Why Lenders Give Different Borrowing Limits in South East Melbourne, What Actually Changes
You've spoken to two lenders and come back with two completely different numbers. One says you can borrow $750,000. The other says $650,000. Same income, same debts, same deposit — yet the gap is $100,000. That's not a mistake, and it's not one lender being generous. It's how the system works, and understanding why changes what you do next.
Borrowing limits in South East Melbourne vary between lenders because every lender runs their own credit policy. They all follow APRA's rules, but within those rules they make different calls on how much of your overtime counts, which expenses they benchmark against, and how they read a credit card limit you never use. Those three decisions alone can swing your number by tens of thousands.
Our team helps buyers across South East Melbourne work through exactly this — comparing home loan options across 60+ lenders so the number you're working with reflects the most suitable assessment of your situation, not just whichever lender you happened to call first.
Key takeaways
- Lenders follow the same APRA rules but apply different credit policies.
- Overtime, card limits and living expenses each move your number differently per lender.
- The APRA DTI cap means timing and lender choice both affect your result.
Why do lenders give different borrowing limits for the same income?
Every lender uses a serviceability model, but the inputs differ. Two lenders applying APRA's 3.0% buffer to the same borrower still reach different answers because they disagree on how much of that borrower's income counts and how much of their spending is a committed expense. The buffer is standardised. The inputs aren't.
Source: APRA.
How do lenders actually calculate how much you can borrow?
Lenders assess whether your income — after the buffer is added to the loan rate — covers your expenses and your new repayments. They add the APRA serviceability buffer of 3.0% on top of your actual loan rate, which brings the assessment rate to approximately 9% on current pricing. That's the rate they test repayments against, not the rate you'll actually pay.
Where lenders split is on what counts as income and what counts as an expense. Overtime is the clearest example: some lenders take it in full once you've shown a consistent history, others shade it to 80%. A borrower earning $120,000 base with $20,000 in consistent overtime has assessed income of either $140,000 or $136,000 depending on which lender they're talking to. That $4,000 difference flows straight through to the borrowing limit.
Living expenses follow the same pattern. Most lenders use the Household Expenditure Measure — a benchmark from the Melbourne Institute — as a floor. If your declared expenses sit below HEM, the lender substitutes HEM anyway. But HEM itself isn't a single published number; it's licensed data that varies by household size and location, and lenders apply it differently.
We see buyers come in after speaking to their existing bank, genuinely convinced they can't borrow enough to buy in the area they want. Nine times out of ten, it's not that the number is wrong — it's that one lender's policy on overtime or credit card limits has set the ceiling, and another lender's policy doesn't have that ceiling at all.
Evelyn Clark · Director, Mortgage & Finance Broker · Chat to Evelyn →
What specific things move your borrowing limit between lenders?
The differences aren't random. They cluster around a handful of policy points that lenders are genuinely divided on.
The four main variables:
- › Variable income: overtime, shift penalties, bonuses and commissions are accepted by most lenders but shaded differently — some count them in full, others at 80% to 100% depending on the history you can show.
- › Credit card limits: most lenders assess approximately 3% to 3.8% of your total credit card limit as a monthly commitment, regardless of what you actually owe. A $20,000 limit you never use can reduce your assessed capacity by roughly $60,000 to $80,000 depending on the lender and your income level.
- › Living expense benchmarking: lenders substitute HEM where your declared expenses are lower, but the HEM figure they use varies by household type and some lenders add their own loading on top.
- › APRA's DTI cap: from 1 February 2026, APRA restricts lenders from writing more than 20% of new loans at a debt-to-income ratio of 6x gross income or higher. Owner-occupier and investor pools are tracked separately, so a lender near its investor quota may decline a file it would otherwise approve — and a different lender may have more room in that pool that month.
Source: APRA.
How much does the gap between lenders actually matter in South East Melbourne?
It matters most where property prices are close to what you can borrow. In South East Melbourne, where CoreLogic data shows house medians ranging from $1,280,000 in Moorabbin and $1,298,750 in Cheltenham through to $4,960,000 in Toorak, most buyers are already working near their capacity ceiling. A $60,000 to $100,000 swing between lenders isn't academic — it's often the difference between the suburb you're targeting and the next one out.
Unit buyers feel it differently. With 22 of the 28 approved suburbs carrying unit medians under the $950,000 First Home Guarantee cap, first-home buyers in particular are often buying where serviceability, not the price cap, is the binding constraint. Whether your overtime counts in full or at 80% is exactly the kind of variable that determines whether you can buy in Elsternwick — Cheltenham or Bentleigh at the unit price point you're targeting.
Source: CoreLogic (via YIP, June 2026).
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When does chasing a higher borrowing limit not make sense?
If the only way to reach your target number is to stretch to the lender with the most permissive policy on every input — overtime in full, lowest HEM loading, highest DTI tolerance — you're building your application around the most optimistic set of assumptions rather than the most durable one. A lender that counts every dollar of variable income in a strong month may assess the same income differently at renewal or if your hours shift.
Borrowing to your absolute ceiling also leaves no buffer for rate movements. The APRA 3.0% serviceability buffer exists for exactly this reason, but it applies at application — it doesn't prevent financial stress if rates rise further after settlement. If the difference between lenders is $50,000 and you can genuinely service the larger loan comfortably on a conservative income scenario, the comparison is worthwhile. If the difference is $15,000 and it takes every favourable assumption to get there, the lower limit is often the cleaner result.
How do mortgage brokers help you find the right limit in South East Melbourne?
The lender choice decides the outcome here, not the rate. Three policy differences move the number for most South East Melbourne buyers, and they're not published side by side anywhere.
- › Variable income treatment: whether your overtime or shift penalties are taken in full or shaded — a policy difference that moves assessed income by thousands per year.
- › Credit card handling: whether a limit reduction before application is worth doing, and which lenders weight existing limits most heavily in their serviceability model.
- › DTI pool timing: which lenders currently have capacity in their high-DTI lending pool, since a lender near its 20% quota may decline a file another lender would approve that same week.
Comparing across a panel finds the lender whose policy fits your income shape — not just their headline rate.
Where the income includes a genuine variable component — shift loadings, regular overtime, a commission trail — I'd almost always look at two or three lenders before forming a view on the real limit. The difference in how those lenders read the same payslip can be significant, and it's not something a borrower can easily find out by calling each lender themselves.
Evelyn Clark · Director, Mortgage & Finance Broker · Chat to Evelyn →
What goes wrong when buyers rely on one lender's number?
Where borrowers lose ground:
- › Closing the credit card too late: lenders assess the limit that appears on your credit file at application. Paying a card down to zero helps; closing the account before the file updates is what moves the number. The timing matters and it's something to do weeks before applying, not the day before.
- › Treating the first number as fixed: a borrower who accepts a $650,000 limit from their bank and doesn't compare may be buying in a different suburb from where a $720,000 limit — available through a different lender's overtime policy — would have put them.
- › Multiple applications in quick succession: each application leaves an enquiry on your credit file, and multiple enquiries close together signal to lenders that you've been declined elsewhere. Running applications through one broker who compares before applying avoids this.
- › Buy Now Pay Later on bank statements: BNPL arrangements appear as commitments in bank statement reviews, even small ones. Most lenders treat active BNPL accounts as an ongoing commitment in their serviceability model, and a cluster of small accounts can add up to a meaningful reduction in assessed capacity.
Frequently Asked Questions
Why did one lender give me a lower borrowing limit than another?
Lenders use different credit policies within APRA's rules, so the same income and debts produce different results. The most common reason is how each lender counts variable income and credit card limits.
Does cancelling a credit card increase my borrowing capacity?
Yes, because lenders assess approximately 3% to 3.8% of the card limit as a monthly commitment regardless of the balance. Closing the account before you apply — not just paying it down — removes that commitment from the assessment.
What is the APRA serviceability buffer and why does it reduce my limit?
The buffer is 3.0% added to the actual loan rate for assessment purposes, bringing the test rate to approximately 9%. It exists to ensure you can still service the loan if rates rise after settlement.
Can the APRA DTI cap affect my application even if I'm not a high earner?
Yes, if the loan you need puts your total debt above 6x your gross income, a lender near its 20% quota for high-DTI lending may decline your file even though a different lender has capacity available that month.
Is it worth applying to multiple lenders to find the highest limit?
Not directly — each application leaves an enquiry on your credit file, and multiple enquiries signal risk to lenders. A broker compares policies before applying, so you reach the right lender once rather than several times.
Is a mortgage broker or a bank better for finding the right borrowing limit?
A mortgage broker, every time. A bank shows you one policy. A broker compares credit policies across a panel of lenders and matches your income shape to the lender most likely to assess it favourably.
Your Next Steps
For buyers across South East Melbourne, the borrowing limit you're working with is only as accurate as the lender you happened to speak to first. Where your income includes overtime, shift penalties or any variable component, the difference between one lender's policy and another's can be substantial — enough to change which suburb you're buying in, or whether you need LMI at all.
The right lender for your borrowing position depends on your situation, and that's a conversation worth having. Talk to the EverLend team or call 03 7036 3356, and we'll compare your options across 60+ lenders.
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External Resources
EverLend · South East Melbourne · Ever Lend Pty Ltd (ACN 625 080 515), 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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