A first home buyer loan application is assessed on one simple thing: can the borrower afford the loan, and will they repay it on time. In Australia, lenders usually look at income, expenses, deposit, credit history, existing debts, and the property itself.
Because each lender applies policy a little differently, results can vary even when two applicants look similar on paper.
What are lenders really trying to confirm with a first home buyer loan application?
They are trying to confirm serviceability, stability, and acceptable risk. In practice, that means verifying income is reliable, expenses are realistic, and the applicant has a track record of managing money.
They also check the property meets their security requirements, since the home is usually the main collateral for the loan.
How do lenders check income for a first home buyer loan application?
They verify that income is genuine, ongoing, and consistent with the role or business. Most Australian lenders ask for recent payslips and may confirm details using bank statements and employer checks.
For casual, contract, or self-employed borrowers, they often want longer evidence, such as tax returns and notices of assessment. They may shade or average variable income like overtime, commission, bonuses, or allowances.
How do lenders assess spending and living expenses?
They compare declared living costs against transaction history and benchmarks such as the Household Expenditure Measure (HEM). If spending is higher than the benchmark, they usually use the higher number.
They look closely at discretionary categories like dining out, subscriptions, travel, and gambling. Even if an applicant plans to cut back, the lender generally assesses what they can see today, not what they hope will happen later.
How do lenders calculate serviceability and borrowing power?
They test whether repayments remain affordable after applying an assessment rate that is higher than the actual interest rate. This “buffer” is designed to see how the loan holds up if rates rise.
They also include other costs in the calculation, such as existing debts, dependants, and ongoing commitments. For many buyers, a first home buyer loan application succeeds or fails at this step.

How do existing debts affect approval?
They reduce borrowing power because repayments are counted as ongoing commitments. Credit cards are a common issue because lenders often assess repayments based on the credit limit, not the balance.
Personal loans, car finance, HECS-HELP, and buy now pay later accounts can also lower serviceability. If they can reduce limits or clear debts before lodging a first home buyer loan application, it can meaningfully improve the numbers.
How important is the deposit size and genuine savings?
Deposit size matters because it affects loan-to-value ratio (LVR) and risk. A larger deposit can improve pricing and reduce the need for Lenders Mortgage Insurance (LMI), depending on the structure.
Many lenders also want “genuine savings”, meaning a pattern of saving over time. Gifts can be accepted by some lenders, but they may want a statutory declaration and evidence the gift is non-repayable as part of a first home buyer loan application.
How do lenders assess credit history in Australia?
They review the applicant’s credit report and internal repayment history, if any. Late payments, defaults, and too many recent enquiries can raise concerns.
They also look for stability and responsible use of credit. Even when the credit score looks fine, patterns like repeated missed payments or heavy reliance on short-term debt can weaken a first home buyer loan application.
What role do employment type and job stability play?
They prefer stable employment and consistent income. Full-time permanent roles are generally simplest to assess, while casual, labour-hire, or probation periods may trigger extra requirements.
For applicants changing jobs, lenders often focus on whether they remained in the same industry and whether income is consistent. If income is new or irregular, they may need more evidence before approving a first home buyer loan application.
How do lenders assess the property being purchased?
They order a valuation to confirm the property value supports the loan amount. If the valuation comes in lower than the purchase price, the buyer may need a larger deposit or renegotiate.
They also check the property type meets policy. Some lenders can be cautious with small apartments, student accommodation, display homes, rural properties, or unique construction types, because resale can be harder if they ever need to recover funds from a first home buyer loan application.
How do government schemes affect a first home buyer loan application?
They still apply normal servicing and credit rules, but schemes can change the deposit and LVR outcome. The First Home Guarantee, for example, may let eligible buyers purchase with a smaller deposit without paying LMI, subject to places and criteria.
State-based stamp duty concessions or grants can help with upfront costs, but they do not automatically increase borrowing power. Lenders typically want clear evidence of eligibility and timing when assessing a first home buyer loan application.
What documents do lenders usually request?
They usually request identity documents, income evidence, and bank statements. For PAYG borrowers, that often includes payslips and group certificates or an income statement; for self-employed borrowers, it often includes tax returns and notices of assessment.
They may also request rental ledgers, rates notices, existing loan statements, and statements for credit cards and personal loans. Clean, complete paperwork can speed up a first home buyer loan application.

What can delay approval or cause an application to be declined?
Most delays come from missing documents, unclear bank statement conduct, or last-minute changes like new debts or reduced hours. Large unexplained cash deposits, frequent overdrawing, or recurring gambling transactions can also cause issues.
Declines often relate to serviceability shortfalls, poor credit conduct, unstable income, or an unacceptable property. Fixing these issues before submitting a first home buyer loan application is usually far easier than trying to solve them mid-assessment.
How can first home buyers strengthen their application before applying?
They can improve outcomes by reducing debts, lowering credit card limits, and keeping spending consistent and reasonable. They can also build a larger deposit, demonstrate genuine savings, and avoid changing jobs right before applying.
They should keep bank statements tidy, document any one-off transactions, and ensure all liabilities are disclosed accurately. A well-prepared first home buyer loan application is not just about income, it is about the overall story the documents tell.
Should they use a mortgage broker or go direct to a bank?
A broker can compare multiple lenders’ policies and match the scenario to a lender more likely to approve. That can be useful when income is variable, the deposit is tight, or the property is non-standard.
Going direct may suit buyers with a straightforward profile who already know the product they want. Either way, they should confirm how the lender will assess their first home buyer loan application before they sign a contract.
Related : First Home Buyer Home Loan Costs Beyond the Deposit Itself
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