TL;DR — Key takeaways
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When you’re ready to get a home loan, you have two main paths: go directly to your bank, or work with a mortgage broker. Both can get you a loan. But they’re not the same experience — and the difference in outcome can be significant.
This guide breaks down how mortgage brokers and banks actually compare — across rate, choice, cost, and accountability — so you can make an informed decision before you apply.
The core difference: one lender vs many
When you walk into a bank, you’re working with one lender. Their staff will show you the products their institution offers — and that’s the full extent of your options. There’s no comparison happening. You’re being assessed for their loan, on their terms.
A mortgage broker works differently. They access loan products from a panel of lenders — typically 20 to 40+ — and compare them against your situation to find what fits. That includes the big four banks, smaller lenders, and specialist options you may never have encountered on your own.
According to the MFAA, mortgage brokers now write more than two-thirds of all new home loans in Australia — a reflection of the value borrowers consistently find in the comparison model.
A fair comparison: what each option actually gives you
Does using a mortgage broker cost anything?
No. Mortgage brokers are paid a commission by the lender after your loan settles — not by you. The commission is fully disclosed upfront, and under Australian law it must not influence the loan they recommend to you.
Some brokers charge a fee for complex scenarios (for example, self-employed borrowers with unusual structures), but this is the exception and will always be disclosed before you commit to anything. For the vast majority of borrowers, the service is completely free.
The legal angle: best interests duty
This is one of the most important differences — and one that most borrowers don’t know about.
Since 2021, mortgage brokers in Australia have operated under a best interests duty regulated by ASIC. In plain terms, they are legally required to recommend the loan that best suits your situation — not the one that pays them the highest commission, and not the one their largest lending partner prefers.
Bank staff have no equivalent legal obligation. They are employees of the bank, and their role is to sell their employer’s products. That’s not a criticism — it’s simply the nature of the relationship.
Can a broker get you a better interest rate?
Often, yes. Brokers work across the market and can compare live rates from multiple lenders for your specific borrower profile. They also know which lenders are pricing aggressively right now, which ones have policy changes that work in your favour, and which ones to avoid for your situation.
A bank’s lending staff will not tell you that a competitor is currently offering a sharper rate. A broker’s job is to find exactly that. Use Rateseeker’s comparison rate calculator to understand how the full cost of a loan compares once fees are factored in — not just the headline rate.
When does going directly to a bank make sense?
To be straightforward: for most borrowers in most situations, a broker delivers a better outcome. But there are a few scenarios where going direct has its own logic.
You already have a great relationship with your bank. If your bank knows your financial history well and consistently offers you competitive pricing, starting there first is reasonable — just make sure you compare before you commit.
Your loan is simple and your situation is straightforward. PAYG employment, strong deposit, standard property type — banks handle vanilla applications well. Where brokers add the most value is complexity: self-employed income, variable earnings, non-standard property types.
You’ve already done the comparison. If you’ve researched the market yourself, used a borrowing power calculator, and are confident a specific bank’s product is the right fit, applying directly is a perfectly valid path.
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Frequently asked questions
For most borrowers, a broker offers more choice and often a better outcome. A broker compares loans across 40+ lenders, finds options that suit your situation, and manages the application — at no cost to you. Going directly to a bank limits you to that lender’s products only.
No. Brokers are paid a commission by the lender once your loan settles. This means the service is free to you as the borrower. Under the best interests duty regulated by ASIC, they are legally required to recommend loans that are in your best interest, not the lender’s.
Often yes. Brokers compare rates across the market and know which lenders are pricing competitively for your borrower profile right now. A bank’s staff won’t volunteer that a competitor has a better rate. A broker’s job is to find exactly that.
Under Australian law, mortgage brokers have a legal obligation to act in the best interests of their clients. They must recommend the loan that best suits your needs, disclose any conflicts of interest, and prioritise your outcome over their commission. Bank staff have no equivalent legal obligation.
A broker is particularly valuable for first home buyers. They can identify grants and schemes you may qualify for, explain the full cost of each loan using a comparison rate calculator, and guide you through the process from start to settlement — all without charging you a cent.