Most home buyers are fixated on two numbers:
- “How little can I put down as a deposit?” and
- “What’s your cheapest rate?”
In a high price, tight lending market, that combo can be a very expensive mistake.
Here are some common myth busters about lending you should know.
MYTH 1
A 5% deposit means you’re “in the clear”
Many Aussies think once they’ve scraped together 5% plus stamp duty, they’re home.
In reality, the lender (and often the insurer or government) still has a lot to say about whether that 5% is enough.
What you’re not told:
- A 5% deposit does not guarantee approval. Your income, debts, credit behaviour and how you saved the deposit all play a critical role.
- On a $900,000 property, 5% is $45,000, however you also need stamp duty (unless exempt), legals, inspections and some other costs buffer.
- Some lenders would like a bigger deposit for certain postcodes and property types (eg high density units, studio apartments, regional areas), or if your income is heavily bonus/commission based.
THE TRAP
Stretching to a 5% deposit with no buffer.
Surprises such as a valuation coming in short, a last minute lender condition, or a repair bill you weren’t expecting, and you can find yourself scrambling for extra cash or having to walk away from the purchase.
MYTH 2
“LMI is just dead money”
Lenders Mortgage Insurance (LMI) cops a lot of negativity. And yes, it’s not fun paying a big premium to protect the lender, not you. However the “LMI is always bad” line is too simple.
What LMI actually does:
- It allows you to buy with less than a 20% deposit by transferring some risk from the bank to the insurer.
- The premium can usually be capitalised (added to the loan), so you don’t have to pay it out of pocket upfront.
- For some borrowers, using LMI may help them buy sooner and perhaps even offset the LMI cost in the event that prices keep rising.
Circumstances where you may consider LMI:
- You have strong, stable income and can comfortably afford the repayments, however you’re stuck building a deposit while prices outrun you.
- You’re in a location with genuine supply constraints and strong long term fundamentals, so waiting risks being permanently priced out of the area.
- You’re a professional or in a growth field and can reasonably expect your income to grow faster than your debt.
Where LMI is risky:
- your budget is already stretched at today’s rates
- you’re buying in a very speculative or oversupplied market where price falls are more likely
- you have no emergency buffer after settlement
A helpful way to think about it is:
“What’s my 5-10 year scenario if I pay LMI and buy now” as opposed to waiting and thinking “LMI is evil, full stop.”
MYTH 3
“Any deposit will do – who cares how I got it?”
Lenders care deeply about how your deposit was saved. That’s where genuine savings comes in. A concept most buyers only hear about right before an application is lodged.
Genuine savings usually means:
- money you’ve held in your name (or both names) for at least 3 months, or
- regular savings patterns over that period, or
- with some lenders, extra repayments in an existing loan or offset.
What often does not count as genuine savings on its own:
- Some lenders may not treat a sudden lump sum gift as genuine savings on its own.
- A personal loan you’ve taken out to ‘boost’ your deposit.
- Short term crypto or share speculations that could vanish just as quickly.
Why it matters:
- Some lenders may require genuine savings equal to a portion of the purchase price, on top of any grants or gifts.
- If you don’t meet the genuine savings test, it can push you into a smaller lender pool, with potentially higher rates or tighter conditions.
- In a tough credit environment, strong genuine savings habits may improve how a lender assesses an application.
Practical angle
If you know you’d like to buy in 6-18 months, start building a clear, documented savings pattern now.
It’s not just about the amount, it’s about the story your bank statements tell.
MYTH 4
The “cheapest rate” is always the best loan
This is the big one. Comparison sites have trained everyone to chase the lowest headline number.
However, the cheapest rate on the screen may not always be the most suitable choice in practice.
Here’s why a fractionally lower rate can backfire:
- Product and policy restrictions
That low rate lender might clamp down harder on debt to income ratios, overtime, bonus income or rental income.
If they’ll lend you less than another lender, you may need to compromise on location, size or features. - Fees, structure and features
A slightly higher rate with an offset account, redraw or lower break fees may suit some borrowers better depending on how they use the loan.
Ultra cheap ‘no frills’ loans can sting you later if you would like to restructure, split, fix or need more flexibility as your life changes. - Time and opportunity cost
A lender with a dirt cheap rate yet slow, painful processing could make you uncompetitive at auction or cause you to miss a tight finance deadline.
In a market where good properties are scarce, the ability to move quickly can be worth far more than 0.10% off the rate. - Long term strategy
Choosing a lender that plays nicely with your future plans (upgrading, investing, using equity) may improve your borrowing capacity over time, depending on your circumstances and lender policy.
A ‘cheap yet rigid’ lender may box you in so you pay more in the long run through extra refinances, forced sales or missed opportunities.
Instead of asking…
“What’s your lowest rate?”
A smarter question is…
“What structure and lender mix gives me the best
balance of rate, borrowing power, flexibility and risk
management for the next 5-10 years?”
MYTH 5
“In a tight lending world, it’s all about what the online calculator says”
Many buyers fire up a bank’s borrowing power calculator or app, punch in their numbers and assume that’s the end of it – “yes” means approved, “no” means game over.
What’s really happening:
- Those tools use simplified rules and averages. They don’t see your full picture – things such as irregular income, upcoming life changes or clever debt structuring.
- With APRA’s 2026 caps on high debt to income (DTI)loans (eg debt over 6x income), even if the calculator says “yes”, the lender’s final policy limits or manual review might say “no”.
- Different lenders’ calculators give wildly different results because their DTI thresholds, expense buffers and income assessments vary.
THE TRAP
Treating the calculator as gospel instead of a starting point.
A $950k “yes” from Big4 Bank A might become a $850k “maybe” at Big4 Bank B – or a solid “yes” from a non-bank if you know the levers to pull.
What seals the deal:
- A broker who knows exactly what lenders are tight on DTI right now, those that capitalise more rental income and how to sequence your application for maximum power.
- Prep such as cleaning up BNPL debts or documenting that side hustle before you even look at properties.
Human strategy still matters.
The order you do things in, the debts you clear first, how you use guarantors or gifted funds and the lender you target can add or remove tens of thousands from your borrowing power.
Bringing it together
What smart buyers focus on
Instead of obsessing over 5% deposits and cheapest rates, the switched on buyer is asking:
- Is my deposit structure (savings, gifts, grants, LMI, guarantor options) set up in a way lenders will like?
- How much buffer will I have after I move in, at today’s repayment levels plus a reasonable rate rise?
- What lender will give me the right combination of borrowing power, policy fit, features and flexibility -not just the lowest marketing rate?
- What’s my 5 and 10 year plan, and does this loan set me up for that, or paint me into a corner?
That’s where good advice pays for itself – not in shaving a tiny bit off the rate, however in making sure the whole puzzle (deposit, LMI, genuine savings, structure and strategy) actually works for your life