Income and Employment: The Dos and Don'ts of Home Loans

Your income and employment situation shapes every part of your home loan application.

Lenders across Australia assess income differently depending on whether you receive a salary, run your own business, work casually, or earn commission. Under the National Consumer Credit Protection Act 2009, lenders must complete a positive serviceability assessment that confirms you can meet repayments without substantial hardship. In Carnegie, where property values reflect the suburb's proximity to schools, transport, and Koornang Road's retail precinct, understanding how your income is assessed before you apply can save months of delays.

How Lenders Assess PAYG Income

Lenders must assess new borrowers' capacity to service a home loan at an interest rate that is at least 3.0 percentage points above the loan product rate. For someone earning $95,000 per year in a permanent full-time role, lenders will calculate repayments as though the variable rate were 3% higher than the advertised rate. This buffer has been in place since late 2021 and applies to all authorised deposit-taking institutions.

Payslips from the past three months and a letter from your employer confirming your role, income, and employment start date are typically required. If you've been in your current role for less than six months, some lenders will still assess your application provided you can show continuous employment in the same industry. Others require at least six months in the current position. Consider a buyer who moved from a marketing role in the city to a similar role closer to Carnegie three months before applying. Some lenders would proceed with the application based on industry continuity, while others would wait until the six-month mark.

Self-Employed Income: What Lenders Want to See

Self-employed borrowers are assessed on their net profit after business expenses, not their revenue. Lenders typically require two full years of financial statements and tax returns, including the ATO Notice of Assessment for each year. If you've been self-employed for 12 to 24 months, a smaller number of lenders will consider your application using low doc loan structures, though these often carry a higher interest rate.

In our experience, self-employed applicants in Carnegie who operate consulting businesses, trades, or professional services often underestimate how business expenses reduce their assessed income. If your taxable income shows $70,000 after claiming vehicle depreciation, home office costs, and other deductions, that $70,000 figure is what lenders will use, not your ABN turnover. The structure of your business also matters. Sole traders are assessed differently to company directors who receive a combination of salary and dividends.

Lenders also assess whether your business income is stable or growing. A sole trader showing $80,000 in year one and $82,000 in year two is generally viewed more favourably than someone showing $95,000 followed by $70,000, even if the latter figure is still sufficient.

Casual and Contract Employment: Proving Consistency

Casual and contract workers can access home loans but need to demonstrate consistent income over time. Most lenders require at least 12 months of payslips to calculate an average income, though some will accept six months if the employment pattern is regular and the employer confirms ongoing availability of shifts or contracts.

As an example, someone working casual shifts in healthcare and earning between $1,800 and $2,400 per fortnight over the past year would have their income averaged across that period. Lenders will often apply a reduction to account for the lack of leave entitlements. If your average fortnightly pay is $2,100, the assessed figure for serviceability might be closer to $1,900. This reduction varies by lender and employment type.

Shift loadings, overtime, and allowances can be included in your assessed income if they appear consistently on payslips for at least three to six months. One-off bonuses or irregular overtime are typically excluded.

Commission, Bonuses, and Variable Income

Commission and bonus income can be included in your home loan application, but lenders will want to see that income documented over at least 12 months. The assessment method varies. Some lenders will average commission income over two years of tax returns. Others will use your most recent year only if commission has increased.

For a sales professional living near Carnegie station and earning a $75,000 base salary plus $30,000 in annual commission, lenders will assess total income at $105,000, provided that commission level has been consistent or growing. If commission dropped from $40,000 to $30,000 between the two most recent financial years, some lenders will use the lower figure or exclude commission altogether.

Rental income from an investment property can also be included, though most lenders will only assess 80% of the gross rent to account for vacancies and maintenance. If you receive $500 per week in rent, lenders will typically assess $400 per week as income.

The Role of Employment History and Job Changes

Changing jobs shortly before or during a home loan application doesn't automatically disqualify you, but timing matters. Moving from one permanent role to another in the same field is generally viewed as low risk. Moving from permanent employment to casual work, starting a new business, or shifting into a different industry will usually require you to wait until you've established a track record in the new role.

Probation periods are treated differently depending on the lender. Some will proceed with an application if you're still on probation but have a signed contract and a letter from your employer. Others will wait until probation has been completed. If you're planning a job change and considering purchasing in Carnegie or the surrounding area, speaking with a broker before resigning can clarify whether the change will delay your application.

DTI Limits and What They Mean for Borrowers

From 1 February 2026, each authorised deposit-taking institution may lend up to 20 per cent of new owner-occupier loans and up to 20 per cent of new investor loans to borrowers with a total debt-to-income ratio of six times or greater. This means that if your total household income is $120,000 per year, lenders can approve a loan above $720,000 only if you fall within their 20% allocation for high-DTI lending.

For buyers in Carnegie, where median property values sit comfortably within reach for many dual-income households, the DTI limit is not typically a barrier. But if you're borrowing at capacity or combining a home loan with other debts such as personal loans, car loans, or investment property debt, your total borrowing may be constrained by the DTI rule even if you meet the serviceability buffer.

Income Documentation You'll Need to Provide

The documentation required depends on your employment type. PAYG employees typically provide recent payslips, a letter of employment, and tax returns if you've claimed work-related deductions or rental income. Self-employed borrowers provide two years of financials, notices of assessment, and often a letter from an accountant. Casual workers provide 12 months of payslips and a letter confirming ongoing employment.

If you receive child support, Centrelink payments, or other government income, these can sometimes be included depending on the lender and the type of payment. Parental leave payments and Family Tax Benefit are treated inconsistently across lenders. Some will include them in full, others will exclude them entirely.

Gathering this documentation early in the process allows a broker to assess which lenders are likely to approve your application and at what rate. Waiting until after you've found a property and signed a contract adds unnecessary pressure, particularly if the lender comes back requesting additional documents or clarification.

Why Lender Choice Matters for Income Assessment

Not all lenders assess income the same way. One lender may include 100% of your overtime, while another includes only 80%. One may accept six months of casual payslips, while another requires 12 months. One may assess your business income using your most recent year's tax return, while another averages the past two years.

For buyers in Carnegie, many of whom work in professional services, education, healthcare, or run their own businesses, this variation in policy is the reason why working with a broker who understands each lender's appetite makes a tangible difference. Access to home loan options from banks and lenders across Australia means your application is directed to the lender most likely to assess your income favourably, rather than the one with the lowest advertised rate but the strictest policy.

If your income structure is anything other than straightforward PAYG with no overtime, bonuses, or secondary income, the lender you choose will shape your borrowing capacity as much as the income itself.

Pre-Approval and Why It Relies on Accurate Income Assessment

Getting pre-approval before you start attending auctions or making offers gives you certainty around your borrowing capacity and shows sellers that you're a serious buyer. Pre-approval is conditional on the lender verifying your income, employment, and financial position, so the quality of the documentation you provide at this stage directly affects the strength of your approval.

Pre-approvals are typically valid for three to six months, though some lenders will require updated payslips if your employment or income has changed during that period. If you receive a pay rise, change jobs, or take on additional work between pre-approval and settlement, let your broker know immediately. In some cases, this will improve your position. In others, it may require the lender to reassess.

Call one of our team or book an appointment at a time that works for you. We'll review your income and employment situation, identify which lenders are the right fit, and walk you through exactly what's required to move forward with confidence.

Frequently Asked Questions