That first property inspection can make the question feel very real: how much can I borrow without putting too much pressure on my day-to-day life? The answer is not simply a multiple of your salary. Australian lenders look at the full picture – your income, existing commitments, living costs, deposit, credit history and the type of property you want to buy.
A borrowing estimate is a useful starting point, but it is not a promise of approval and it should not be the only number guiding your property search. The right loan amount is one you can manage comfortably through rate changes, family plans, career shifts and the ordinary surprises life brings.
How much can I borrow in Australia?
Your borrowing capacity is the amount a lender may be prepared to lend based on its assessment of your ability to repay the loan. Each lender uses its own policy and calculator, which is why two banks can produce noticeably different results from the same application.
As a broad guide, lenders assess your income against your expenses and debts, then test whether you could still afford repayments if interest rates were higher than they are today. This is known as a serviceability buffer. It protects both you and the lender from the risk of repayments becoming unmanageable if rates rise.
For example, a couple with stable salaries, limited debts and a healthy deposit may have a stronger borrowing position than a household with the same income but large credit card limits, car finance and high childcare costs. Neither situation is automatically good or bad. It simply means the loan needs to be structured around the household’s real circumstances.
Your maximum borrowing capacity is also different from your purchase budget. If you have a $100,000 deposit and can borrow $600,000, your potential purchase price may be around $700,000 before allowing for stamp duty, conveyancing, lender fees and any other upfront costs. In Victoria, those costs can materially affect how much of your savings is available for the deposit itself.
What lenders look at before approving a loan
Lenders are interested in consistency as much as income. They want to understand where your money comes from, what you need to spend to live, and whether the proposed repayments fit within a sensible budget.
Income and employment
Salary and wages are generally the most straightforward forms of income to verify. Lenders may also consider commissions, bonuses, overtime, allowances, rental income and government payments, though they may use only part of these amounts depending on how reliable they are.
If you are self-employed, you can absolutely qualify for a home loan, but documentation matters. Most lenders will review tax returns, notices of assessment and business financials to understand sustainable income. A strong business does not always fit a standard bank checklist, so selecting a lender that understands your position can make a meaningful difference.
Your everyday spending
Lenders review declared living expenses and often compare them with household expenditure benchmarks. This includes groceries, utilities, transport, insurance, school costs, subscriptions, private health cover and childcare.
There is no benefit in understating your expenses just to achieve a higher figure. A loan that works only on paper can become stressful quickly. Being honest about your lifestyle helps create a repayment plan that leaves room for saving, family life and unexpected costs.
Existing debts and credit limits
Your current debts reduce borrowing capacity because they create ongoing repayment obligations. This can include car loans, personal loans, HELP debt, buy now pay later accounts and credit cards.
A detail many borrowers miss is that lenders often assess a credit card based on its limit, not just the balance you currently owe. A card with a $15,000 limit can affect your application even if you pay it off every month. Reducing or closing unused limits before applying may strengthen your position, provided it suits your wider financial needs.
Deposit and loan-to-value ratio
Your deposit affects the loan-to-value ratio, or LVR. This is the percentage of the property value that you are borrowing. A 20 per cent deposit generally means an 80 per cent LVR.
Borrowing with a smaller deposit can still be possible, particularly for eligible first home buyers, but you may need to pay lenders mortgage insurance or meet tighter lending requirements. Using every dollar in your savings account for a larger deposit is not always wise, either. Keeping a modest emergency buffer can be just as valuable as reducing the loan by a small amount.
Credit history and the property itself
Your credit report gives lenders a record of how you have handled credit. Late payments, defaults or frequent credit applications can affect lender choices, but they do not always rule out a loan. The right approach depends on what appears on the report, how long ago it occurred and whether the issue has been resolved.
The property also matters. A lender will arrange a valuation and may apply different rules to apartments, rural properties, small units or homes in particular postcodes. If the valuation comes in below the contract price, you may need a larger deposit or a revised strategy.
Borrowing power versus comfortable repayments
It is tempting to treat the largest available loan as the goal, especially in a competitive property market. But borrowing to your absolute limit can leave little room for rate increases, parental leave, reduced work hours, repairs or an investment opportunity later on.
Before setting a budget, consider what repayments would feel like at a higher interest rate, not only the rate advertised today. Look at your own spending over the past few months and ask whether you could still save after meeting the proposed repayment. A home should support your future, not absorb every spare dollar.
For investors, the calculation requires another layer of care. Expected rental income can help serviceability, but lenders usually discount it rather than counting 100 per cent. You also need to allow for vacancy periods, property management fees, maintenance, land tax and higher interest rates. A well-considered investment loan should work beyond the most optimistic rental estimate.
Practical ways to improve your borrowing capacity
If your initial figure is lower than expected, that does not mean your goal is out of reach. Often, a few deliberate changes can improve your application over time.
Start by paying down high-interest debt and reviewing credit card limits you no longer need. Build a clear savings record, as regular savings can demonstrate good financial management. Avoid applying for several forms of credit in a short period, and make every existing repayment on time.
You may also consider whether a larger deposit, a more affordable purchase price, a longer loan term or buying with a partner changes the picture. Each option has trade-offs. A longer term can lower required repayments but may increase the total interest paid. Buying jointly can improve borrowing power, but it also means having a clear agreement about ownership, contributions and future plans.
Government support may assist eligible buyers with entering the market sooner, but schemes have conditions and places can be limited. It is worth assessing these options alongside the loan itself rather than basing a purchase decision on a scheme alone.
Why lender choice can change the answer
There is no single universal borrowing capacity figure. One lender may be more favourable for a PAYG applicant with overtime income, while another may better suit a self-employed borrower, investor or family with dependants. Interest rate is important, but policy, fees, repayment flexibility and the way income is assessed can be equally important.
This is where broker-led guidance can save time and prevent unnecessary applications. At Lumbini Finance, we look beyond a quick calculator result to assess your goals, cash flow and lending options across a broad panel of lenders. The aim is not simply to chase the biggest loan, but to help you secure a structure that fits the property you want and the life you are building.
Before you fall in love with a home, arrange a clear borrowing assessment and consider pre-approval. It can give you a more confident price range, reveal issues early and help you negotiate with greater certainty. The most useful answer to “how much can I borrow?” is the one that leaves you able to move forward with confidence after settlement, too.