You can earn good money and still get a lower borrowing number than you expected — sometimes a much lower one. The reason is almost never your income itself. It is which parts of your income a lender decides to count, and how much of each type they are willing to use.
Lenders do not all read income the same way. One lender might count your overtime in full; another might shade it to 80%. One might accept your rental income; another might exclude it entirely until you have two years of history. Whether you're on a hospital roster, running your own business on ABN, picking up agency shifts, or drawing a salary plus a bonus, the lender you end up in front of can move your borrowing number by tens of thousands of dollars without changing a single fact about your situation.
Our team helps buyers across Springfield and Ipswich, QLD work through exactly this, comparing across 60+ lenders. The home loan side of it for self-employed and variable-income buyers is where most of the difference is made.
Here is what you need to know about how lenders treat different income types before you apply.
Key takeaways
- Lenders shade overtime, bonuses and casual income — rarely counting it in full.
- Self-employed borrowers typically need two years of tax returns to qualify.
- Lender choice moves your borrowing number more than the income itself.
Which income types do lenders question or discount?
Most PAYG salary from a permanent role counts in full. Everything around it — overtime, shift penalties, bonuses, commission, rental income, Centrelink — is treated differently, and the differences are significant enough to change whether an application is approved at all.
The income types that cause the most difficulty are not exotic. They are the ones that millions of Australian workers rely on every week: penalty rates for nurses and healthcare workers at Ipswich Hospital or the Mater at Springfield Central, overtime for tradespeople and emergency services workers, casual shifts, and the variable income of anyone running a business. Lenders do not doubt the money exists. They doubt whether it will keep arriving, and their policies reflect that doubt in very different ways.
"The most common thing we see is a buyer who assumed a lender would count everything on their payslip. When the application comes back lower than expected, it's almost always because one income line was shaded or excluded entirely — and a different lender would have read it differently."
Mel Wright · Director and Principal Mortgage Broker, Zest Mortgage Solutions · Chat to Mel →
How do lenders assess variable and irregular income?
The short answer is that lenders average it, shade it, or exclude it — and which of those three they do depends on the lender's own credit policy, which is not published anywhere you can read it.
Overtime and shift penalties
Most lenders accept overtime and shift loadings once you have a consistent history of earning them. The problem is how much they count. Some lenders take overtime at full value once the history is there; others shade it to 80% regardless of how long you have been earning it. That gap in treatment — between a lender that counts 100% and one that counts 80% — is often the difference between a comfortable approval and a stretched one.
Shift penalties for healthcare workers, nurses, and emergency services staff are treated similarly. A registered nurse earning significant penalty rates for night shifts at Ipswich Hospital may find that one lender counts the penalties in full and another treats them as discretionary income and averages them over a longer period. The underlying earnings are identical; the assessed income is not.
Casual and agency income
Casual workers generally need to demonstrate consistency in the same field before lenders will count their income. Most lenders want around 12 months of history, but some require longer and some will accept less where the employment is with a single employer. Agency and bank-shift workers — common among nurses and allied health professionals — are assessed similarly to casual workers, which means the income counts once the history is established but is viewed as less stable than a permanent salary.
What income do self-employed borrowers need to show?
Self-employed borrowers face the most varied treatment of any income type. The standard requirement is two years of personal tax returns, but what lenders do with those returns differs significantly.
What lenders typically look at:
- ›Add-backs: some lenders add depreciation and one-off expenses back to your taxable income to reach a truer income figure; others do not, and the difference can be substantial.
- ›Second-year requirement: most lenders require two full years of returns; a small number accept one year with an accountant's letter confirming the business is ongoing.
- ›Trust distributions: income paid through a trust is accepted by some lenders where the borrower controls the trust and the distribution is consistent, but excluded by others.
- ›Directors fees and dividends: accepted at some lenders over two years, excluded at others, particularly where the amounts vary year to year.
- ›Business debt: existing business loans and credit facilities reduce personal servicing capacity at most lenders, even where the business services them independently.
For a self-employed tradie or small business owner in Redbank Plains or Raceview, which lender assesses the application can move the borrowing number by more than any rate difference will.
Source: APRA.
How do lenders treat bonuses, commission and investment income?
Bonus and commission income is generally accepted, but averaged over one to two years rather than taken at the most recent figure. If your bonus has grown significantly in the last 12 months, a lender averaging over two years will assess a lower number than the current figure suggests — which matters most in the year following a promotion or a strong sales period.
The key income types and how they compare:
- ›Base salary (permanent): 100% accepted · two current payslips · employment letter if probation applies · most consistent treatment
- ›Overtime and penalties: 80% to 100% depending on lender · 6 to 12 months history · some lenders need two years · most variable treatment
- ›Commission and bonus: 80% to 100% of a 1 to 2 year average · two years of history usually needed · recent growth may be underweighted
- ›Rental income: typically 80% of gross rent · holding costs added separately · lease or valuer's estimate needed · some lenders exclude it entirely
- ›Self-employed income: two years of tax returns standard · add-backs vary by lender · trust and dividend income contested · widest variation in outcomes
Rental income from an investment property is worth noting specifically. Most lenders shade it to 80% of the gross rent, then add the property's holding costs as a separate commitment on the other side of the assessment. A property that generates strong rental income may contribute less to your borrowing capacity than you would expect once both sides of that equation are in the calculation.
Source: APRA.
Get in touch Need help with how lenders assess your income? We're a local team who understand how lenders actually assess your situation, not just your rate. We'll compare your options across 60+ lenders to find the right fit.
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What income types are most likely to be excluded entirely?
Some income types are not discounted — they are simply not counted at all by many lenders. Knowing which ones before you apply changes whether you approach a mainstream lender or a specialist one.
Income that is commonly excluded or contested:
- ›Centrelink Family Tax Benefit: accepted by some lenders, excluded by others, and often subject to a child age cut-off. An entitlement letter confirming the payment is usually needed where it is accepted.
- ›Child support payments: accepted at some lenders with a court order or formal assessment, often with a child age cut-off applied. Where the paying party is not on the application, lenders vary significantly on whether they count it at all.
- ›Parental leave pay: most lenders want to see a return-to-work letter and assess the employment income, not the parental leave payment itself. Policy on how long before return the application can proceed varies between lenders.
- ›Buy now, pay later obligations: these appear on bank statements and are treated as commitments by most lenders, reducing capacity even where the balance is small. The commitment is what counts, not the balance.
- ›New job income during probation: many lenders accept a new role in the same field even during probation; others require probation to be completed. Where the income type has changed — from PAYG to self-employed, or from full-time to part-time — lenders are more cautious.
When does lender choice matter more than the income itself?
For most straightforward PAYG borrowers with permanent employment, lender differences are relatively small. The assessment rate, the serviceability buffer and the HEM living-expenses benchmark apply across the board. Where lender choice starts to matter significantly is when any part of your income is variable, conditional, or from a non-standard source.
A government employee at Ipswich City Council on a permanent salary with no other income streams will generally get a consistent answer from most lenders. A nurse at the same income level, with that income made up of a base salary plus shift penalties plus some agency shifts, may get materially different answers depending on which lender reads the application and which policy they apply to the variable components.
For most borrowers with any variable income component, going to a single lender directly is the riskiest strategy, not because lenders are difficult, but because any one lender only applies one policy. Whether it works for your income type is unknown until after you have applied — and a declined application sits on your credit file. Comparing across a panel before applying is where the risk is managed, not eliminated.
How do mortgage brokers help buyers with complex income in Springfield and Ipswich?
The lender choice decides the outcome far more than the rate does for variable-income borrowers. Three policy differences move the number, and they are not visible to a buyer approaching lenders directly.
- ›Add-back treatment: which lenders add depreciation and one-off costs back to self-employed income, and which assess only the taxable figure, is the single biggest swing factor for ABN borrowers.
- ›Overtime shading: whether your overtime is counted at 80% or 100% determines how much of your actual earnings count — and the lenders that take it in full are not always the obvious ones.
- ›Rental income inclusion: whether a property's rental income lifts your borrowing capacity or is netted off by holding costs varies by lender policy, and some exclude it entirely for the first year of ownership.
Matching the income type to the lender that treats it most favourably — before the application goes in — is what moves the number.
"Where someone has a mix of income types — say, a base salary plus overtime plus a small investment property — we'd usually identify the two or three lenders on the panel that treat each component most favourably, then find the one that stacks up best across all three. That conversation often happens before anyone's looked at a property."
Mel Wright · Director and Principal Mortgage Broker, Zest Mortgage Solutions · Chat to Mel →
What approval challenges do buyers with complex income face?
Where borrowers with variable income lose ground:
- ›Applying to the wrong lender first: a decline from a lender that does not handle your income type well sits on your credit file and signals to the next lender that someone already said no. Checking the right lender before applying is not optional — it is what protects the credit file.
- ›HECS debt reducing capacity: for buyers with outstanding HELP debt, the compulsory repayment is treated as an ongoing commitment — it is the repayment, not the balance, that lenders count. At higher income levels the repayment is significant, and some lenders assess it differently to others.
- ›Credit card limits, not balances: most lenders assess credit cards at around 3% of the credit limit per month, regardless of what is owed. A card with a $20,000 limit and a zero balance is still treated as a monthly commitment. Reducing limits before applying is often more useful than paying the balance.
- ›Timing the application to the income history: if your overtime, agency work, or ABN income has only been consistent for eight months, applying now and getting a lower assessed income is worse than waiting the extra period. A cleaner application at the right income level beats an early one at the wrong number.
For buyers in Springfield Lakes, Brassall or Goodna, where medians range from around $720,000 to over $856,000, the difference between a lender that counts your income in full and one that shades it is often the difference between the property being reachable or not.
Source: CoreLogic (via YIP, mid-2026).
Frequently Asked Questions
Do lenders count overtime for nurses and shift workers in Springfield and Ipswich?
Most lenders count overtime and shift penalties once a consistent history is established, typically 6 to 12 months. Some take it in full; others shade it to 80%, so lender choice changes the assessed income meaningfully.
Can I use Centrelink Family Tax Benefit as income for a home loan?
Some lenders accept Family Tax Benefit with a current entitlement letter; others exclude it entirely. Where it is accepted, a child age cut-off often applies, so the income may not count for the full loan term.
How do lenders assess self-employed income in Springfield and Ipswich?
Most lenders require two years of personal tax returns and assess your average taxable income over that period. Add-back treatment — whether depreciation and one-off costs are added back to income — varies significantly between lenders and changes the assessed figure.
Does child support count as income for a home loan?
Child support is accepted by some lenders with a court order or formal assessment, usually with a child age cut-off applied. Many lenders exclude it entirely, so this is a case where lender selection matters more than documentation.
Is a mortgage broker or bank better when my income is variable or complex?
A mortgage broker, every time. A bank applies one policy to your income; a broker can identify which lenders treat your specific income type most favourably before the application goes in, protecting your credit file from an unnecessary decline.
What happens if I apply to a lender that does not count my income type?
A declined application sits on your credit file for five years and signals to the next lender that a previous application was rejected. Identifying the right lender before applying is how variable-income buyers protect themselves from that outcome.
Your Next Steps
Getting your income assessed correctly matters more than most buyers realise — and it matters most when any part of your income is variable, conditional, or self-generated. The lender you end up in front of determines how much of what you earn actually counts, and that decision should happen before the application, not after a decline.
If you're ready to find out which lenders will work best for your income type, contact the Zest Mortgage Solutions team or call (07) 3461 6499. We'll canvas our 60+ lender panel and find the most suitable options for your circumstances.
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External Resources
Zest Mortgage Solutions · Springfield and Ipswich, QLD · Wright Financial Group Pty Ltd (ABN 48 635 310 084), authorised under Australian Credit Licence 517192 · General information only - this article does not constitute financial advice. Please consider your own circumstances and seek professional advice before making any financial decisions.
