Low-Deposit Home Loans in Australia: How They Work

How do low-deposit home loans work in Australia?

The information on this website is general in nature and does not take into account your objectives, financial situation, or needs. Consider seeking personal advice from a licensed adviser before acting on any information.

Low-deposit home loans may help some Australian borrowers buy property with less than a 20 per cent deposit, but they can involve higher borrowing, lenders mortgage insurance, stricter assessment and additional risks. This guide explains LVR, LMI, guarantors, government guarantees and key checks before applying.

Low-deposit home loans in Australia are designed for borrowers who want to buy a property but have not saved a full 20 per cent deposit. They can be especially relevant for first home buyers, but they are not a shortcut around lender assessment. You still need to show that you can afford the loan, meet the lender’s criteria and cover the upfront costs of buying.

This guide explains how low-deposit loans work, what a 5 percent deposit home loan usually means, how lenders mortgage insurance and LVR affect your application, and what alternatives such as guarantor home loans and government guarantee schemes may involve.

What is a low-deposit home loan?

A low-deposit home loan is generally a home loan where the borrower contributes less than 20 per cent of the property’s purchase price as a deposit. For example, if you had a 10 per cent deposit, you may need to borrow the remaining 90 per cent of the property value, plus potentially some costs depending on the lender and loan structure.

In Australia, a 20 per cent deposit is often treated as a common benchmark because borrowing above 80 per cent of the property value can increase risk for the lender. When your deposit is below that level, the lender may require lenders mortgage insurance, apply tighter credit assessment, charge different rates or limit the loan options available to you.

Low-deposit home loans can make it possible to enter the property market sooner, but borrowing more also means larger repayments, more interest over time and less equity at the start of the loan.

How LVR works with a low deposit

LVR stands for loan-to-value ratio. It compares the amount you borrow with the value of the property used as security for the loan.

For example, if a property is valued at $600,000 and you borrow $540,000, the LVR is 90 per cent. Your deposit, before allowing for upfront costs, is effectively 10 per cent.

LVR matters because it helps lenders assess the risk of the loan. A higher LVR generally means the borrower has less equity in the property. That can affect:

whether a lender will consider your application;
whether lenders mortgage insurance applies;
which interest rates or loan features may be available;
how much evidence the lender wants about your income, expenses and savings history;
whether a guarantor, government guarantee or other support structure is needed.

Lenders also rely on their own property valuation, which may not always match the price you agreed to pay. If the valuation comes in lower than the purchase price, your effective LVR may be higher than expected, and you may need a larger contribution or a revised loan structure.

What does a 5 percent deposit home loan mean?

A 5 percent deposit home loan usually means the borrower is contributing around 5 per cent of the property price and borrowing close to 95 per cent, before considering transaction costs and any lenders mortgage insurance. This is a high-LVR loan and is not available to every borrower or for every property.

Some borrowers may hear “5 per cent deposit” and assume they only need that amount in cash. In practice, you may also need to budget for costs such as conveyancing, building and pest inspections, loan fees, moving expenses, government charges and stamp duty where applicable. First home buyer concessions or grants may reduce some costs for eligible buyers, but availability varies by state or territory and by personal circumstances.

A 5 per cent deposit can also mean a narrower choice of lenders and products. Some lenders may require very strong income stability, a clean credit history, evidence of genuine savings or limits on property type and location. Approval is never automatic and depends on the lender’s assessment criteria.

Lenders mortgage insurance and low-deposit loans

Lenders mortgage insurance, commonly called LMI, is a type of insurance that protects the lender if a borrower defaults and the property sale does not cover the outstanding loan. Although it may help a borrower access a loan with a smaller deposit, it protects the lender, not the borrower.

LMI is commonly associated with loans above 80 per cent LVR, although lender rules can vary. The cost depends on factors such as the loan amount, LVR, borrower profile and insurer or lender policy. It may be payable upfront or, in some cases, added to the loan. If it is added to the loan, interest may be charged on that amount over time.

Because LMI can be a significant cost, it is worth understanding before you apply. For a more detailed explanation of how it works, see our guide to mortgage insurance for Australian homebuyers.

Common low-deposit pathways in Australia

There is no single type of low-deposit home loan. Borrowers may access low-deposit finance through different structures, depending on eligibility, lender policy and the property being purchased.

Option	How it may work	Key considerations
Standard low-deposit loan with LMI	You borrow above 80 per cent LVR and pay LMI if required by the lender.	Can increase upfront or long-term costs. Approval depends on serviceability, credit history, deposit source and property suitability.
5 percent deposit home loan	You contribute about 5 per cent of the purchase price and borrow most of the property value.	Usually a high-LVR structure. You may need strong income, clean credit conduct and enough funds for other purchase costs.
Guarantor home loan	An eligible family member, often a parent, provides a limited guarantee secured against their property.	May reduce or avoid LMI in some cases, but creates serious obligations and risks for the guarantor.
Government guarantee scheme	An eligible borrower may receive a government-backed guarantee for part of the loan, subject to scheme rules and lender participation.	Eligibility, property caps, places and rules can change. The borrower still needs to meet lender assessment.

Guarantor home loans: useful but not risk-free

A guarantor home loan may allow a borrower to buy with a smaller deposit by having a guarantor support part of the loan. In Australia, this is often a family guarantee, where a parent or close family member uses equity in their own property to provide additional security.

A guarantor structure may help reduce the lender’s risk and may reduce the need for LMI in some situations. However, it is a major financial commitment for the guarantor. If the borrower cannot meet repayments and the property sale does not clear the debt, the guarantor may be liable for the guaranteed portion. This could affect the guarantor’s own borrowing capacity, retirement plans or ability to sell or refinance their property.

Borrowers and guarantors should make sure they understand the guarantee amount, release conditions, legal documents and worst-case outcomes. Independent legal and financial advice may be important before entering into a guarantee arrangement.

Home Guarantee Scheme and other government support

The Home Guarantee Scheme is one pathway that may help eligible Australian buyers purchase with a smaller deposit without paying LMI. The government does not give the borrower cash for the deposit under a guarantee. Instead, it provides a guarantee to the participating lender for part of the loan, subject to the rules of the scheme.

Eligibility may depend on factors such as buyer status, income, property type, property price caps, intended occupancy and available scheme places. Different streams may apply to different borrower groups. Rules, caps and places can change, so borrowers should check current requirements before relying on any scheme in their planning.

Home Loan Repayment Calculator

Explore potential mortgage repayment scenarios with our Home Loan Repayment Calculator. Adjust loan amounts, interest rates and repayment terms, and view detailed amortisation charts to see how different scenarios may affect your repayments, interest costs and outstanding loan balance over time.

Home Loan Repayment Calculator

For a broader overview of grants, concessions and low-deposit schemes, see our guide to first home buyer grants, concessions and schemes in Australia.

What lenders assess before approving a low-deposit loan

Having a deposit is only one part of a home loan application. Lenders also assess whether you can repay the loan now and if circumstances change. With a low-deposit loan, this assessment can be particularly important because the loan amount is larger relative to the property value.

Lenders may consider:

Income: your income amount, stability, employment type and any overtime, bonuses or casual income that may or may not be accepted in full.
Expenses: your living costs, dependants, discretionary spending and regular commitments.
Existing debts: credit cards, personal loans, car loans, buy now pay later facilities and other liabilities.
Credit history: repayment conduct, defaults, enquiries and overall credit profile.
Deposit source: whether your deposit comes from genuine savings, a gift, sale proceeds, inheritance or another source.
Property security: the type, location, condition and valuation of the property.
Repayment buffer: whether you could still afford repayments if interest rates or expenses increased.

You can read more about lender assessment in our guide to home loan eligibility and borrowing capacity in Australia.

Benefits of a low-deposit home loan

A low-deposit home loan may suit some borrowers, depending on their circumstances and objectives. Possible benefits include:

Entering the market sooner: Some borrowers may avoid waiting years to reach a 20 per cent deposit, although this depends on property prices, savings capacity and borrowing power.
Keeping savings available for costs: A smaller deposit may help preserve some cash for moving, repairs or emergency expenses, if the lender allows it and the borrower can still meet approval requirements.
Using eligible support: Some first home buyers may be able to combine a low deposit with government assistance, subject to eligibility.
Buying before circumstances change: For some borrowers, buying sooner may align with family, employment or location needs.

These benefits are not guaranteed. A low-deposit loan only makes sense if the repayments, costs and risks are manageable for your situation.

Risks and trade-offs to understand

Low-deposit borrowing can be helpful, but it comes with trade-offs that should be considered carefully.

Higher repayments

Borrowing more usually means larger repayments. Even if the interest rate is competitive, a larger loan balance can put more pressure on your household budget.

More interest over the life of the loan

The more you borrow, the more interest you may pay over time, assuming all other factors are equal. A longer loan term can reduce monthly repayments but may increase total interest paid.

LMI or guarantee costs

If LMI applies, it can add to your upfront costs or loan balance. If a guarantor is involved, the cost may be less obvious but the risk to the guarantor is significant.

Less equity at the start

With a small deposit, you begin with limited equity. If property values fall, you may have little flexibility to refinance, sell or access better loan options.

Stricter lender conditions

Some lenders apply tighter rules to high-LVR loans. A property that is acceptable at a lower LVR may not be acceptable for a low-deposit application.

How to prepare before applying

Before applying for a low-deposit home loan, it can help to work through the following steps.

Estimate your full purchase budget. Include the deposit, stamp duty if applicable, legal costs, inspections, loan fees, moving costs and a cash buffer.
Check your borrowing capacity. Use realistic figures for income, expenses and debts, and remember that calculator results are estimates only.
Review your credit file. Correct any errors and avoid taking on unnecessary new debt before applying.
Document your deposit source. Keep records showing savings history, gifts, grants or other funds you intend to use.
Compare loan structures. Consider whether a standard low-deposit loan, guarantor option or government guarantee pathway may be relevant.
Understand the repayment impact. Test repayments at higher interest rates to see whether your budget has room for change.
Ask about property restrictions. Some lenders are more cautious with small apartments, certain postcodes, regional properties, unusual titles or properties in poor condition.

Questions to ask a lender or mortgage broker

If you are considering a low-deposit home loan, useful questions may include:

What is the maximum LVR available for my situation?
Will LMI apply, and how would it be paid?
Would I qualify for any government guarantee pathway, and what rules apply?
What deposit source will the lender accept?
Are there property types or locations that may not be acceptable at this LVR?
How would a guarantor structure work, and when could the guarantor be released?
What happens if the property valuation is lower than the purchase price?
How much of my savings should I keep aside after settlement?
Could a higher deposit materially change my loan options or costs?

A mortgage broker may be able to explain lender differences and help you understand which options are available based on your circumstances. This does not guarantee approval, and it is still important to read loan documents carefully and consider whether the commitment is affordable.

When waiting and saving more may be sensible

A low-deposit loan is not always the right next step. Waiting may be worth considering if your employment is uncertain, your budget has little room for higher repayments, your credit history needs improvement or your savings would be fully exhausted at settlement.

Saving a larger deposit may reduce your LVR, increase your lender options, reduce or avoid LMI, and give you more flexibility after settlement. The trade-off is that property prices, interest rates and personal circumstances can change while you wait. The better choice depends on your finances, goals and risk tolerance.

Final Thoughts

Low-deposit home loans in Australia can help some borrowers buy with less than a 20 per cent deposit, but they involve careful assessment and important trade-offs. LVR, lenders mortgage insurance, deposit source, borrowing capacity, property valuation and eligibility rules can all affect your options.

Before applying, make sure you understand the full cost of buying, not just the deposit. Compare the impact of LMI, guarantor support and government guarantee pathways, and allow for changes in rates, expenses and property values. A low deposit may open the door to buying sooner, but the loan still needs to be affordable and suitable for your circumstances.

Published: Monday, 9th Nov 2026
Author: Paige Estritori