participating lender credit and serviceability rules

Also, not every low-deposit pathway is strictly a first-home-buyer path. In 2026 there are federal options that can go lower than 5% for eligible borrowers, including 2% deposit pathways in specific schemes such as the Family Home Guarantee for eligible single parents and legal guardians, and Help to Buy for eligible shared-equity applicants. So if you are close, check the current government rules rather than assuming 20% is your only respectable option.

There are also family guarantee arrangements and profession-based LMI waiver offers with some lenders. Those are real options, but they are lender-specific and should be checked carefully rather than repeated by your cousin who "heard about it from a guy at work".

How much cash should you really aim for?

For many buyers, a better target is not just a deposit percentage, but a cash position:

• enough for the deposit
• enough for buying costs
• enough left over for a small emergency fund after settlement

As a rough guide:

• 5% buyers often need more than 5% cash once fees and duties are included
• 10% buyers are usually in a safer position if they still keep some buffer after settlement
• 20% buyers should still avoid throwing every last dollar into the deal just to dodge LMI

A smaller deposit with a cash buffer can be healthier than a heroic 20% deposit followed by immediate financial panic every time the car makes a weird noise.

When buying with less than 20% makes sense

Buying sooner can be rational if:

• you comfortably service the loan at current rates and a lender stress test
• your rent is high relative to the property you want
• you qualify for stamp duty relief or a guarantee scheme
• waiting for 20% would take a long time and materially change your plans

Many lenders assess serviceability using a buffer above your actual rate. APRA's long-standing benchmark has been a 3 percentage point serviceability buffer, though lender policy and your actual assessment can still vary. So being "approved" is not the same as being comfortable. If your budget already looks ugly before council rates, insurance and repairs, that is your sign to slow down.

If you want the policy backdrop, APRA has a published note on banks' loan serviceability expectations.

When waiting is smarter

Holding off may be the better move if:

• you would have almost no cash left after settlement
• your income is variable or probationary
• your borrowing power is only just enough
• you are relying on future pay rises that do not exist yet

There is nothing noble about buying too early and becoming house-poor. Owning a place is great. Owning a place and being terrified of your own electricity bill is less great.

The practical answer

So, how much deposit do you actually need in 2026?

The minimum practical answer is usually 5% plus buying costs. The more comfortable answer is often 10% plus buying costs and a buffer. The cleanest answer remains 20% if you can get there without wrecking your cash position.

If you are choosing between these paths, do not compare deposit percentages in isolation. Compare the full cash needed, the monthly repayment, the LMI impact, and how much breathing room you will have after settlement.