Mortgage Broker vs Bank: What a Broker Really Does, How They Get Paid, and How to Choose

A banker and a broker can end up with the same borrower. That is the strange thing about the home loan market in Australia, and it is where this story starts.

Picture two first-home buyers in the same suburb, both in their early thirties, with the same deposit saved and the same loan size in mind. One books a Saturday appointment at the bank they have banked with since school. The other takes a colleague’s recommendation and sits at a kitchen table while a broker opens a laptop and lays out a row of lender options, more banks and credit unions than the buyer knew existed.

Same suburb, same deposit, same price range. Two different doors into the same loan, and both borrowers are convinced theirs is the smart one.

This article is about which door fits which borrower. It is also about the question nobody asks at the weekend barbecue: if a broker is free, how does the broker get paid, and can you trust where the money comes from? The honest answer sits in section three, and it matters more than any rate comparison you will read.

One line before we start. This is general information about how home lending works in Australia, not financial advice. Your own situation, and the lender or broker you deal with, is where the real decisions get made.

What a mortgage broker actually does

At its simplest, a mortgage broker is an intermediary. The broker does not lend money and does not hold your deposit. Instead, the broker compares home loans across a panel of lenders, narrows the field down to the ones that fit your situation, and submits the application for you.

The panel matters. A broker’s panel might include the big four banks, smaller banks, credit unions, building societies and non-bank lenders, often in the dozens. What it will not usually include is every lender in Australia, and that is the honest limit worth holding onto: a broker can only offer you the lenders on their panel. The panel is not the whole market, whatever the brochure implies.

What a broker actually does with that panel is the part borrowers underrate. One application, one set of paperwork, and someone whose job is to chase the lender’s assessor when the file goes quiet. People who have done the comparing themselves describe the difference in one line: a broker can chase up directly with the account manager, where a borrower going direct is usually talking to whichever phone operator answers. The application still has to pass the same credit check, and nobody can magic a loan into existence that the numbers do not support. But there is a real gap between someone who does this for a living and a borrower doing it for the first time in a decade.

The application, the paperwork, the chasing and the explaining of offers are the service. How it is paid for is the question almost nobody asks, and it is the next section.

How brokers get paid (and the questions that matter)

Here is the transparency question the title promised, and the one the weekend conversations skip.

In Australia, a mortgage broker is usually paid by the lender, not by you. When your loan settles, the lender pays the broker a commission. That is often two parts: an upfront commission when the loan is written, and a trailing commission paid over the life of the loan. Because the lender pays, the borrower does not usually pay the broker a fee out of pocket. That is where the word ‘free’ comes from, and it is only half the story.

Free does not mean without incentive. If a commission can vary between lenders, it can create a quiet pull towards the lender that pays well rather than the one that is cheapest for you. Australian law answers this with something called the best interests duty, which requires a mortgage broker to act in your best interests and to put your interests ahead of their own when the two conflict. It has applied to brokers since 2021. It is real protection, and it is not a guarantee that every broker behaves well, which is why the questions below still matter.

Ask these three things before you commit to a broker, and ask for the answers in writing:

• ‘How are you paid, by the lender or by me, and how much?’ The answer tells you which way the incentive runs.
• ‘Does your panel include every lender or a chosen few?’ A short panel is not automatically bad, but it should be disclosed up front.
• ‘Under the best interests duty, are you required to act in my interests?’ Every broker should say yes, and be able to explain it without a script.

A broker who answers those cleanly, without a pause and without paperwork you never see, is a broker worth shortlisting. A broker who goes vague on the payment question should not make the shortlist.

Going direct to the bank: the other door

The other door is the one most first-home buyers picture first: walking into a branch, or calling the bank, and dealing with the lender directly.

Going direct means dealing with one lender’s own home lending specialist, and it is limited to that bank’s products. You are not comparing the market, because the market is not in the room. What you get is one bank’s rates, one bank’s policies and one bank’s idea of your borrowing power.

There are situations where that is genuinely the right call. A borrower on a straightforward salary, with a long relationship and loyalty pricing from the bank, may find the direct route simple and fast. There is also the speed question: dealing with a lender you already know can be quicker for approval, and speed matters when you are buying property. If you already know the bank, the product and the price, there may be nothing a broker would add.

The limit is the mirror image of the broker’s. One lender is one lender. Its policies, its rates and its idea of your situation are all you get, and nobody is comparing the rest of the market on your behalf. If the bank says no, or the rate is not competitive, you start again from zero with the next lender yourself.

The comparison, in plain terms

Put side by side, the two routes are simpler than the marketing suggests. Choice is the first difference. A broker offers a panel of lenders, often in the dozens; a bank offers itself. Cost to the borrower is usually similar, because going direct does not usually carry a fee either and a broker is paid by commission rather than by you, but that is exactly why the payment questions matter before you choose either.

Quality is the difference most often misread. On the broker side, the variable that decides the experience is the individual broker. On the bank side, it is the lender’s policies and the strength of your existing relationship. Time runs the other way: a broker runs the paperwork and the chasing, where a borrower who wants to compare several lenders directly has to do the legwork themselves.

Complexity is where the routes genuinely separate:

• Self-employed income, irregular income, bonus-heavy pay or a non-standard deposit: a broker who knows which lenders accept those profiles earns their keep.
• A simple loan, a standard salary and a straightforward deposit: a bank can handle that fine, and so can a broker.
• Refinancing: a broker can run the comparison across lenders for you; going direct means asking your own bank what it will do to keep you.

None of this says one route is always better, because it is not. It says the routes fit different situations, and the next section is the honest framework for working out which is yours.

Which route fits you: the honest framework

The framework is four questions, the same ones the decision helper above walks through, set out here in prose.

A broker leans in your favour when your situation is complex: self-employed or irregular income, a guarantor, a non-standard deposit, past credit issues, or buying through a trust or self-managed super fund. That is the territory where a good broker earns their keep, because they know which lenders take which profiles, and that knowledge is the product.

A broker also leans in your favour when you are time-poor. If you are comparing lenders at midnight after a full day of work, someone who runs the paperwork and chases the assessor is doing real work for you.

Going direct can be the right call when the loan is simple and the situation is standard: a PAYG salary, a clean deposit and no complications. That is especially true if your own bank’s pricing is competitive and your relationship earns you something. Speed with a lender you already know has genuine value when a settlement date is bearing down on you.

Here is the honest line: on the broker side, the biggest variable is the individual broker. A good one earns their keep and can beat the bank on your behalf. An indifferent one is why people end up going direct, convinced all brokers are the same. The route is not the gamble; the broker is.

So how do you find a good one, if your answers point that way?

• Ask how many lenders they compare, and name a few.
• Ask for their reasoning in writing, not just a rate on a screen.
• Ask the payment and panel questions from section three before you commit.

Shortlist two or three, ask each the same questions, and compare the answers on the same page. That is the local, human version of this whole decision, and it is how you actually find a good broker.

Broker or bank: the honest answer for your situation

So which is it, broker or bank? The honest answer is that both doors stay open for most borrowers, and the decision comes down to your situation rather than a rule.

If your income is standard, your deposit is clean and your own bank’s rate is competitive, going direct can be the right call, and nobody should talk you out of it. If your situation has complexity, your income is not a simple salary, or you simply do not have the time, a broker leans in your favour, and the best of them will show you why in the first conversation.

Whatever the route, the questions are the same. Who is paid, how much, and by whom? How many lenders am I actually being compared against? Is this person required to act in my interests, and can they explain it? A straight answer to those three is worth more than any advertised rate.

Run the decision helper above honestly. If your answers point to a broker, shortlist one or two local ones and put the payment and panel questions to each. If they point to the bank, take your own bank’s rate and policies and test them against the market once, just to be sure. Same suburb, same deposit, same goal. The door that fits is the one you can see clearly through.

Sources: ASIC Moneysmart, using a mortgage broker · ASIC, best interests duty and mortgage brokers · Australian Banking Association and lender comparison pages, for rate and fee confirmation