Why Lenders Give Different Borrowing Limits in Logan, QLD, What Actually Counts
You've spoken to one lender and got a number. Then someone mentions their broker came back with $80,000 more, same income, same deposit. It's not a rounding error, and it's not luck. Lenders genuinely assess the same application differently, and knowing why is the difference between settling for the first answer and finding the right one.
In Logan, QLD, where house medians range from around $720,000 in Logan Central to well above $880,000 in Browns Plains, the gap between a lender's floor and ceiling on your borrowing capacity can determine whether you're buying in your preferred suburb or compromising on one. Those differences come from policy, not personality.
Our team at Cube Loans works through this comparison every week for buyers across Logan, QLD, running the same applicant's numbers across multiple lenders to find where the assessment works hardest. That's what the home loan side of our work is really about.
Key takeaways
- Same income, different lender policy can shift your limit by tens of thousands.
- Overtime, credit card limits and living expenses are where policies diverge most.
- APRA's DTI cap means lenders near their quota can decline what another would approve.
Why do two lenders give me different borrowing limits for the same income?
Two lenders can assess an identical application and return figures that differ by $60,000 to $100,000, because borrowing capacity is not a calculation with one right answer. It's the output of each lender's own credit policy, applied to your income, debts and expenses. Lenders use different models for what counts, what's shaded and what's excluded, and those policy differences compound across a full application. One lender takes your overtime in full; another counts 80% of it. One uses the minimum credit card repayment; another assumes your limit is drawn. One applies a higher living-expense benchmark. Each choice alone moves the number. All three together can shift it dramatically.
Source: Reserve Bank of Australia; APRA.
How do lenders calculate how much you can borrow?
Every lender starts with the same APRA-required floor: they add a 3% buffer to the actual loan rate to test whether you can still service the debt if rates rise. That buffer is non-negotiable across all authorised deposit-taking institutions. But everything above that floor is lender policy, and policy varies. Living expenses are assessed at the higher of what you declare or the lender's internal benchmark, which is built from the Melbourne Institute's Household Expenditure Measure. You can't declare lower than HEM and have it accepted; the lender substitutes their figure. Your credit card limits are counted as a monthly commitment whether you use them or not, typically at 3% to 3.8% of the limit. A $20,000 limit with a zero balance still reduces your assessed capacity by around $600 to $760 a month at most lenders.
The most common surprise we see is someone who closed a credit card three months ago and has no idea it's still appearing on their file as an open limit. That one card, gone but not yet updated, can sit on a servicing calculation and cost $40,000 in borrowing capacity on the day they apply.
Nevada Matthews · Mortgage Broker and Co-Owner, Cube Loans · Chat to Nevada →
What income types do lenders assess differently?
Base salary from permanent employment is generally accepted in full once you're past probation. The divergence starts the moment your income has a variable component.
How the major variable types are typically treated:
- › Overtime: anywhere from 80% to 100% of a recent average, with most lenders wanting six to twelve months of history. A lender at the generous end of that range can add tens of thousands to your assessed income.
- › Shift penalties and allowances: commonly a portion of the recent average, assessed over six to twelve months of consistent rosters. Some lenders take them at full value; others shade them similarly to overtime.
- › Commission and bonuses: typically averaged over one to two years. A strong recent year counts for less than a consistent two-year track record at most lenders.
- › Casual income: accepted once a consistent history of around twelve months is established, though the definition of consistent varies between lenders.
- › Rental income: counted at around 80% of gross rent at most lenders, with property holding costs added back as a separate commitment. The 80% shading is a near-universal floor; where lenders differ is in how they treat holding costs.
Source: APRA.
What else shifts your borrowing limit between lenders in Logan, QLD?
Beyond income treatment, three structural factors regularly produce different numbers across lenders for the same applicant.
The APRA debt-to-income cap
From February 2026, APRA requires that no more than 20% of an authorised deposit-taking institution's new lending sit at a debt-to-income ratio of six or more. Owner-occupier and investor lending are tracked in separate pools. A lender running close to its investor quota in a given quarter can decline a file it would have approved a month earlier, at the same income and the same purchase price, simply because the quota is near its ceiling. Non-bank lenders are not subject to the same cap, which is one reason the same application can get a yes from a non-bank when a bank says no. This is not a serviceability issue with the borrower. It's a timing and lender-selection issue.
Living expense benchmarks
HEM is built from ABS household expenditure data and updated quarterly. The dollar figures are not published publicly because the Melbourne Institute licenses them to lenders, so you can't look up the exact benchmark that applies to your household. What you can know is that declaring expenses below it doesn't help. Where lenders genuinely differ is in how they define the HEM household categories, and which expenses sit inside HEM versus outside it as separate commitments. Rent and existing mortgage repayments are always outside; council rates, body corporate and home insurance are typically inside.
HECS and existing debt treatment
A HECS-HELP repayment is counted by lenders as an ongoing commitment, and it's the repayment rather than the balance that reduces your capacity. At an income of around $80,000 the compulsory repayment is a meaningful monthly figure. Some lenders treat a nearly-cleared HECS balance more favourably than others, and for a borrower with a small remaining balance the case for paying it out before applying can be worth exploring.
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When does borrowing capacity not make sense to maximise?
There are situations where chasing the highest number a lender will approve is the wrong move. If reaching your limit requires a lender that also carries a materially higher rate, the short-term gain in purchase price can cost more in interest over the life of the loan than the property difference is worth. Similarly, if your assessed capacity sits at the top of what you can actually manage day-to-day, a rate movement that adds $300 to your monthly repayment should factor into the decision before you sign a contract, not after.
The DTI cap creates a specific version of this problem. A lender near its quota may approve an application under time pressure, then tighten conditions before settlement. Building a buffer below your maximum limit, rather than buying at the ceiling, is usually the cleaner position. Where your income has only recently changed, you're often better off waiting one more reporting period so the full income history is available, rather than applying now and being assessed on a lower average.
How does a mortgage broker find you a higher borrowing limit in Logan, QLD?
A broker compares the policies that drive the gap, not just the rates. Three differences move the number most for Logan buyers, and they're rarely advertised side by side.
- › Overtime and variable income treatment: some lenders on the panel take overtime in full once a twelve-month history exists; others shade it to 80% regardless. That single difference can shift the assessed income on a $60,000 overtime component by $12,000, which flows directly into the borrowing limit.
- › Credit card limit treatment: most lenders count the full limit as a monthly commitment whether you use it or not. A broker checks which lenders on the panel treat this more conservatively, and whether reducing or closing cards before application is worth doing for your specific profile.
- › DTI quota timing: knowing which lenders are running close to their APRA DTI ceiling in a given quarter means routing your application to one with capacity, rather than one that would have been right three months ago.
Whether any of these moves the number for you specifically depends on your income composition and which lenders your broker has access to. That's worth a conversation before you make assumptions based on one answer.
When we see a borrowing limit that feels low, the first thing we do is pull apart how each income component was treated. More often than not, there's a lender on our panel that reads the same income differently, and we'd submit to that one instead. The rate comparison comes second.
Nevada Matthews · Mortgage Broker and Co-Owner, Cube Loans · Chat to Nevada →
What mistakes do buyers make when comparing borrowing limits in Logan?
Where buyers lose ground:
- › Taking the first number as the market answer: one lender's assessment is one policy applied once. It is not the ceiling and it is not the average. The borrowing limit you're quoted by your existing bank is the least useful data point for understanding your actual capacity.
- › Applying to multiple lenders directly: every credit application places an enquiry on your credit file, and a cluster of enquiries in a short period signals financial stress to the next lender who pulls it. Comparing through a broker means one conversation, not five applications.
- › Leaving open credit cards on the file: a card you closed last year may still sit on your file as an active limit, reducing assessed capacity at every lender until the credit bureau updates it. Checking your credit report before applying costs nothing and can reveal this.
- › Timing the application inside a quota period: applying to a lender near its APRA DTI ceiling late in a quarter, when the pool is near capacity, produces a different result than the same application submitted to the same lender at the start of the next quarter. A broker who tracks which lenders are running close to their limit helps you avoid that timing problem.
Frequently Asked Questions
Why did my bank give me less than a mortgage broker found?
Your bank applies one set of income and expense policies, and it's usually not the most generous on the market. A broker compares across multiple lenders and identifies the one whose policy treats your specific income composition most favourably.
Does the APRA serviceability buffer apply at every lender?
The 3% buffer applies to all authorised deposit-taking institutions such as banks and credit unions. Non-bank lenders are not subject to the same APRA requirement, though most apply their own internal buffer.
Is a professional LMI waiver the same as a higher borrowing limit?
No. An LMI waiver lets eligible professionals borrow above 80% LVR without paying lenders mortgage insurance. It affects the deposit you need, not the total you can borrow. Borrowing capacity is a separate assessment.
Should I pay out my HECS before applying?
If the remaining balance is small, paying it out removes the repayment as a committed expense in the serviceability calculation, which can lift your borrowing limit. For a large balance, the cash is usually better kept as deposit. A broker can model both scenarios for your specific numbers.
Does closing a credit card before applying actually help?
Yes, once the closure is reflected on your credit file. Most lenders count the full limit as a monthly commitment regardless of your balance, so reducing or closing cards before application lowers your assessed commitments and lifts your capacity.
Is a mortgage broker better than going directly to a lender for borrowing capacity?
A mortgage broker, every time. A broker runs your numbers across multiple lenders and finds the one whose policy produces the strongest outcome for your income type, rather than returning the single answer one lender's model produces.
Your Next Steps
The borrowing limit a single lender gives you tells you what that lender will do with your income, not what the market will do with it. For buyers in Logan, QLD, where the difference between suburbs is often measured in $100,000 increments, getting the right assessment from the right lender is a decision worth making deliberately.
Ready to find out which lenders will work best for your borrowing situation? Contact the Cube Loans team or call 1800 774 756. We'll canvas our 60+ lender panel and find the most suitable options for your circumstances.
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External Resources
Cube Loans, Loganholme and Logan, QLD, Cube Central Pty Ltd, Credit Representative 472851, 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.
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