A 20 per cent deposit can feel like a moving target when property prices, rent and everyday costs are all competing for your savings. Low deposit home loans can help eligible buyers enter the market sooner, often with as little as 5 or 10 per cent saved. But a smaller upfront contribution does not automatically make a home more affordable. The loan still needs to work comfortably in your real household budget.
For first-home buyers especially, the best decision is rarely about finding the lender with the smallest deposit requirement. It is about understanding the total cost, the repayments you could manage if rates rise, and the conditions attached to the loan.
What are low deposit home loans?
A low deposit home loan is generally a mortgage where you contribute less than 20 per cent of the property’s value. The difference is funded by the lender, giving the loan a higher loan-to-value ratio, or LVR.
For example, on an $800,000 home, a 20 per cent deposit is $160,000. A 10 per cent deposit is $80,000, while a 5 per cent deposit is $40,000. Those lower figures can make buying feel far more achievable, particularly for people paying rent while they save.
Lenders do not assess your deposit in isolation. They will also look closely at income, regular expenses, existing debts, employment stability, credit history and the property itself. A buyer with a 10 per cent deposit, steady income and minimal debt may be in a stronger position than someone with a larger deposit but stretched finances.
The trade-off behind a smaller deposit
Putting down less cash means borrowing more. That increases your monthly repayments and the total interest paid over the life of the loan. It can also mean paying lenders mortgage insurance, commonly called LMI, if your loan is above the lender’s preferred LVR.
LMI protects the lender, not you, if the property needs to be sold and the sale proceeds do not cover the outstanding loan. It is often added to the mortgage, which means you may pay interest on it as well. The cost varies depending on the size of your deposit, loan amount and lender, so it is worth asking for the dollar figure rather than treating it as a vague extra.
A low deposit loan may also come with a slightly higher interest rate or fewer lending options. This is not always the case, but it is a reason to compare the full package: rate, fees, LMI, repayment flexibility and any restrictions on redraw or offset accounts.
The right choice depends on your circumstances. Waiting another two years to reach 20 per cent could save LMI and reduce borrowing, but property prices may rise while you wait. Buying sooner could work well if repayments are comfortable and you plan to hold the property for the longer term. There is no single answer that suits every household.
How much deposit do you really need?
Your deposit is only one part of the cash needed to buy a home. You should also allow for purchase costs, which may include stamp duty, conveyancing or legal fees, building and pest inspections, lender fees and moving costs. Depending on where you buy and whether you qualify for concessions, these costs can add up quickly.
First-home buyer assistance and government guarantee programs can reduce the deposit needed for eligible applicants or help some buyers avoid LMI. Rules, places and income thresholds can change, so check the current criteria before making plans around a scheme. A guarantee can be valuable, but it does not replace the lender’s normal assessment of whether you can afford the repayments.
If you are using savings held in a term deposit, shares or another investment, consider how accessible that money is and whether selling it has tax or timing consequences. A lender will generally want a clear picture of where your deposit came from. Genuine savings built up over time can strengthen an application, although acceptable deposit sources vary between lenders.
Can family support help?
For some buyers, a family guarantee can be an alternative to saving a full 20 per cent deposit. A parent or close family member may use equity in their own property as security for part of the loan. This can reduce or avoid LMI and may help you borrow with a smaller cash deposit.
It is a serious commitment, not simply a favour on paper. If repayments are missed, the guarantor’s property can be at risk. Everyone involved should understand the arrangement, have independent legal advice, and agree on a clear path for reducing and eventually releasing the guarantee.
A gifted deposit may be another option. Lenders commonly want confirmation that it is genuinely a gift rather than an undisclosed loan that adds to your future commitments.
Make the repayment test tougher than the lender’s test
Lenders use servicing calculations to test whether you could continue paying if interest rates increase. Their assessment is essential, but your own test should be more personal.
Start with the repayment amount at the current rate, then see what happens if it rises by 1, 2 or even 3 percentage points. Include council rates, strata levies if applicable, home insurance, utilities, maintenance and any changes a move will bring, such as longer commuting costs or childcare. A house can be approved by a lender and still leave too little room for the life you want to live.
Be honest about regular spending. Groceries, subscriptions, school costs, car finance, holidays and medical expenses are not minor details when a mortgage is your largest monthly commitment. A budget that includes a buffer for repairs and unexpected bills is more useful than one built around a best-case month.
If your income is variable, such as commission, casual work, contracting or self-employment, allow for quieter periods. Some lenders take a more flexible view of these income types than others, which is where tailored advice can make a meaningful difference.
Steps to strengthen a low deposit application
Before applying, focus on the parts of your finances you can control. Pay down high-interest consumer debt where possible, avoid taking on new car finance or buy-now-pay-later commitments, and keep your savings pattern consistent. Even modest regular savings demonstrate that you can manage a future mortgage repayment.
Check your credit report for errors and make sure bills and loan repayments are paid on time. If you have recently changed jobs, reduced hours or started a business, gather documents that clearly show your income and employment position. Being prepared can prevent unnecessary delays and avoids surprises after you have found a property you love.
It also helps to seek pre-approval before making offers. Pre-approval is not a final guarantee of finance – the lender will still need to assess the property and confirm your circumstances – but it gives you a more realistic price range and can help you act with confidence.
Compare more than the advertised rate
A low advertised rate can be appealing, but it should not be the only factor driving your decision. Ask whether the loan allows extra repayments without penalties, whether there is an offset account, what fees apply, and how fixed and variable rate options would affect you.
A fixed rate can make budgeting easier for a set period, while a variable rate may offer more flexibility. Some buyers split their loan between both. The suitable structure depends on your cash flow, appetite for rate changes and plans for the property. If you expect to sell or refinance soon, break costs on a fixed loan deserve particular attention.
Independent mortgage advice can save time here. Rather than trying to interpret every product feature alone, you can compare options against your deposit, income, goals and preferred level of flexibility.
Buying with a low deposit is not about rushing into a mortgage because you are tired of renting. It is about using the opportunity carefully, with a clear view of the costs and a repayment plan that still leaves room to breathe. If the numbers feel tight now, a little more preparation may give you far more confidence when the right home comes along.
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